A whale-fall is the carcass of a cetacean that has fallen into the Bathyal on the ocean floor. The sediment ussally becomes infested with huge populations of polychaete worms and unusal crutaceans.
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Answer:
severe drought, since other are biotic factors.
Answer:
Biological anthropology
Explanation:
Biological anthropology is a mixture of social studies and biological studies. This science investigates the evolution of human beings in the context of behavior. Biological anthropologists investigate how changes in human physical and genetic profile interfered with their social and cultural behavior through the history. Biological anthropology tries to give us an answer what is the cause of present human diversity. To understand how humans evolved, some scientists study primates (monkeys and apes) and others examine the skeletal remains of our human ancestors.
<span>B)The immunity they receive in the womb from their mother is temporary.
I believe this as the mother passes antibodies to the child through the last three months of pregnancy, and this is a passive immunity </span>
