The strong white fibrous material called the periosteum: question content area bottom.
a. surrounds the abdominal cavity.
b. surrounds the heart.
c. covers the bones.
d. protects the perineum.
The strong white fibrous material called the periosteum covers the bones.
What is periosteum ?Layers of tissue inside and around your bones include the periosteum, endosteum, and perichondrium. Your bones' outer sheath, known as the periosteum, provides them with blood, nerves, and the cells they need to grow and mend. Your bones' endosteum, a membrane that surrounds the bone marrow in the middle of them,
Three functions of the periosteum have been identified: production of osteocytes and chondrocytes from pluripotent, undifferentiated mesenchymal cells; provision of a scaffold for osteocyte and chondrocyte proliferation; and production of growth factors.Learn more about Periosteum here:
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Microbiologists study a variety of organisms, but all are considered either bacteria, archaea or eukarya.
a. true
b. false
Microbiologists study a variety of organisms, but all are considered either bacteria, archaea or eukarya.-True.
Microbiologists are the specialist who study a variety of organisms including bacteria, archae and eukarya.
These organisms includes all the viruses, bacteria, algae, fungi, slime molds, and protozoa which are collectively called as microbes. The discipline is called microbiology.
As microbes have a primary role in the environment and are considered to be the most ancient organisms existing, their study is crucial for our understanding of life.
They impact our life both positively as well as negatively.
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A small population of sawflies that was once connected to a larger population but is now isolated is no longer experiencing?
The Gene flow is restricted when a small population of sawflies that was once connected to a larger population becomes isolated.
What is gene flow?
The movement of genes into or out of a population is referred to as gene flow. Such movement may result from the movement of gametes or from the migration of specific organisms that reproduce in their new populations (e.g., as a consequence of pollen transfer among plants). Gene flow causes genetic homogeneity among demes in a metapopulation in the absence of natural selection and genetic drift.
As now the sawflies are isolated hence there will be no free movement of individuals hence there will be no gene flow.
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According to linnaean taxonomy, what is the most specific category and level shared by humans, gorillas, and howler monkeys (from the new world)?
The most specific category and level shared by humans, gorillas, and howler monkeys (from the new world) are Suborder Anthropoidea.
What is suborder Anthropoidea?Anthropoidea is a suborder of primates that includes humans, gorillas, and monkeys. Anthropoids are larger than prosimian primates and have flatter, more human-like faces. They also have larger brains.
Unquestionably apes, dryopithecines lived in the following Miocene. According to the conventional palaeontological theory, these Miocene apes gave rise to three new lineages in turn, one of which led to gibbons, another to big apes, and the third to humans.
However, it has long been held that the ancestors of both gibbons and orang-utans diverged from the ancestral line of the advanced Primates at an early date and that this line only later split into two groups, one of which included humans and the other of which included the gorilla and the chimpanzee; recent palaeontological evidence now tends to support this second view.
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Which of the following lists the three biomes that tend to have the greatest amount of rainfall throughout the year?
The biome of tropical rainforests receives the most annual precipitation. Most areas receive between 200 and 430 centimeters of rain yearly.
The biggest geographic biotic unit and sometimes known as a major life zone, a biome is a huge community of plants and animals that share comparable life forms and environmental conditions. It is named by the predominant vegetation type, such as grassland or coniferous forest, and comprises a variety of communities.
It is divided into the aquatic, woodland, tundra, and grassland biomes, as well as the desert and desert biome. Coniferous forests, deciduous forests, Mediterranean forests, and tropical rain forests are further divisions of forest biomes.
High average temperatures, a diversity of species, and nutrient-poor soil are characteristics of tropical rain forests. They are also distinguished by very high yearly rainfall with a brief season of less rain. There is no dry season, and each month receives an average of 60mm of precipitation.
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The complete question is :
Which of these biomes receives the greatest amount of yearly rainfall?
a. boreal forest
b. grasslands
c. temperate forests
d. tropical rainforests
The biome of tropical rainforests receives the most annual precipitation. Most areas receive between 200 and 430 centimeters of rain yearly.
