The nucleus shows up as a dark spot in the centre of each cheek cell.
The nucleus is housed in the cytoplasm of a cell; an environment that house the cell functional organelles. The function of the nucleus is to organize DNA into chromosomes via three basic steps known as replication, transcription and translation. The nucleus is surrounded by the nucleoli; a more darkly pigmented spherical structure and a nuclear envelope a double membrane (inner and outer membrane).
The surrounding environment of the nucleus (nucleoli and nuclear envelope) are the site for ribosome assemblage. In cells that produces a large amount of protein, it is easy to site the nucleoli. Cells are either uninuclear or multinuclear that is containing one or more nucleus. The red blood cell is an example of a uninuclear cells while cells in the skeletal muscle are example of multinuclear cells
Elodea's flat, cuboidal leaf cells include a large central vacuole that is encircled by a thin coating of cytoplasm.
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Chondrocytes are to cartilage as osteocytes are to:_____.
a. blood.
b. bone.
c. fat.
d. skin.
Chondrocytes are to cartilage as osteocytes are to bone.
Division of fishesFishes are divided into three major groups. These are:
AgnathaChondrocytes OsteocytesAgnathas are fishes without jaws, such as lampreys and hagfish.
Chondrocytes are cartilaginous fishes. They include sharks and the giant sting ray.
Osteocytes are the bony fishes. They include tilapia and other fishes that have bones as opposed to cartilage.
Thus, Chondrocytes are to cartilage as osteocytes are to bones.
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The lowest salinity in the ocean occurs near the equator, where precipitation exceeds evaporation and the ________ biome is located?
desert
The lowest salinity in the ocean occurs near the equator, where precipitation exceeds evaporation and the desert biome is located
Water is lost by evaporation, which makes the remaining water saltier.precipitation ( which adds fresh water, thereby diluting the seawater and making it less salty)fresh (river) water influx ( which makes the seawater freezes, salts are excluded from the ice, leaving the unfrozen seawater saltier)the sea ice freezing and melting. (Salts are left out of the ice when seawater freezes, making the unfrozen seawater saltier.)Salinity is high where the world's great deserts are located. In certain regions, both on land and at sea, evaporation outpaces precipitation. Surface salinity surpasses the typical range in a confined sea, such as the Mediterranean, where there is little input of fresh water.Near the equator, there is less evaporation due to high precipitation and cold water rising from the deep sea and moving westward in the tropical eastern pacific and eastern Atlantic oceans.To learn more about biomes visit:
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To cuvier, the differences in fossils from different strata were evidence for __________.
Local catastrophic events, Cuvier was the first to show that. The differences in fossils from different strata were evidence for local catastrophic events such as droughts or floods.
What is strata?Strata, the plural of the Latin term stratum, is another name for rock layers, and stratigraphy is the study of strata. Stratigraphy is the study of the features of stratified rocks, including their relationship to time.
According to the fossil correlation concept, strata that include certain fossils are also the same age since like assemblages of fossils have the same age.
As a result, fossils are highly helpful in correlating, or matching up, rock strata in exposures that are spread apart widely.
Therefore, Local catastrophic event's evidence for differences in fossils from different strata.
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What kind of fat wreaks havoc on your metabolic processes and puts you on the path to disease?
Visceral fat that wreaks havoc on your metabolic processes and puts you on the path to disease. It wraps around your abdominal organs deep inside your body.
A healthful quantity of visceral fats withinside the common individual is round 10%. A lady with a waist dimension of extra than 35 inches and a person who has a waist larger than forty inches are in all likelihood to have extra visceral fats. Regular cardio exercising is a extremely good manner to shed visceral fats. It's usually called cardio, and it burns a variety of calories.
In fact, many research have proven that cardio exercising will let you lose visceral fats, even with out dieting.visceral fats appears to be bad diet, especially one it's excessive in brought sugar and easy carbohydrates . That ends in weight benefit it's frequently tough to lose, especially with inside the belly area.
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Molluscs, such as clams, have mosaic cleavage. is it possible for molluscs, or any other animal with mosaic cleavage, to have monozygotic twins? explain.
Moluscs are unable to have monozygotic twins because they have a mosaic cleavage as their fate is predetermined and they don't develop into a new individual.
What are monozygotic twins?Identical twins are referred to described as such because of their identical appearance. However, "monozygotic" is a more precise phrase. Monozygotic twins have nearly identical genetic makeup.
