Is say the answer will be B, because today giraffes have long necks to reach they food, back then their food must have been closer to the ground, so the long neck would have been uncalled for. Please give me a brainliest thing I need 2 more.
Answer:
Uncomfortable heat and humidity
Explanation:
After it rains for a long time, the humidity level rises, and most of the time it also brings heat with it. The author was using the metaphor of the broccoli being dropped into a steamer to explain the heat and humidity outside.
Hope this helps :)
Answer:
Random mutations led to evolution of pesticide resistance genes in bed bugs.
Explanation:
Random mutations in genome of bed bug imparted them the pesticide resistance. Since the bed bugs having the mutation of pesticide resistance were able to survive under presence of pesticides, this variation was favored by natural selection. The bugs with pesticide resistance transmitted this trait to their progeny. In time, the bed bug population consisted of most of the bugs having the pesticide resistance.
C. Vestigial structure is the correct answer
