Answer:
B. the population of migratory birds is affected by the use of wind turbines
Explanation:
Yes some fishes have long tails that can be a threat which can cause fights.
The placenta forms at 8 weeks, and develop for 6 weeks. hope this helps
Answer:
Hey there the answer would be D. Keratin is the pigment responsable for skin color.
Explanation:
A. The top layer of the epidermus is made of dead skin cells. The inner player has to be constatnly making more cells
B.The body procudes more melanin with stronger sunlight exposure. This results because the UV of the sun causes T-T dimers which is a type of DNA damage.
C. UV causes genetic mutation which can result in cancer if not fixed by the cell
D.Keratin is found in the epidermis and with thick layer of skin found in the hands and feet. Melainin is responsible for skin color.
