The epidermis is made up of five cell layers, which have different functions: Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.

Stratum basale is the innermost germinative, single, basal layer of the epidermis composed of basal cuboidal-shaped cells. These cells are the precursor of keratinocytes, this is why this layer is also called germinativum. In this basal layer, there are also Merkel cells as well as melanocytes.

Stratum spinosum refers to the keratinocytes which produce keratin.

Stratum granulosum, this is the layer where keratinization begins. Cells produce hard granules that change to keratin and lipids as they ascend.

Stratum lucidum is conformed of densely compressed cells, which begins to flatten and appear indistinguishable between each other.

Stratum corneum is the most external layer, composed of dead, flattened cells which are released regularly in a process known as desquamation.

8 0

3 years ago

Kira got out of breath while performing, and began breathing slower and deeper after the performance. Which of the following bes

UkoKoshka [18]

Answer:

I think C, but I'm not positive

Explanation:

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3 years ago

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(4. Synthesize How did Darwin's

zysi [14]

Answer:

Darwin observed marine fossils in the mountains and the uplift of land by an earthquake which supports Lyell's theory.

Explanation:

Lyell's theory of an ancient Earth states "the formation of Earth's crust took place through countless small changes occurring over vast periods of time".
So Darwin had an observation of marine fossils that uplifted the land through many years by earthquake. Which was the same thing Lyell's explained.
According to known natural laws, It takes lots of time to form the earth's crust.

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3 years ago