When one sperm fertilizes just one egg, this kind of twin creation starts (oocyte). The cells of the fertilized egg (also known as a zygote) divide and expand into a blastocyst as it moves into the uterus. The blastocyst subsequently divides into two embryos in the case of monozygotic twins.
Monozygotic twins, to put it simply, are produced when a single fertilized egg splits into two. Two infants are then born from two embryos. The word used to describe this procedure is monozygotic ("mono" means one and "zygote" denotes fertilized egg).
Therefore, Moluscs cannot form monozygotic twins.
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Calculate the carrying capacity for this deer population based off the information given on this chart.
Thank you
Answer:
too small
Explanation:
Which type of consumer does photosynthesis: heterotrophs or autotrophs?
Answer:
Explanation:
Another major difference between autotrophs and heterotrophs is that autotrophs have an important pigment called chlorophyll, which enables them to capture the energy of sunlight during photosynthesis, whereas heterotrophs do not.
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The thread-like of the stamen is the (A. anther, B.stigma, C.filament, D.style).
Filaments are the thread like structure of the stamen.
Answer:
Its C.Filament
Explanation:
The stamen has 2 parts. Anthers & Filaments. Anthers are held up by a thread-like part called a filament. so the final answer would be C.
The _____ are receptors in the retina that function especially well in low-light conditions and are everywhere in the retina except for the fovea.
All of the following are characteristics of viruses except :________
a) definite shape.
b) metabolism.
c) genes.
d) ability to infect host cells.
e) ultramicroscopic size.
Answer:
B. Metabolism
Explanation:
Viruses cannot make food, take in food, or produce waste
All of the characteristics listed are true for viruses except for b) metabolism.
What is a virus?A virus is a non-living infectious agent that can only replicate inside the host cell. They are extremely small and can only be seen under an electron microscope. Viruses are composed of genetic material (DNA or RNA) enclosed in a protective protein coat called the capsid. They do not have the ability to replicate or survive on their own and rely on host cells to provide the necessary metabolic machinery to replicate
Viruses are ultramicroscopic in size and do not have a definite shape. Viruses also infect host cells and utilize the host's metabolic machinery for replication. Viruses lack a metabolism of their own, and are thus not considered living organisms.
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Chymotrypsin is used for:__________
reduction of disulfide bonds between cysteine residues.
amino-terminal determination.
Chymotrypsin is used for polypeptide cleavage on the C side of Trp, Tyr or Phe.
What is Chymotrypsin?Other proteins' aromatic C-terminal amino acids are hydrolyzed by it using an active serine residue. The protease enzyme chymotrypsin cleaves peptide chains at the C-terminal phenylalanine (F), tryptophan (W), and tyrosine (Y) residues.
Since the 1960s, chymotrypsin has been used in clinical settings as an oral proteolytic enzyme preparation. In comparison to a few other enzyme preparations currently on the market, it offers better inflammatory symptom relief and supports a quicker recovery from acute tissue injury.
The inactive monomeric protein chymotrypsinogen, which is produced and secreted by mammalian pancreas, is broken down into chymotrypsin by cleavage of several peptide bonds. As a result, three different polypeptide chains that make up the active enzyme were created.
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Suppose separate gene knockouts do not produce any phenotypic effects but combining the two gene knockouts in one organism shows a difference in phenotype. what is the most likely explanation?
The most likely explanation for this circumstance is Gene redundancy.
What is Gene knockout?Gene knockout may be defined as a type of genetic technique through which a specific gene from living organisms is eliminated or removed. Apart from this, the function of a specific gene is also terminated with this technique.
Gene redundancy may be characterized as an instance through which two or more genes perform an identical function and the inactivation of either one of them has little or no effect on the biological phenotype or pathway.
Therefore, gene redundancy is the most likely explanation for the given circumstance.
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What is an Hypothesis
What are the monomers that
make up DNA?
A. amino acids
B. nucleotides
C. polypeptides
Answer:
I think it is B, nucleotides
When you use the higher magnifications on the microscope, focal adjustments should be made using the?
the higher magnifications on the microscope, focal adjustments should be made using the fine focus knob
What is magnification?
Magnification is the process of enlarging something's apparent size rather than its actual size. This enlargement is measured in terms of a calculated quantity known as "magnification." The term "minification" or "de-magnification" is frequently used to describe a reduction in size when this number is less than one.
Magnification frequently refers to enlarging graphics or images to view more detail, boosting resolution, using a microscope, printing methods, or digital processing. The viewpoint of the image is unaffected by image magnification in every situation.
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The binding of a molecule to a cell-surface receptor may result in the activation of another molecule within the cell which, in turn, causes an alteration in cell function. What is this molecule within the cell called?.
Adjacent cells cling to one another with the aid of cell adhesion molecules, which are present on the cell surface. When a chemical binds to a cell-surface receptor, it may stimulate another molecule inside the cell to become active, which changes how the cell functions.
What function does a cell serve?From bacteria to humans, cells give all living things their structure and functionality. They are regarded as the tiniest form of life by scientists. The cell membrane, the nucleus, and the cytoplasm are the three components that make up a cell. Intricate arrangements of microscopic fibres and hundreds or even thousands of tiny, unique structures known as organelles can be found in the cytoplasm.
The biological machinery that creates the proteins, chemicals, and signals necessary for every process in our body is housed within cells.
The interior of the cell is divided into many organelles that are each surrounded by a distinct membrane. The genetic material required for cell growth and reproduction is stored in the nucleus, a primary organelle. Each cell has a single nucleus and cytoplasmic organelles that are membrane-bound.
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The most numerous of the leukocytes is the __________.
a) basophil
b) monocyte
c) eosinophil
d) neutrophil
e) lymphocyte
Answer:
D. neutrophil
Explanation:
because they are phagocytic and have light colored granules
In response to the presence of endotoxin, macrophages will secrete il-1 (interleukin-1). this causes?
In response to the presence of endotoxin, macrophages will secrete IL-1 (interleukin-1). this causes inflammatory responses.
Interleukin-1 is a regulator of inflammatory responses. it produced effects of innate immunity. In process of activating the immune system and protecting the organism from foreign invaders, the inflammatory responses are generated like fever, pain, swelling, etc.
Inflammatory responses are the reactions generated by the body when the immune system tries to protect the body. The various inflammatory responses are: pain, swelling, generation of heat on the affected area, or redness. This happens due to the accumulation pf various immune cells at the target site.
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What was done to overcome the problem of the MSL landing?
Answer:
engineers designed the assembly to cut off the parachute, and use rockets for the final part of the landing sequence
Explanation:
space.com
Answer: "A parachute was used"
To solve the problem, engineers designed the assembly to cut off the parachute, and use rockets for the final part of the landing sequence. About 60 feet (18 m) above the surface, MSL's "sky crane" deployed. The landing assembly dangled the rover below the rockets using a 20-foot (6 m) tether.
Explanation:
hope this helps
Tempo is the rhythm with which the load is moved during a repetition, and affects which metric?
Tempo is the rhythm with which the weight is moved at some point of repetition and influences the intensity. Rhythm is the sample of sound, silence, and emphasis in a song. performed, musical rhythm additionally stipulates how lengthy they may be performed and with what intensity.
Metric modulation is a extrade in pulse rate (tempo) and/or pulse grouping (subdivision) that's derived from a notice cost or grouping heard earlier than the extrade.
Examples of metric modulation can also additionally encompass adjustments in time signature throughout an unchanging tempo, however the idea applies extra in particular to shifts from one time signature/tempo (metre) to another, in which a notice cost from the primary is made equal to a notice cost with inside the second, like a pivot or bridge.
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What is a category of ai that attempts to emulate the way the human brain works?
Category of AI that attempts to emulate the way the human brain works neural network.
A neural network is a biological neural network made up of biological neurons or an artificial neural network used to solve artificial intelligence (AI) problems.
Artificial neural networks model biological neuron connections as weights between nodes. An excitatory link is represented by a positive weight, whereas an inhibitory connection is represented by a negative weight. Each input is given a weight before being added together.
These artificial networks can be applied to adaptive control, predictive modelling, and other tasks where a dataset can be utilised to train them.
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WARM-UP
Where did we come from? Are we alone in the
Universe? Expound your answer.
Answer:
Humans originated from Africa around 200,000 - 2 million years ago. There is fossilized evidence from back then that tells us when we humans may have formed. We went through about 15 different evolutions until coming to what we are today. To answer your other question, no, we are not alone in the universe, because we are united with many other organisms and life forms that live alongside us.
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The class of lipid that is derived from fatty acids and that alters blood pressure by its action on arterial smooth muscle cells is?
Prostaglandins are a class of lipid produced from fatty acids that affect arterial smooth muscle cells to change blood pressure.
