Answer:
A) stratum basale.
Explanation:
The epidermal layer consists of five layers. This is not having any blood vessels and known as avascular. The four-layer starting from stratum basale to stratum corneum is referred to as thin skin. But the skins of foot and palm has another layer called stratum lucidum. This layer forms the five layers of the epidermis.
The stratum basale is the deep layer of the epidermis. Below this layer dermis is present. This layer consists of basal cells which are precursors of keratinocyte cells. The stratum basale is a single layer cell and it undergoes continual mitosis. So that this cell produces new cells and these new cells replace the other older cells above it.
As the basal cells are precursors of keratinocytes, they produce all keratinocytes of the epidermis.
Two other types of cells are produced from this layer - Merkel cell, and melanocyte. Merkel cells act as touch receptors and melanocytes produce melanin pigments.
The correct option is (A) solar radiation strikes the poles at a lower angle and travels through more atmosphere.
The main reason polar regions are cooler than the equator is that solar radiation strikes the poles at a lower angle and travels through more atmosphere.
<h3>
Why polar regions are cooler than the equator?</h3>
- Because they get much less solar energy than the tropics and mid-latitudes do, the earth's two pole regions are chilly.
- At either pole, there are six months of nonstop darkness and the sun never rises higher than 23.5 degrees over the horizon.
- Furthermore, the dazzling white surface reflects the majority of the sunlight that does reach the polar areas.
- The Arctic Ocean serves as a useful heat reservoir, absorbing heat from the atmosphere in the summer and warming the chilly winter environment.
Learn more about the equator and polar regions with the help of the given link:
brainly.com/question/2498503
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They are the same equation just reversed
Answer:
mitochondria is the powerhouse of the cell
Explanation:
