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lana66690 [7]
3 years ago
12

Organisms have observable traits. To observe something means to

Biology
1 answer:
Wittaler [7]3 years ago
5 0
Learn by looking at others do something
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The epidermis is the most superficial layer of the skin. It is composed of stratified squamous epithelium. Within the epidermis,
son4ous [18]

Answer:

a. Stratum corneum 5. : Thick superficial layer of flat, keratinized, dead cells; responsible for dandruff.

b. Stratum granulosum 3.: Cells flatten and fill with keratin, resulting in a grainy appearance.

c. Stratum lucidum 4. : Clear layer found only in thick skin; cells full of keratin.

d. Stratum basale 1. : Deepest layer; site of rapid cell division and melanin production.

e. Stratum spinosum 2.: Live keratinocytes connected by desmosomes produce pre-keratin

Explanation:

The epidermis has five layers, starting from the deepest one they are:

The stratum basale: is the layer that has the germinative cells, called keratinocytes.

The stratum spinosum: the keratinocytes are connected, and they produce the precursor of keratin and lipids.

The stratum granulosum: the name of this stratum is due to the appearance of the cells. They produce keratohyalin, and the lipids produced in the previous layer are released, creating the layer that protects the skin against dehydration.

The stratum lucidum: They are only in thick skin, like the one that is in the sole of our feet. The cells do not have a nucleus. They are filled with keratin, which is the component of thick skin.

The stratum corneum: the more superficial layer, it is made of dead cells filled with keratine. When new cells ascend to this stratum, the old ones have to be removed by exfoliation or natural peeling.

4 0
3 years ago
Plaque formation in virus is done for :
mr_godi [17]

Answer:

I think the answer is determining infectivity of a virus

Explanation:

hope that it will help you

6 0
3 years ago
A person has begun eating a meal that contains starches, fats, proteins, and a
Elza [17]

The journey of the food through the digestive system will actually digest the food. The rest will be given out as feces.

<h3><u>Explanation:</u></h3>

The digestive system actually consists of digestive tract and Digestive glands. The processes that are associated with digestive system is - ingestion, digestion, absorption, assimilation and egestion.

The food that is taken is first smashed and chewed into a rough bolus by mixing with saliva. The salivary amylase slightly digests the starch into dextrin.

Then the food is engulfed through the oesophagus into stomach. Inside stomach, the food is mixed with an enzyme pepsin and HCl. Pepsin digests the proteins into peptones and peptides. The food is converted into a bolus and transported into duodenum.

In duodenum, there are several enzymes from small intestine and pancreas breaks the fats into fatty acids, proteins into peptides and starch into carbohydrates like glucose. They are absorbed and the undigested substances are left over ad feces.

3 0
3 years ago
Why do you think are the reasons why only few seeds germinate​
Svetlanka [38]
The first reason is that Thats because the seeds will remain dormant until they have the resources they need for eg: some seeds are frozen in winter so that they wont germinate until they have enough resources in spring .
3 0
2 years ago
Read 2 more answers
What ecological roles do liverworts mosses and hornworts play in the environment?
alexandr1967 [171]

They are among the first colonizers of an environment. This way they break down rocks and make nutrients available for other plants. They help in retention of water in a habitat and also shelter many microorganisms. They also decompose organic matter hence play an important role in the cycling of nutrient in the environment.


5 0
3 years ago
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