The biggest geographic biotic unit and sometimes known as a major life zone, a biome is a huge community of plants and animals that share comparable life forms and environmental conditions. It is named by the predominant vegetation type, such as grassland or coniferous forest, and comprises a variety of communities.
It is divided into the aquatic, woodland, tundra, and grassland biomes, as well as the desert and desert biome. Coniferous forests, deciduous forests, Mediterranean forests, and tropical rain forests are further divisions of forest biomes.
High average temperatures, a diversity of species, and nutrient-poor soil are characteristics of tropical rain forests. They are also distinguished by very high yearly rainfall with a brief season of less rain. There is no dry season, and each month receives an average of 60mm of precipitation.
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The complete question is :
Which of these biomes receives the greatest amount of yearly rainfall?
a. boreal forest
b. grasslands
c. temperate forests
d. tropical rainforests
The nucleus is located in the center of the atom.
O True
O False
Answer:
the answer is true
Explanation:
hope it helped
Distended neck veins, difficulty breathing, cough, severe headache, and tachycardia represent which type of blood transfusion reaction?
The skeletal muscle fibers that fatigue most easily are:_______
1. red muscle fibers.
2. slow oxidative (type i) fibers.
3. fast glycolytic (type iib) fibers.
The skeletal muscle fibers that fatigue most easily are fast glycolytic (type iib) fibers.
What is skeletal muscle fibers ?Flexible muscle fibers that range in diameter from less than half an inch to just over three inches make up skeletal muscles. Typically, these fibers run the entire length of the muscle. You may perform a wide variety of actions because to the muscles' ability to move bones when their fibers contract (tighten).
What are the characteristics of skeletal muscle fibers?Skeletal muscle is striated, similar to cardiac muscle; it has long, thin, multinucleated fibers that are crossed is covered by tiny red and white lines that give the muscle its distinctive appearance. Connective tissue holds skeletal muscle fibers together while allowing them to communicate with blood vessels and neurons.
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Which manifestation would a nurse expect when assessing a child with insufficient growth hormone (gh) secretion?
On the growth chart, place lower than 10%
What causes the growth hormone to be released?Episodic hypothalamic hormones induce pituitary GH synthesis and secretion. Somatostatin (SST) suppresses GH synthesis whereas growth hormone releasing hormone (GHRH) promotes. The creation of IGF-I is induced by GH, and this in turn prevents the release of GH from the pituitary and hypothalamus.
The hypothalamus and GH action mediators govern growth hormone (GH) release from the anterior pituitary.
When you sleep, the majority of HGH is released in pulses. These pulses are dependent on the circadian rhythm, or internal clock, of your body.
The pituitary gland produces growth hormone. Its many duties include preserving healthy body composition and metabolism. Your bones enlarge if you have too much growth hormone. It is known as gigantism in children and causes a rise in height.
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Ou are working with a bls team performing cpr on a 62-year-old female patient. which actions demonstrate high-quality cpr?
The answer to the question is-
1. Deliver steady ventilations that last a minute or more, causing the chest to elevate.
2. After every compression, let your chest to fully recoil.
3. At a rate between 100 and 120, compress the chest.
What is ventilation?Air movement between the atmosphere and the lungs that allows carbon dioxide in the alveoli to be replaced by oxygen.
In order to provide mechanical ventilation—the process of moving breathable air into and out of the lungs—to a patient who is physically unable to breathe or who is not breathing enough, a ventilator is a piece of medical technology. Patients can be ventilated with either a straightforward, manually operated bag valve mask or a computerized, microprocessor-controlled ventilator.
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How does the shape of red blood cells best represent the relationship between structure and function?
A purple blood mobileular has what's referred to as a biconcave form. Both facets of the mobileular's floor curve inward just like the indoors of a sphere. The shape is known as biconcave disk.
