Answer:
b. Melanocytes-protect cells in the dermis from damaging effects of sun's rays
Explanation:
Keratinocytes are responsible for the forming tight junctions with nerves of skin. They keep Langerhans cells of epidermis and lymphocytes of dermis in place.
<u>(Option A is incorrect).
</u>
Melanocytes are the cells of the neural crest origin. In epidermis, they form association closely with the keratinocytes via dendrites. Melanocytes are responsible in skin pigmentation.
<u>(Option B is correct).
</u>
Basal cells are undifferentiated and proliferating cells. For the normal skin homeostasis, the daughter cells from basal cell layer migrate upward and begin process of the differentiation.
<u>(Option C is incorrect).
</u>
Merkel cells are located in basal epidermal layer of skin. Merkel cells are essential for the light touch sensation and are found in the skin of vertebrates.
<u>(Option D is incorrect).
</u>
Answer:
Vesicular follicle.
Explanation:
Vesicular follicle is also known as graffian follicle. The primordial follicle grows in size to form primary follicles. Primary follicles further grows and form secondary follicles.
Under the influence of follicle stimulating hormone, the secondary follicle changes into vesicular follicle. The vesicular follicle ultimately ruptures and release the oocyte.
Thus, the correct answer is option (C).
Cerebrospinal Fluid (CSF) flows through the four ventricles and then flows between the meninges in an area called the subarachnoid space. CSF cushions the brain and spinal cord against forceful blows distributes important substances and carries away waste products.
Answer:
A. erythrocytes
Explanation:
Erythrocytes are red blood cells. There are about 600x as many RBCs as there are white blood cells (leukocytes) in the blood. Plasma cells and macrophages are both types of leukocytes. If there's more RBCs than WBCs, there's definitely more RBCs than plasma cells or macrophages.
This answer is indeed true as in who else would the baddy receive their genes from¿