The populations of birds rabbits insect and grasses in a meadow have remained fairly constant for the past 10 years. Then, heavy rains in a flood covered the meadow with water for two weeks, disturbing the ecosystem. a)the ecosystem will be completely destroyed, an no organisms will be able to live there
b)the grasses will die from the flooding but the bird, rabbits, and insects will maintain their current population levels
c) The birds, rabbits, insects, and grasses will maintain the stable population they have shown over the past 10 years d) The existing populations will decrease, and new species of local populations of the same species might move in

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

Taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? view available hint(s)taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? the enzyme will not work on human dna.nothing should be altered.the ph should be decreased.the temperature should be raised.

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from