This form aids in a purple blood mobileular's cappotential to move via tiny blood vessels to supply oxygen to organs and tissues.The round erythrocyte is synthesized with inside the bone marrow with inside the mammals that's biconcave in shape.
After synthesis, the nucleus is eliminated through the manner known as nucleation. The absence of a nucleus lets in the crimson blood cells to incorporate greater hemoglobin and as a result convey greater oxygen.
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A land structure whose main function is to safeguard the coastal wetlands and mainland from ocean waves and storms are?
A land structure whose main function is to safeguard the coastal wetlands and mainland from ocean waves and storms are barrier islands.
Exceptionally flat or lumpy regions of sand that are formed by wave and tide action parallel to the mainland shore are known as barrier islands.
Certain features of barrier islands:-
barrier islands are coastal landforms and a type of dune system. They typically occur in chains made up of anywhere between a few and more than a dozen islands. Although they are susceptible to change during storms and other events, they serve to absorb energy, safeguard coasts, and establish protected water regions where wetlands can grow.To know more about dune system, refer this link.
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Scientists believe the smaller prokaryote in this example evolved into which organelle? Think about it! HINT: ATP and "Heterotrophic"
1. Golgi bodies
2. mitochondria
3. nucleus
4.chloroplasts
The endosymbiotic theory states that chloroplasts and mitochondria used to be free-linving bacteria that got phagocyted by another cell. The correct option is 2. Mitochondria.
What does the endosymbiotic theory state?
The endosymbiotic theory proposes that mitochondria and chloroplasts were once free-living bacteria that were phagocytized by another cell but not digested.
These bacteria got to adapt to their host, and both cells became interdependent.
Both organelles have many similarities with other free-living bacteria.
Chloroplasts probably derivate from cyanobacteria because both cells absorb sunlight, produce ATP, and organic molecules. Mitochondria derivate from rickettsias because they produce ATP in the same way by using the Krebs Cycle and Oxidative Phosphorylation.From the phagocytosis moment, these two cells became so dependant on each other, they could not survive without the other one.
According to the endosymbiotic theory, the smaller prokaryote evolved into mitochondria. Option 2.
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Which capillary type is the leakiest and has specialized cells known as kupffer cells associated with them?
Sinusoid (Discontinuous) Capillaries
A unique variety of capillary, sinusoid capillaries are present in the endothelium and have quite big, open holes.
There are sinusoid blood veins in the lymph nodes, the adrenal glands, and even the bone marrow. Some cells do not have tight connections between them; these cells are typically found in the liver and spleen.
These tiny blood arteries, referred to as sinusoids, contain open pores as opposed to the continuous and fenestrated forms of capillaries. Contrary to sinusoid capillaries, which lack a diaphragm and only contain an exposed open pore, fenestrated capillaries have diaphragm-like structures that cover the pores.
The permeability of the capillary is increased by these open pores, and this permeability allows albumin and other small- and medium-sized proteins to enter and leave the bloodstream.
What are Kupffer cells used for?
Kupffer cells, sometimes referred to as stellate macrophages and Kupffer-Browicz cells, are specialized cells found in the liver's sinusoids lumen and are adhering to the endothelial cells that make up the blood channel walls. The majority of tissue-resident macrophages in the body are found in kupffer cells.
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Under what circumstances might the plates of the earth stop moving?
For the earths core to cool enough for convection to stop, then the plates would have no convection current to move them.
What do you mean by convection?Convection is single or multiphase fluid flow that occurs spontaneously due to the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity.
Convection occurs on a large scale in atmospheres, oceans, planetary mantles, and it provides the mechanism of heat transfer for a large fraction of the outermost interiors of our sun and all stars.
Fluid movement during convection may be invisibly slow, or it may be obvious and rapid, as in a hurricane.
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A ____ is a set of statements about the mechanisms underlying a behavior. postulate
Theory
A Theory is a set of statements about the mechanisms underlying a behavior.