What function do prostaglandins serve in inflammation?Lipid acetateoids called prostaglandins are produced from arachidonic acid.They both support homeostatic processes and control pathogenic processes, such as the inflammatory reaction.Inflammation, which is accompanied by the signs of redness, swelling, pain, and fever, is brought on by the high amounts of prostaglandins that are created in response to injury or infection. This plays a crucial role in the body's typical healing process.What cause prostaglandins?Prostaglandins cause the muscles in your uterus to contract during your menstruation. These contractions aid in the uterine lining's removal.Prostaglandin levels can make period cramps worse, and hard contractions can narrow the blood arteries surrounding the uterus.
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Please help asap i need HELP ☹
Answer:
300 m³
Explanation:
Given that,
→ L = 12 m
→ W = 5 m
→ H = 5 m
The formula we use,
→ V = L × W × H
Now the volume of swimming pool is,
→ L × W × H
→ 12 × 5 × 5
→ 12 × 25
→ 300 m³
Hence, the volume is 300 m³.
List and describe the 5 cutaneous glands of the integumentary system. be sure to include distribution of each (where they are found on the body).
There are five distinct cutaneous glands of the integumentary system:
1. The body contains several merocrine sweat glands, which are responsible for controlling body temperature by secreting fluids.
2. In the pubic region and axilla are apocrine sweat glands.
3. Sebaceous glands release an oily substance called sebum that shields the skin from corrosive bacteria and inhibits fluid loss.
4. Ceruminous glands, which are remodeled apocrine sweat glands, are located in the external ear canal's lining.
5. Humans and other species' breasts have mammary glands
The integumentary system is composed of five components: skin, hair, nails, glands, and nerves.
Integumentary system:
Your body's outermost layer is called the integumentary system. Your skin, hair, nails, and glands make up your body. These systems and parts serve as your body's initial line of defense against microorganisms as well as your defense against harm and the sun. Your body's integumentary system collaborates with other bodily systems to maintain balance.
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PLEASE HELP ASAPP. WILL GIVE BRAINLIEST AND 5 STAR RATIBG
Answer: mass
Explanation:
there is nothing about material to heat. mixture, depends, it has to be a specific situation. heat does contain mass though.
Which of these provides your body with energy? minerals fats oxygen vitamins light
Our body gets energy from fats among the following options.
Our body uses glucose as its main energy source. Other sources of energy contain proteins as well as lipids.
To maintain the body's essential functions, very little in the way of minerals is needed.
In the process of respiration, oxygen is crucial. Energy must be released in order for glucose to also break down.
Vitamins are essential for functioning like fighting infection, wound healing, making our bones strong and regulating hormones.
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What organelle consists of a series of connected spaces termed cisternae and is extremely embedded with ribosomes?
The organelle consists of a series of connected spaces termed cisternae and is extremely embedded with ribosomes are endoplasmic reticulum.
The endoplasmic reticulum is an important membrane bound organelle that have functions of protein folding and transportation.
It can be divided into two types- smooth endoplasmic reticulum and rough endoplasmic reticulum. The smooth ER is associated with formation and transportation of lipids.
The rough ER is associated with formation and transportation of proteins and have ribosomes in its surface that gives the rough appearance.
It consist of series of connected space called cisternae which have integral role in packaging and modification of protein and lipids. It is flattened tube like apparatus.
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17. Epithelium exhibits many plasma membrane modifications. Figure 3-7 depicts
some of these modifications.
First: Choose a color for the coding circles and the corresponding structures
in the figure.
O Epithelial cell cytoplasm
Epithelial cell nucleus
Nerve fibers
Connective tissue
Blood vessel
During fetal development the primary site(s) of red blood cell production is/are?
The yolk sac is the primary site for the production of red blood cells in the first 6 to eight weeks of gestation.
What is the yolk sac?The yolk sac is a tiny, external, membrane organ that serves a number of purposes during embryonic development. It connects to the growing embryo ventrally by the yolk stalk. The terms vitelline duct and omphalomesenteric duct are interchangeable when referring to the yolk stalk.
The midgut, an early ancestor of the gastrointestinal system, is connected to the yolk sac by the yolk stalk. The yolk sac and midgut are both endodermal organs. Several crucial biological processes, such as the development of germ cells and early hematopoiesis, are carried out by the yolk sac in the early stages of pregnancy. Clinically, the yolk sac acts as a strong sonographic indicator of unfavorable pregnancy outcomes.
Therefore, the yolk sac is the primary site for RBC production during gestation.
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