Answer:
Golgi apparatus
Explanation:
Lysosome enzymes are made by proteins from the endoplasmic reticulum and enclosed within vesicles by the Golgi apparatus. Lysosomes are formed by budding from the Golgi complex.
Question 7 of 10
Society has changed its view on the widespread use of DDT since the 1950s.
Which statement best describes what caused this change?
OA. Government funding for DDT use was reduced.
B. Engineers developed ways to make pesticides that were less
expensive.
C. Society was no longer worried about mosquito-borne illnesses.
D. Scientific research showed negative impacts of DDT on the
environment.
Option D Scientific research showed negative impacts of DDT on the
environment is the correct answer of the given statement.
What are the effects of DDT?DDT exposure at low ambient concentrations may have unclear consequences on human health. Human symptoms after exposure to large levels may include nausea, tremors or shakiness, and seizures. The liver and reproductive were affected, according to laboratory animal research. DDT is thought to be a potential human carcinogen.
What is DDT and why was it banned?DDT, often known as dichlorodiphenyltrichloroethane, is a pesticide used in farming. DDT usage was outlawed in the US in 1972. DDT is still used in several non-American nations to keep mosquitoes that cause malaria at bay.
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Which cell structure is an important component in modern genetic engineering techniques?
a) ribosomes capsules
b) plasmids inclusions
c) mesosomes
Why was it important in the methodology of the messelson-stahl experiment that they used 15n?
Meselson-Stahl performed experiment that research about how DNA replicates and for this they provide a basis for the genetic phenomena of heredity and diseases.
They used two isotopes of nitrogen 14n and 15n because nitrogen is the major and basic constituents of DNA. They use 15n because it is the most abundant isotope of nitrogen and DNA is more functional with the heavier isotope 15n.
When the DNA sample is adding the bacteria to nitrogen-14 and by centrifugation in CsCl, then the DNA contain 15n form a single band low in tube.
Heredity is the passing of any physical character genetically from one generation to another.
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Characteristics such as race, religion, national origin, or sex, which are protected by government assurances of civil rights, are called:_______
Characteristics such as race, religion, national origin, or sex, which are protected by government assurances of civil rights, are called inherent characteristics.
inherent characteristics are something that a person have acquired from inherently since his or her birth. It can be race, religion, national origin, sex, etc.
Civil rights are the personal rights that are guaranteed by the government of america to its citizens. It is protected by US constitution as well as by the various laws enacted by the congress like Americans with disabilities act of 1990, civil rights act of 1964.
Civil rights movement occurred in 1950-60s led by Martin luther, Malcolm X, Little rocky, etc.
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Which statements describe scientific laws but not theories or hypothesis?check all that apply
They don't offer justifications for why they are accurate. They are regarded as established facts.
A theory essentially means the opposite. A well-supported explanation of a phenomenon in the natural world, including laws, hypotheses, and facts, is called a theory.A hypothesis is a statement about the natural world that can be verified by observations or tests. Hypotheses must be falsifiable—that is, they must be formulated in a fashion that allows them to be disproven—and be evaluated scientifically in order to be considered to be true.Scientific laws or laws of science are propositions that describe or forecast a variety of natural occurrences and are based on repeated tests or observations.Scientific rules condense the findings of tests or observations, typically within a specific applicability range. The accuracy of a law typically does not change when a new theory of the relevant phenomenon is developed; rather, the law's application area expands because the mathematics or statement that represents the law remains constant.Therefore, scientific laws, theory, and hypothesis are different aspects of Science.
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A urinalysis is done on a client in her third trimester. which result would be considered abnormal?
A urinalysis is done on a client in her third trimester. Vaginal discharge would be considered abnormal.
A urinalysis involves examining the colour, consistency, and composition of urine. Results of a urinalysis that are abnormal may indicate a disease or illness. For instance, an infection of the urinary tract might cause urine to appear hazy rather than clear. Urinary protein levels that are higher than normal may indicate renal disease.
A urinalysis, commonly referred to as a urine test, analyses the physical, chemical, and microscopic components of your urine (pee). It may consist of a variety of tests that use a single urine sample to identify and quantify different substances that travel through your urine.
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What tissue acts as a firm, protective packing around and between organs, bundles of muscle fibers, and nerves?
The Adipose tissue acts as a firm, protective packing around and between organs, bundles of muscle fibers, and nerves. Adipose tissue serves as a key metabolic component in the control of whole body energy homeostasis. While the brown adipose tissue stores lipids for cold-induced adaptive thermogenesis.
Other organs use the white adipose tissue as a vital energy source. In addition to protecting the body from the cold and the heat, cushioning sensitive organs, and secreting hormones and biological chemicals, its main job is to store energy. On the other side, neonates and foetuses tend to have more brown adipose tissues.
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Imagine a person ingests some food that causes them to become ill and have symptoms such as a diarrhea and fever. what kind of pathogenic bacterial poison could the person have been exposed to?
It might be a case of food poisoning caused by bacteria like E.coli.
A disease called food poisoning caused by eating spoiled food. Most people recover within a few days without treatment and are usually not dangerous. Food is usually contaminated with bacteria such as salmonella and E. coli, or viruses such as norovirus in the case of food poisoning. Symptoms of food poisoning usually appear 1 to 2 days after eating contaminated food. It can occur after a few weeks. Rest and hydration are recommended until you feel better to avoid dehydration. Make sure you drink enough water, even if you can only swallow it. Eat whenever you feel hungry, but start with small, light meals.
Therefore, E.coli causes food poisoning in the patient.
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Which solution is most acidic?
A.pH=3
B.pH=7
C.pH=10
D.pH=14
Answer: A
Explanation: The lower pH is higher acidity, and 3 is the lowest so it is the most acidic.
They found that some mutations that each produced ____________ phenotypes separately yielded ____________ phenotypes when present together in the same dna.
They found that some mutations that each produced mutant phenotypes separately yielded wild-type phenotypes when present together in the same DNA.
A mutation is a change in the nucleic acid sequence of an organism's genome, a virus' genome, or extrachromosomal DNA. DNA or RNA can be found in the viral genome. Errors that occur during mitosis, meiosis, or viral replication led to mutations. The term phenotype refers to all of an organism's observable traits that emerge from the interplay of its genotype (total genetic inheritance) and environment or mutation.
There are two different sorts of phenotypes: wild type and mutant phenotype. Wild type refers to people who have the normal phenotype that the bulk of the natural population possesses, whereas mutant refers to people who have a phenotype that differs from the normal population.
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Which tissue type would likely function to hold the kidneys in place?
a) dense regular
b) smooth muscle
c) adipose reticular
In addition to being surrounded by a thick layer of adipose tissue known as perirenal fat that helps to protect it, each kidney is held in place by connective tissue known as renal fascia."
The control of the body's overall energy homeostasis involves the adipose tissue, a key metabolic organ. The white adipose tissue serves as a vital energy source for other organs, but the brown adipose tissue stores lipids for cold-induced adaptive thermogenesis." White adipose tissue (WAT) and brown adipose tissue (BAT), which may be seen distinguished depending on tissue color, have historically been considered two different forms of adipose tissue. These depots' white and brown adipocytes display physiological variances that give birth to distinct tissue functions. The primary function is to store energy, but it also protects the body from cold and heat, cushions sensitive organs, and secretes hormones and biological substances. Brown adipose tissue, on the other hand, is primarily found in fetuses and newborns.
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The most radiosensitive period during pregnancy for radiation induced congenital abnormalities is during the _____________________.
The first trimester of pregnancy is the most radiosensitive time for radiation-induced congenital abnormalities.
An abnormality that is present at birth is what?A structural or functional anomaly that develops intrauterinally is referred to as a congenital anomaly. These illnesses, which are also known as birth defects, congenital disorders, or congenital abnormalities, arise during pregnancy and can be diagnosed before or at delivery as well as later in life.What common anomalies of birth are there?Down syndrome, neural tube problems, and heart defects are the most prevalent serious birth disorders. The precise causes of birth malformations are frequently difficult to pinpoint, even if they may be due to one or more genetic, viral, dietary, or environmental factors.
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#1: What is the relationship between the mass of prey, kill of pray, and the total energy available per kill
#2: Explain why you think this relationship exist
The relationship that between the mass of prey, kill of prey, and the total energy available per kill is that their value decreases along the way to the predator.
