Imagine walking through a tropical rainforest. you notice that there are different types of trees, birds, insects, and other organisms. a few weeks later you are taking a walk through the desert and notice that the trees, birds, insects, and other organisms are different than those you saw in the rainforest. which of the following statements best explains the differences between each of these ecological systems? a. organisms in each ecological system have short dispersal distances and are confined to the area where they mate.
b. organisms in each ecological system have evolved in that system and have adaptations suited for that environment.
c. organisms in each ecological system haven't had enough time to evolve the adaptations for the other ecosystem; with enough time they will evolve into the other ecological system.
d. organisms in each ecological system are there by chance and their presence in different ecological systems does not have a biological explanation.

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

How does a lytic infection differ from a lysogenic infection?

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems