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3 years ago

Mammals have two traits that set them apart from all other animal.

1 answer:

6 0

One thing that separates us from the other animal classifications is that we have hair, everywhere! :D The next major difference is the fact that mammals don't lay egg's, we give birth to live creatures. Those are the 2 biggest things that distinguish us from them.

Hope I helped. :)

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Phosphatases are a family of enzymes that remove phosphate groups from specific proteins; these phosphate groups had been added

guapka [62]

Answer:

Kinases would stop working too.

Explanation:

Cells work constantly to maintain homeostasis or equilibrium within themselves. One of the mechanisms used for this purpose is feedback. As mentioned in the question, kinases put phosphates on proteins, and then, phosphatases take them off. Therefore, for phosphatases to work, kinases must be working at the same pace. By inhibiting the phosphatases the number of phosphate-proteins will be too high. This can be perceived by the kinases and they will automatically stop working since there's an excess of product. That process is called feedback.

5 0

3 years ago

Question 2 (1 point) Plants absorb nutrients from soil, and nutrients help plants grow. Which level of organization best describ

Leona [35]

Answer:

It would be an ecosystem. The ecosystem is a biotic community in which living organisms such as plants and animals interact with the non-living components of the environment such as sunlight, water, soil, rocks, etc.

Hope this helped

6 0

3 years ago

A friend asks you how exocrine glands differ from endocrine glands. She knows that both form from invaginated epithelium. How do

klio [65]

Answer:

Exocrine glands secrete sweat and oil while endocrine glands secrete hormones.

Explanation:

As she knows the endocrine and exocrine glands in respect of their origin from skin, so our answer must be related to the skin so that she can understand easily. So our answer should be as follows -

Endocrine glands are those glands which secrete hormones directly to the blood stream but exocrine glands are those glands which secrete sweat and oils directly to the skin surface.
A duct is often present in exocrine glands but endocrine glands lack ducts.

4 0

3 years ago

Which of the following is an example of Mendel’s Law of Dominance? * 1 point A dog breeder breeds a brown dog and a black dog an

Mashutka [201]

Answer:

A dog breeder breeds a brown dog and a black dog and all the puppies are brown.

Explanation:

This is because of the Mendelian inheritance order of characteristics. In all other example, there are several other things that don't align with this order like gender variability, specie variability etc.

All the puppies are brown and this shows proper and complete dominance in accordance with the law...

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3 years ago

Read 2 more answers

The structure of the cell membrane allows it to be selectively permeable. What is the name for the larger, brown structure in th

Anika [276]

Explanation:

B) protein channel

Lipids are composed of fatty acids which form the hydrobic tail and glycerol which forms the hydrophilic head; glycerol is a 3-Carbon alcohol which is water soluble, while the fatty acid tail is a long chain hydrocarbon (hydrogens attached to a carbon backone) with up to 36 carbons.

Their polarity or arrangement can give these non-polar macromolecules hydrophilic and hydrophobic properties. Via <em>diffusion,</em> small water molecules can move across the phospholipid bilayer acts as a semi-permeable membrane into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds. The hydrophilic heads of the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water to diffuse across the membrane along the concentration gradient.

Transmembrane proteins are embedded within the membrane from the extracellular fluid to the cytoplasm, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) which function as cell surface markers. Carrier proteins and channel proteins are the two major classes of membrane transport proteins.

Carrier proteins (also called carriers, permeases, or transporters) bind the specific solute to be transported and undergo a series of conformational changes to transfer the bound solute across the membrane. Transport proteins spanning the plasma membrane facilitate the movement of ions and other complex, polar molecules which are typically prevented from moving across the membrane.
Channel proteins which are pores filled with water versus enabling charged molecules to diffuse across the membrane, from regions of high concentration to regions of lower concentration. This is a passive part of facilitated diffusion

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

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4 0

3 years ago