A mathematical theory is an axiom-based mathematical model of a particular area of mathematics. It can also refer to a body of knowledge (based, for example, on accepted axioms and definitions) and, in this sense, to a particular area of mathematical study that falls inside a predetermined framework.What are theory and logic?The foundation of mathematics, meantime, is the deduction or derivation of qualities or propositions with respect to specific objects or elements contained in a certain set. Logic is the study of derivation and deduction of properties and propositions. Set theory is the study of the universal characteristics of elements and sets.To learn more about theory visit:
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The functions of the muscles are to provide _____ and movement and to produce select .
Answer:
The functions of the muscles are to provide stability and movement.
Explanation:
And over 600 muscles make up the muscular system, which cooperates to allow the body to operate properly. The primary purpose of the muscular system is to facilitate movement. Muscle contractions enable both rough and precise movement. The majority of bodily muscle action is controlled consciously. However, certain actions—like pulling a hand away from a hot source—are reflexive. Stretching across joints, muscle tendons help keep joints stable. The stabilising function of the muscle tendons with in knee and also shoulder joints is essential.
The abdominal, back, and pelvic muscles make up the core muscles, which also stabilise the body and support activities like lifting weights. Skeletal muscles serve in maintaining the proper posture of the body while an individual is sitting or going to stand. This is referred to as posture.
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Many organisms that undergo chemosynthesis use ________ instead of ________ to fuel the processes that convert carbon dioxide into sugars.
Many organisms that undergo chemosynthesis use Hydrogen sulfide instead of Sunlight to fuel the processes that convert carbon dioxide into sugars.
What is chemosynthesis?Chemosynthesis, as opposed to photosynthesis, is the biological conversion of one or more carbon-containing molecules (typically carbon dioxide or methane) and nutrients into organic matter using the oxidation of inorganic compounds (such as hydrogen gas, hydrogen sulfide, or ferrous ions as a source of energy). The phylogenetically diverse organisms known as chemoautotrophs use chemosynthesis to obtain carbon from carbon dioxide. Chemosynthesis is a common method used by microorganisms in the deep ocean to create biomass from single carbon molecules. In the ocean, other species frequently eat chemosynthetic bacteria, and symbiotic relationships between chemosynthesizers and respiring heterotrophs are frequent.Learn more about the chemosynthesis with the help of the given link:
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Blood flows in layers within the lumen of blood vessels, with the layers in the middle of the lumen flowing fastest. this is known as ___laminar______ flow.
Blood flows in layers within the lumen of blood vessels, with the layers in the middle of the lumen flowing fastest. this is known as laminar flow.
What is Laminar flow ?The majority of the circulatory system typically operates with laminar flow. It is characterised by parallel motion of concentric layers of blood along a blood vessel's length. The middle of the vessel has the highest velocity (Vmax).
Laminar flow is when the flow is fastest in the centre of the blood vessel and slowest along the wall of the vessel, where there is greater friction (where there is less friction).Blood flow in the body is typically laminar. Laminar flow can, however, be disturbed and turn turbulent under situations of high flow, particularly in the ascending aorta. When this happens, blood does not flow in adjacent layers in a straight line or gradually; instead, it flows chaotically.Learn more about Laminar blood flow here:
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What are some p\opportunity cost of greater goverment role in the economy system?
Consumers are unable to purchase what they desire since producers have less control over what they produce.
What is government intervention's opportunity cost in the economy?The value of the resources that could have been employed to produce the things that are produced by the public sector. These resources may be used by individuals and businesses in the private sector if the government did not use them. Importance of opportunity cost to the Government: It aids the government in selecting which sector will receive greater resources. It assists the government in deciding how to distribute its resources to carry out its many programs, such as the allocation of greater funds to infrastructure or defense.Learn more about the opportunity cost with the help of the given link:
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A plant of genotype ccdd is crossed to ccdd and the f1 is testcrossed to ccdd. if the genes are unlinked, what percentage of ccdd recombinants will result?
