Pfiesteria piscicida can be toxic fish-killing cells (TOX-A) and sometimes toxic (TOX-B) and noninducibly toxic (NONIND-never toxic) What strain of this species do you think is the ancestral condition? Explain the impacts of each of these strains on each other and the ecosystem that they inhabit. Remember include information from the abstracts to support you arguments.

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

What substance acts to prevent sudden ph changes in bodily fluids?

Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?