What are predator-prey relationships?Predator-prey relationships are food relationships that exists between two organisms where one organisms kills and eats another for food.
An example of a predator-prey relationship is the relationship between the lion and the zebra.
In a predator-prey relationship;
the predator is the organism which kills and eats another organism for foodthe prey is the organism which is killed for foodthe number of prey exceeds the predatorthe energy obtained by the predator by killing the prey is less than the total energy available from the preyIn conclusion, a predator-prey relationship exists when one organisms kills and eats another for food.
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The neurologist is conducting a tensilon test at the bedside of a patient who is experiencing?
The neurologist is conducting a Tensilon test (Edrophonium) at the bedside of a patient who is experiencing unexplained muscle weakness, double vision, difficulty breathing, and ptosis.
What is a neurologist?The area of medicine known as neurology is dedicated to understanding and treating nervous system problems. The nervous system controls and synchronizes bodily functions in a sophisticated and complicated manner. There are two main divisions:
The brain and spinal cord are parts of the central nervous system.Eyes, ears, skin, and other "sensory receptors" are examples of peripheral nervous system components.A neurologist is a medical professional with expertise in neurology. A neurologist addresses conditions that impact the nerves, spinal cord, and brain.
Therefore, the patient will be experiencing unexplained muscle weakness, double vision, difficulty breathing, and ptosis.
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Which vertebrae type is characterized by a large size and wide, kidney-shaped body?.
Answer:
The lumbar vertebrae is characterized by a large size and wide, kidney-shaped body.
Explanation:
The vertebral column is formed of four different types of vertebrae: the cervical vertebrae, the thoracic vertebrae, the lumbar vertebrae, and the sacrococcygeal vertebrae, in order from head to hip.
cervical vertebrae They generally have a smaller body and larger vertebral foramen, and are known as the smallest types of vertebrae. Their spinous process is bifid, meaning that the spinous processes are divided into two segments. In the cervical vertebrae, the two segments are unequal.
The thoracic portion of the body contains the rib cage, also the thoracic vertebrae too have undergone a modest alteration to allow for this.
The sacrococcygeal area, which includes the sacrum as well as the coccyx, is frequently examined in connection. The sacrum is typically short and broad in females while it is lengthy and narrow in men. The tail's last remaining piece is the coccyx.
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The zygote divides and implants into the wall of the uterus during which stage of prenatal development?
Germinal stage
The zygote divides and implants into the wall of the uterus during germinal stage of prenatal development.
What happens during germinal stage?When sperm and egg unite to create a zygote during conception, the germinal stage of pregnancy begins. During the germinal stage, the zygote begins to divide in order to be implanted into the uterine wall.After implantation, the embryonic stage starts.What traits define the germinal stage?activities throughout the germinal stage. An egg and sperm are converted into a zygote and then an embryo during the germinal stage using a variety of processes.Implantation, blastulation, cleavage, and fertilization are among the operations.How long does the initial stage last?The germinal phase lasts for approximately 14 days from conception to zygote (fertilized egg) implantation in the uterine lining.To learn more about prenatal development visit:
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Which cellular structure is associated with eukaryotic cells but not with prokaryotic cells?
Answer:
membrane-bound nucleus
Explanation:
membrane-bound nucleus
A product of the oxidation of odd-chain fatty acids, ____, is converted to ____ and enters the ____ cycle.
A product of the oxidation of odd-chain fatty acids, Propionyl-CoA, is converted to succinyl-CoA and enters the citric acid cycle.
What is oxidation ?Redox reactions involve a change in the oxidation state of the substrate. Oxidation is the process of losing electrons or increasing an element's oxidation state. Reduction can occur when an element or one of its constituent atoms gains electrons or has their oxidation status decreased.
When an object comes into touch with oxygen or another oxidizer, a chemical reaction occurs. Rust and the brown color of a sliced apple are both examples of oxidation.
How is oxidation occur ?When an atom, molecule, or ion loses one or more electrons during a chemical reaction, oxidation takes place. The chemical species' oxidation state increases while oxidation takes place. Oxygen is not always necessary for oxidation to occur. The phrase was initially used when oxygen produced an electron loss during a process.
