Name 2 differences between plant and animal cells.

Answer:

I think it's D because I've done this already

Answer:

b

Explanation:

Answer:

Cholorophyll

Explanation:

Answer:

d

Explanation:

just took the quiz

Biology population studies are crucial for understanding the dynamics of populations in their natural environments.

Consisting of convenience, cluster, random, systematic, and stratified sampling methods. It's like pulling names out of a hat after everyone has put their names in it. Each element has an equal chance of showing up in the population.

By using sampling, researchers can draw conclusions about a population based on data from a sample of that group without than having to look at every single person.

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TRUE

BECAUSE THE SIZE OF THE CELL IS RELATED TO ITS FUNCTION.

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Answer:

For example, the nerve cells are elongated in shape and are thin and dainty. ... An animal cell does not have a cell wall

Explanation:

The size and shape of a cell are related to its function and are governed by four factors—(1) surface-volume ratio, (2) nucleocytoplasmic ratio, (3) rate of cellular activity, (4) cell associations. (1) Surface-volume Ratio: ADVERTISEMENTS: The cell membrane separates the inner content from the outer environment.

Direct communication between cells in contact with one another is accomplished through gap junctions.

Gap junctions are specialized intercellular channels that allow direct communication and exchange of ions, molecules, and electrical signals between adjacent cells. These channels are formed by connexin proteins, which create pores that connect the cytoplasm of neighboring cells.

Gap junctions play a crucial role in various physiological processes, including coordination of cell activities, electrical synchronization, and chemical signaling. They are particularly important in tissues that require rapid and synchronized communication, such as cardiac muscle and smooth muscle tissues.

Through gap junctions, cells can coordinate their activities, share small molecules like ions and metabolites, and propagate electrical signals, allowing for efficient and synchronized responses within tissues and organs. Therefore, direct communication between cells in contact with one another is accomplished through gap junctions.

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When faced with a threatening situation, the hypothalamus and lower brain structures activate the sympathetic nervous system, which leads to the secretion of catecholamines such as adrenaline and noradrenaline. The secretion of catecholamines prepares the body to respond to a threat by increasing energy and focus while inhibiting non-critical functions.

These catecholamines activate the "fight-or-flight" response. Adrenaline is a hormone secreted by the adrenal gland that is released into the bloodstream during times of stress. The hormone helps to increase heart rate and blood pressure, while also increasing blood sugar levels. This helps to provide energy to the body's muscles and organs, allowing them to perform at a higher level than normal.

The body's respiratory rate is also increased, allowing more oxygen to be delivered to the body's tissues. At the same time, the body's digestive processes are inhibited, allowing energy to be redirected towards more critical functions such as muscle contraction and brain function.

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The process of encasing axons in a layer of fat cells, which helps increase the speed and efficiency of information processing, is called myelination.

The neuron is also called the nerve cells which are the basic cells of the nervous system.

The neuron is made up of different parts which include the dendrites,cell body and axon.

The axon is cover by an insulated membrane called the myelin. This occurs through a process called myelination.

Myelination can otherwise be defined as the process by which brain oligodendrocytes produce layers of myelin that wrap around the axons.

The myelin helps to increase the speed and efficiency of information from the action potentials generated.

Therefore, myelination is the process of encasing axons in a layer of fat cells.

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Answer:

BR

Because the first letter comes first

During clonal selection, random mutations during clonal expansion induce the generation of B cells with an extended antibody-binding affinity for their antigens. The clonal selection theory may explain why secondary immune responses efficiently inhibit reinfection by the same pathogen.

The nervous system is a complex network of specialized cells and tissues that is responsible for controlling and coordinating many of the body's functions.

Sensory function: Nervous system receives information from internal and external environment and processes it to generate appropriate responses. For example, when you touch a hot stove, sensory receptors in your skin detect the heat and send signal to your brain, which processes the information and generates a response to move your hand away from stove.

Integrative function: Nervous system integrates and processes information from multiple sources to generate coordinated responses. For example, when you see ball coming towards you, your nervous system integrates information from your eyes, ears, and other sensory receptors to generates response to catch the ball.

Motor function: Nervous system generates and transmits signals that control the movement of muscles and other effectors in body. For example, when you want to move your arm, motor neurons in nervous system transmit signals to the muscles in your arm, causing them to contract and move the arm.

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A model to explain how the antibody therapy most likely interferes with the cell signaling pathway can be the high specificity of the proteins.

The proposed model to explain how the antibody therapy interferes with the cell signaling pathway is that the antibodies bind with high specificity to the extracellular portion of EGFR.

This binding blocks the ligand-binding sites on EGFR, preventing any extracellular ligands from attaching and activating it. As a result, downstream proteins in the signaling cascade that depend on EGFR activation are not activated and therefore cannot transmit a signal further into the cell.

One reason this therapy can be successful is that because EGFR over-expression occurs frequently in skin cancers, blocking its activity can be an effective way to reduce tumor growth.

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Option b is Correct. The roan cattle punnett square serves as an illustration of inheritance in which the dominant alleles of a heterozygote gene pair are completely expressed. Codominance is the term for this.

A mixture of the phenotypes of the parents can be found in the phenotype of the offspring. Codominance can be seen, for instance, in spotted cows and flowers with petals of two contrasting hues. Several less obvious features, such blood type, also exhibit codominance.

Blood of type AB is produced when both the A and B alleles for blood type are expressed. An illustration would be a red flower and a white bloom generating pink blossoms. When the phenotypes of the two parents are shared by the offspring, this is known as codominance. An illustration is a white blossom.

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Answer:

The correct answer is - closely related species.

Explanation:

If two species have similar gene sequences or nucleotide sequences with the same base pairs then it means they both are closely related and have diverged from a similar and latest ancestor.

The same gene sequence results in the same proteins that could result in the same phenotypic behavior. Such cases establish that both species are closely related and have recently diverged. These species must have a common ancestor.

Answer: The answer is attached with the image given below.

Explanation: The first diagram has the concentration of water molecules higher inside the cell than that of the surroundings, as a result, water molecules move outside the cell thereby causing the cell to shrivel.

The second diagram has a higher concentration of water molecules in the surrounding than inside the cell. As a result, the water molecules from outside will move inside the cell causing the cell to burst.

In the third diagram, the concentration of water molecules in the solution is the same as the inside of the cell. As a result, no net movement of water molecules occurs, causing no effect on the cell.

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the  dialysis tubing is used as a model for a cell membrane is because it has similar properties as the cell membrane, such as being selectively permeable.  involves a deeper explanation of the properties of dialysis tubing and how they relate to the cell membrane.

the cell membrane is made up of phospholipids, which also form a selectively permeable structure. The phospholipid bilayer allows for small molecules to pass through, while larger molecules are prevented from passing through without the help of specialized proteins. dialysis tubing serves as a useful model for the cell membrane as it exhibits the same properties of selective permeability and allows for scientists to study how different molecules pass through a membrane.

the tubing as a model for a cell membrane because it demonstrates selective permeability, allowing certain molecules to pass through while restricting others dialysis tubing is made of a semi-permeable material that simulates the phospholipid bilayer found in a  cell membrane. It allows small molecules, like water and some solutes, to diffuse across the membrane while preventing the passage of larger molecules, such as proteins and polysaccharides. This selective permeability is a crucial property of cell membranes, as it maintains the proper balance of nutrients and waste products within the cell and its surroundings. By using dialysis tubing in experiments, we can better understand the behavior and characteristics of cell membranes, and apply this knowledge to various fields, including biology and medicine.

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Clouds move faster on the Greenland regions as compared to equator.

The speed of cloud depends on the type of cloud and the wind flowing in that region. If the wind blows at higher rate and the cloud is lighter then the cloud will move with higher speed.

While on the other hand, more heavy cloud and low speed of wind leads to the lower speed of cloud in that region so we can conclude that wind speed and type of cloud are the factors that affecting speed of cloud.

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On average, males tend to have a higher percentage of water in their bodies compared to females. This is due to a variety of factors, including differences in body composition and hormonal levels.

In general, males tend to have a higher muscle mass compared to females, which means they have a larger percentage of water in their bodies. Muscle tissue is approximately 75% water, while fat tissue only contains about 10-15% water.

As females tend to have a higher percentage of body fat compared to males, this can result in a lower overall percentage of water in their bodies.

Additionally, hormones can play a role in water retention. Women's bodies produce more estrogen, which can cause the body to retain more water.

This can result in bloating and fluid retention, which can lead to a higher overall percentage of water in their bodies. However, these differences in hormonal levels typically only have a small impact on overall water percentage.

Overall, while there may be some variation based on individual factors such as body composition and hormone levels, on average males tend to have a higher percentage of water in their bodies compared to females.

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The epidermal cells of onions offer a defensive layer in opposition to viruses and fungi that may damage the sensitive tissues. because of their easy structure and transparency they're frequently used to introduce students to plant anatomy or to illustrate plasmolysis.

Coral leaves are large, lithified calcium carbonate gathers that are generated by both living and skeleton coral colonies. One of the most obvious signs of coastal erosion is the formation of sea cliffs.

Sea cliffs are the steep faces of rock and earth created by angry waves. Over time, the deposited sediment typically accumulates to form a long ridge of material, typically made of sand or shingle. A spit is the name for such a ridge. Material that has been deposited in a long ridge that extends from the coast, occasionally partially spanning and obstructing the mouth of a bay. Bay Fence. The bay is completely blocked off from the ocean by a spit.

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Large, lithified formations of calcium carbonate formed from both living and skeletal coral colonies are called ______.

Differences of chilopoda and diplopoda are above .

Answer:

Punnett squares model processes, events, and structures at the cellular level is explained below in details.

Explanation:

The Punnett square is a tabular synopsis of achievable compounds of matrilineal alleles with patrilineal alleles. These records can be practiced to consider the genotypical consequence possibilities of the generation of a single characteristic (allele), or when crisscrossing various characteristics from the parents.

Answer:

They have different genes just as humans do

Explanation:

Answer:

They have different genes just as humans do

Explanation:

Explanation:

Out of those nine phyla, the phylum Arthropoda consists of a large number of insects, among which insects like silkworm and bees are useful insects. The larvae of a silk moth secrete the silk thread which is used to make clothes. Honey bees produce and store honey which is nutritious food.

Answer:

SILKWORM

They have highly elastic and high tensile strength.

HONEY BEES

Explanation:

pls rate as brainliest

Answer:

theres no image??

Explanation:

Inner ear is involved in detection of both hearing and equilibrium



Your inner ear is the deepest part of your ear.
The inner ear has unique jobs. It changes sound waves to electrical alerts (nerve impulses). This permits the mind to pay attention and recognize sounds. The internal ear is likewise critical for balance.

The inner ear is also referred to as the internal ear, auris interna, and the labyrinth of the ear.

The internal ear is on the end of the ear tubes. It sits in a small hole-like cavity inside the cranium bones on both sides of the head.

The inner ear has three primary elements:
Cochlea. The cochlea is the auditory area of the internal ear that adjustments sound waves into nerve indicators.
Semicircular canals. The semicircular canals sense balance and posture to help in equilibrium.
Vestibule. this is the vicinity of the internal ear hollow space that lies between the cochlea and semicircular canals, additionally helping in equilibrium

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\( = (12 \times 14 \times 25) {cm}^{3} \\ = 4200 {cm}^{3} \)

= 4200 ml

= 4.2 L

Answer:

4.2 L

Hope you could understand.

If you have any query, feel free to ask.

Answer:

2 in 4, 50 percent

Explanation:

in the punnet square, you can see that half the boxes ar Hh, which means the offspring will have hair.

Answer:

Ptolemy

Explanation:

Ptolemy is the earliest earliest astronomer and mathematician in the list who lived and worked in the second century AD. Nothing is known about his personal life but his scientific work is well known.

He made his observations using naked eyes. In his opinion, the Universe is ''a set of nested, transparent spheres, with Earth in the center.''(Khan Academy). His argument was that the Moon, Mercury, Venus, and the Sun were all revolving around around Earth.

Although Ptolemy made significant contributions in Astronomy but he was wrong in positing that the earth did not move at all. This is inconsistent with our present day knowledge about the celestial bodies. Also, his work missed out other planets that were yet to be discovered then such as Uranus, Neptune, Pluto etc.

Answer:

B

Explanation:

A bacterial cell that used its toxins to alter its DNA and resist the antibiotics is most likely going to be able to survive an attack by an antibiotic. If a cell lacks receptors or is going through binary fission, it would be easily attacked.