Which type of guppy is most successful in this environment ?

the answer is d.) homologous; have mammary glands

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a

1. is geographic distribution

2 is increasing complexity

3 is transitional forms