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How could scientists use radioisotopes to study the function of the golgi apparatus?.
Scientists could use radioisotopes to study the function of the Golgi apparatus by tracking the radiolabelled sugars which are attached to the proteins within the Golgi apparatus.
Radioisotopes of radiolabelled sugars are attached to proteins within the Golgi apparatus and are used for their study of function and it is a membrane-bound organelle found in eukaryotes. It is made up of flattened, stacked pouches called cisternae. Proteins and lipids are moved, altered, and packaged into vesicles by the Golgi apparatus and delivered to specific locations. It is situated close to the cell nucleus and the endoplasmic reticulum in the cytoplasm.
In an experiment to determine the route secreted proteins follow, radioactively labeled amino acids are added to a growing culture of cells involved in protein synthesis. The secretory vesicles received the radiolabeled proteins from the Golgi apparatus, which then moved there and joined with the plasma membrane to release them outside the cell.
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How do we prevent the extinction of certain animals?
Answer:
by controlling climate change
Explanation:
If we stop climate change, the trees won't be dried meaning no wild fires.
Damaged tissues are normally repaired through replacement of damaged or dead cells through a process called fibrosis. True or false?.
Damaged tissues are normally repaired through replacement of damaged or dead cells through a process called regeneration, hence, it is false.
Damage to tissues can occur internally or externally. When this occurs, a series of events called tissue repair are set in motion to contain the damage and initiate the healing process. One of these processes is called regeneration.
When the body replaces damaged or dead cells using cells of the same type, it is called regeneration. This occurs in most skin injuries like cuts, minor burns or scrapes and often doesn't leave any major scar. The internal organ that regenerates outstandingly well is the liver. Since the same type of cells are used during regeneration, the normal function of the organ is restored after regeneration.
Fibrosis occurs only when the damage done to the organ or tissue is excessive. Scar tissue called fibroblasts are deposited forming scar tissue to hold the organ or tissue together.
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In pollen development in flowering plants, a haploid microspore produced via meiosis.
Answer:
Undergoes mitosis to produce a 2 celled pollen grain
Explanation:
In cell biology, the process of mitosis, through which replicated chromosomes get divided into 2 new nuclei, is indeed a stage of the cell cycle. A mechanism of cell division creates genetically similar cells with a constant number of chromosomes is known as mitosis. Thus, the equational division is another name for mitosis. Generally, the S phase during interphase, which happens when DNA replication takes place, comes before mitosis. Telophase and also cytokinesis, which splits a cell's cytoplasm, and organelles, including cell membrane to form 2 new cells with nearly equal amounts of these biological components, frequently follow. The dividing of the mother cell producing 2 genetically similar daughter cells, or the mitotic (M) stage of the animal cell cycle, is defined by the several stages of mitosis taken collectively.
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Small inputs of this substance, commonly a limiting factor in aquatic ecosystems, can result in algal blooms and dead zones.
Small inputs of this phosphorous commonly a limiting factor in aquatic ecosystems, can result in algal blooms and dead zones
Phosphorus is the mineral that makes up the 1% of the person's total body weight. It is actually the second most abundant mineral in the body. It is also present in the every cell of the body. Most of the phosphorus in the body is also found in the bones and in the teeth. Phosphorus is the chemical element with the symbol of P and the atomic number 15. the Elemental phosphorus that exists in two major forms, white phosphorus and the red phosphorus, but this is because it is highly reactive, and phosphorus is never be found as the free element on the Earth.
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When the body's digestive system breaks down starch, a complex carbohydrate, into simpler carbohydrates, the reaction is:________
The reaction is catabolic. Catabolism is a series of metabolic pathways that break down molecules into smaller units, either oxidized to release energy or used in other anabolic reactions.
Among complex carbohydrates, starch serves as the main glucose storage molecule in plants. A large number of different glucose monomers combine to form starch and are linked by glycosidic bonds. An example of a catabolic reaction that releases chemical energy is the breakdown of starch, a complex carbohydrate, by the body's digestive system into simpler carbohydrates. C. Catabolic, which causes the release of energy, is the correct response. The anabolic process is incorrect because an anabolic reaction involves the synthesis of less complex monomers into more complex monomers. Catabolic processes also lack the ability to store energy.Therefore, catabolic reaction is the correct answer.
