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Mandarinka [93]
2 years ago
7

Describe the characteristics of the keratinocyte membrane that restrict water movement across the membrane. If isolated keratino

cytes are placed in a hypotonic solution for 24 hours, explain why there are likely to be far fewer cells at the end of this time than there were at the start.
Biology
1 answer:
elena-14-01-66 [18.8K]2 years ago
6 0

Answer:

It has four layers and attach with each other with desmosome.

Explanation:

The keratinocytes are arranged in four different layers which are the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum. These cells are attached with desmosome which is a membrane protein. The presence of these four layers made a barrier against damage done by heat, UV radiation, water loss, pathogens etc. There are fewer cells at the end of the time as compared to the start because may be of the water pressure on the membrane or these cells for a long time.

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Put the steps of the nitrogen cycle in order, starting with the step that
Pepsi [2]

Nitrogen Cycle steps:

N molecules breaking apart via nitrogen-fixing bacteria.

Animals ingest nitrogen in nitrate-containing food after plants use nitrogen-containing compounds.

The organic matter decays via decomposers

N2 is formed via denitrifying bacteria.

Explanation:

The nitrogen-fixing bacteria removes atmospheric nitrogen by fixing nitrogen through nitrification. The atmospheric nitrogen cannot be absorbed by plants and hence has to be converted into nitrates. This conversion takes place by nitrifying bacteria present in leguminous plants.

Animals (herbivores) consume the plants that have absorbed nitrogen/

When these animals die, decomposing bacteria acts on the dead organic matter, decomposition takes place through ammonification, converting the organic nitrates into ammonia

The nitrates are converted back again to nitrogen by the action of denitrifying bacteria.  

The nitrogen thus formed is released to the atmosphere

5 0
3 years ago
Which do you think would adapt and survive overtime to a mass extinction? A starfish or an eel?
Harlamova29_29 [7]

Answer:

Starfish

Explanation:

This is an opinion questions, so there really isn't a right or wrong answer.  You could just as easily choose Eel.  Your task is to pick one and defend your reasoning.

I chose starfish because starfish have a long history of demonstrated adaptability to a wide variety of conditions.  Their armored skin protects them from a variety of predators, as does the poison that many of them contain.  They have the ability to regrow limbs, and even regrow entire starfish from certain body parts.  When it comes time to breed, starfish meet together in groups.  Each female releases a few million eggs from the gonads in each of her arms.  Each male then releases billions of sperm from each gonad in each of his arms, thus covering the eggs with sperm to fertilize them.

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2 years ago
What is #34 answer ??
Illusion [34]
B.the mass of carbon dioxide plus water is less than that of paper plus oxygen.
8 0
3 years ago
What does alternative energy mean ?
Kitty [74]

energy generated in ways that do not deplete natural resources or harm the environment, especially by avoiding the use of fossil fuels and nuclear power.

8 0
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The image below shows one muscle cell. Please choose the name of the structure that is labeled A.
Bond [772]

The name of the structure labeled as A is 'myosin'. Moreover, the name of the structure labeled as B is 'actin'.

A sarcomere is the basic unit of muscle contraction. This unit is defined as the region between two Z-lines.

Band A is a central band composed of the thick filaments of myosin.

Moreover, the sarcomere also has two halves of a band known as I-band, which consists of thin filaments of actin.

Muscle contraction is caused by the interaction between actin and myosin protein filaments in the sarcomeres.

Learn more in:

brainly.com/question/7146598?referrer=searchResults

6 0
2 years ago
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