A plant of genotype ccdd is crossed to ccdd and the f1 is testcrossed to ccdd. if the genes are unlinked, what percentage of ccdd recombinants will result in 0.20255075%
What is Genotype?An organism's genotype is made up of all of its genetic components. The alleles or variations that a person holds in a specific gene or genetic region are also referred to as the genotype.
The amount of copies of each chromosomes found in that species, also known as ploidy, determines how many alleles a person can have for a certain gene. In diploid organisms like humans, there are two complete sets of chromosomes, which means that each person has two different alleles for each gene. Homozygous refers to a genotype where both alleles are the same. Heterozygous refers to a genotype when there are two distinct alleles.
Phenotype, the observable qualities and attributes of an individual or creature, is influenced by genotype.
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What is the purpose of a rain gauge? a. to measure the amount of rainfall b. to predict how much rain is going to fall c. to predict whether or not it is going to rain d. to measure the temperature of the rain please select the best answer from the choices provided a b c d
The correct option is (a) To measure the amount of rainfall
A rain gauge is a meteorological device used to gauge how much rain falls over a specific area in a specified amount of time.
What is rain gauge and what is its function? The oldest known meteorological instruments are rain gauges, which are considered to have been in use in India more than 2,000 years ago. Simply put, a rain gauge is a cylinder that collects rain. An inch of rain has fallen if there is an inch of accumulation in the cylinder. It's that easy. The majority of common rain gauges feature a large funnel leading into the cylinder and are calibrated so that when rain collects within, one inch of rain equals one-tenth of an inch. The cross-sectional area of the funnel is ten times that of the tube. With this device, rainfall as little as.01 inches can be measured. A trace is defined as something that is less than.01 inches.Learn more about the Rain guage with the help of the given link:
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Answer:
a. to measure the amount of rainfall
Explanation:
Starting with fructose 6-phosphate and proceeding to pyruvate, what is the net yield of atp molecules?
Net yield of ATP starting with Glucose-6-phosphate is 3 ATP molecules.
The steps to the solution are as follows :
Step 1.
Fructose-6-phosphate is formed from glucose-6-phosphate.
Step 2.
Fructose-6-phosphate is converted to fructose-1,6-bisphosphate. One ATP molecule is used in this step.
Step 3.
Fructose 1, 6-biphosphate is converted into one molecule of each of three carbon compounds: dihydroxyacetone 3-phosphate, glyceraldehyde 3-phosphate, and glyceraldehyde 3-phosphate.
Step 4.
2 glyceraldehyde 3-phospahte molecules are converted into 2 glyceraldehyde 3-biphosphoglycerate molecules.
Step 5.
One molecule of 1, 3-biphosphoglycerate is converted into three molecules of 3-phosphoglycerate, yielding two molecules of 3-phosphoglycetare. This step required two ATP molecules, one for each molecule of 1, 3-biphophoglycerate converted.
Step 6.
Each molecule of 3-phosphoglycetare is converted to 2-phosphoglycetare, resulting in the formation of two molecules of 2-phosphoglycerate.
Step 7.
Each 2-phosphoglycerate molecule is converted into phosphoenol pyruvate.
Step 8.
Each phosphoenol pyruvate molecule is converted into pyruvate by producing one ATP molecule. As a result, two pyruvate molecules are formed, as well as two ATP molecules.
As a result, the net yield of ATP from glucose-6-phosphate to pyruvate is;
The number of ATP molecules used = 1 (during the step of converting fructose 6-phosphate to fructose 1, 6-biphosphate.
No. of ATP molecules formed = 4 (2 ATP molecules formed during the step of converting 1, 3-biphophoglycerate to 3-phosphoglycerate and 2 ATP molecules formed during the step of converting phosphoenol pyruvate to pyruvate).
As a result, the net yield of ATP is equal to 3.
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During the neolithic period, a major development in agriculture was the ability to?
Answer:
Plant domestication: Cereals such as emmer wheat, einkorn wheat and barley were among the first crops domesticated by Neolithic farming communities in the Fertile Crescent. These early farmers also domesticated lentils, chickpeas, peas and flax.
Microbes were first considered for bioremediation after marjory stephenson observed that they were digesting enormous quantities of waste from a sugar beet factory. the waste was accumulating in?
Wastewater, pollutants, and solid waste from sugar mills have an effect on the environment. And it accumulates in river water. Sludge that are washed from mills into freshwater bodies.
What is Bioremediation?
A subfield of biotechnology called “bioremediation” uses living things like bacteria and microorganisms to clean up contaminated environments.
It is used to clean up poisons, pollutants, and other contaminants from water, soil, and other habitats. A developing technology called bioremediation.
Conjunction with other physical and chemical treatment techniques to effectively handle a variety of environmental contaminants.
Using multidisciplinary technology will make it easier to predict the availability and biodegradation of contaminants in any natural or artificial system, human health posed by different environmental pollutants.
Therefore, river water were digesting enormous quantities of waste from a sugar beet factory to accumulate.
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If there is a burst of many stimulations to the mammalian nervous system during a one to four second period, it will result in _____.
Long-term potentiation of the cell's response to stimuli.
If there is a burst of many stimulations to the mammalian nervous system during a one to four second period, it will result in Long-term potentiation of the cell's response to stimuli.
What is Long-term potentiation?The process of long-term potentiation (LTP), which involves continuous synaptic strengthening, results in a sustained increase in signal transmission between neurons. In terms of synaptic plasticity, it is a significant process. LTP recording is a well-known cellular model for the investigation of memory.What does long-term potentiation look like?A mouse will, for instance, swam around in a pool of murky water until it discovers a concealed platform from which to climb out. The mouse quickly gains the ability to locate the platform more quickly with practice.What transpires during prolonged potentiation?The process by which synaptic connections between neurons strengthen with repeated activation is known as long-term potentiation, or LTP. According to some theories, LTP is a process by which the brain adapts to experience; as a result, it might be a mechanism underlying learning and memory.
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Control of glands and the muscles of internal organs is a function of the __________ nervous system. a. parasympathetic b. somatic c. peripheral d. autonomic please select the best answer from the choices provided a b c d
answer should be D: autonomic
Answer: D
Explanation:
Using anabolic-androgenic steroids can cause? a. stronger ligaments. b. higher sperm counts. c. unnatural muscle growth. d. decreased risk of cancer.
Using anabolic-androgenic steroids can cause unnatural muscle growth and is therefore denoted as option C.
What is Anabolic-androgenic steroids?
These are referred to as steroidal androgens which include natural androgens such as testosterone and they are responsible for certain biochemical activities in the body.
The testosterone when in large quantities increases muscle mass by increasing muscle protein synthesis and may sometimes cause infertility in men which can be reversed through the required medications.
The increased muscle protein synthesis is what leads to unnatural muscle growth which is therefore the reason why option C was chosen as the most appropriate choice.
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What do scientists do to test the way one variable affects another?
A single independent variable can be used.
In a controlled experiment, you alter one factor (an independent variable) and track the effects it has on additional factors (dependent variable).You plan an inquiry for a controlled experiment based on background research and your hypothesis.Conducting at least 5 trials for each level of your independent variable is a good strategy to increase your confidence in your findings.Variables are elements that can alter in an experiment. Independent, dependent, and controlled variables are the three different categories of variables used in scientific experiments. The scientist makes systematic modifications to the independent variable and monitors how these changes affect the dependent variable.Because the experiment is set up to maintain the other variables at a constant value, or "controlling" a variable, they are referred to as controlled variables. There should be just one independent variable in a proper experiment.Therefore, controlled experiment with single variable can be used.
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Which layer of the atmosphere holds the ozone layer?
Answer here
__________
Answer:the stratosphere
Explanation:
Answer:
The ozone layer is one layer of the stratosphere, the second layer of the Earth's atmosphere