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Lu is from korea and pedro is from ecuador. lu and pedro share what percentage of their genes?
Lu and Pedro share 99.7 percentage of their genes,
Gene- The fundamental structural and operational component of heredity is a gene. DNA is the component of genes. Some genes serve as blueprints for the synthesis of proteins. Many genes do not, however, code for proteins. A few hundred DNA bases to more than 2 million bases make up a gene in a person.
Heredity- The whole of biological mechanisms via which certain traits are passed down from one generation to the next.
DNA- The molecule found inside cells that carries the genetic material necessary for an organism to grow and operate. This knowledge may be handed on from one generation to the next thanks to DNA molecules.
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1. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as blank, blank, and blank.
Hardwoods reproduce using flowers and have broad leaves, hardwood include tree such as maple, elm and mango.
The deciduous trees that lose their leaves seasonally those trees are maple and elm. These are those plants which shows a great variety of size, form and foliage. Maple plants bear pairs of winged that is called as samaras.
Elm plant have doubly toothed and lopsided at base. It also surrounded by a flat, hairy and wing like structure that is called as samara.
Lopsided is the stage of plant in which one side is lower and smaller than the other side.
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When two species compete, the niche that each species ultimately occupies is its?
When two species compete, the niche that each species ultimately occupies is its realized niche.
Niche is the functional area of a species. This is the region where an organism actually lives, interacts with its biotic and abiotic factors and most importantly reproduces. Niche is a smaller part of the large habitat. Niche is of two types: Fundamental niche and realized niche.
Realized niche is the niche which an organism lives in due to restrictions. This restriction is usually in terms of competition with another species. Realized niche is the real-world phenomenon. Realized niche can be smaller than or equal to fundamental niche, but it can never be larger.
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The molecular mass of propanoic acid is 74.1 amu . calculate the molecular mass of methyl ethanoate, an isomer of propanoic acid. express your answer with the appropriate units.
The structures of propanoic acid and methyl ethanoate are as follow below:
Formula Weight:74.07854
Formula Weight: methyl ethanoate
Molecular Formula: C3H2O2
They have same molecular formula C3H602; thus they are isomers and isomers have same molar mass also. Hence the molar mass of methyl ethanoate is 74.1 amu.
Are methyl ethanoate and propanoic acid isomers?An atom or group of atoms that gives the chemical its distinctive features is known as a functional group. For instance, the hydroxyl group is the functional group in ethanol (-OH). In contrast to its parent hydrocarbon, ethane, which is a gas and insoluble in water, ethanol is a liquid and soluble in water because of its functional group.
Compounds with distinct functional groups but the same chemical formula are known as functional group isomers. Methyl ethanoate and propanoic acid are functional group isomers.
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Based on its function in detoxifying drugs and alcohol, one would expect to find a large amount of smooth endoplasmic reticulum (ser) in ________ cells.
Based on its function in detoxifying drugs and alcohol, one would expect to find a large amount of smooth endoplasmic reticulum (ser) in liver cells.
What is endoplasmic reticulum (ER) ?In essence, the endoplasmic reticulum serves as the eukaryotic cell's transportation system in addition to performing numerous other critical tasks including folding proteins. Rough and smooth endoplasmic reticulum make up the two components that make up this particular sort of organelle.
The function of a endoplasmic reticulumIn general, the endoplasmic reticulum's job is to make proteins so that the remainder of the cell can operate. It can be smooth or rough. Ribosomes, which are tiny, elongated organelles with a round shape, are found on the rough endoplasmic reticulum and are responsible for producing those proteins.
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The value that stays the same as long as there are no signals in the neuron is known as?
The value that stays the same as long as there are no signals in the neuron is known as resting potential.
Neurons are the nerve cells. These are the longest cell in the human body. The structure of a neuron comprises of a cell body from which arise the various branch-like extensions called the dendrites. From one end emerges the axon that ends at the axon terminal.
Resting potential is the potential difference of ions across the plasma membrane when the cell is resting and no nerve impulse is being conducted. The value of resting potential is approximately -70 mV in majority of the neurons.
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