The higher invertebrates are divided into two evolutionary lines, protostomes and deuterostomes. This division is based on which developmental feature?

Based on this phylogeny, which statement is correct? a. Salamanders are as closely related to lizards as to humans. b. Salamanders evolved before lizards, goats, and humans. c. Humans are the most evolved species in the phylogeny. d.

Why do the common names of organisms-like daisy or mountain lion-often cause problems for scientists?

The selective loss of unused connections among brain cells is called

How many times do cells divide during meiosis?

What is a solution? what happens when table salt and water form solution?

How do plants atrract flies or possums for pollination

Suppose a bolt of lightning starts a fire in a forest. The fire sweeps through the forest and burns away accumulations of brush and deadwood. What is the most likely effect of the fire on the forest community?

What impact does 2-d diversity have on a company?

How can acid rain affect biodiversity in a pond?

Which of the following would be categorized as a cultural ecosystem service of forests?