Calculate the percentage of the cell cycle spent in each stage. number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage

The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.

What pattern of migration do whales follow?

Which are evidence of seafloor spreading? check all that apply. molten material magnetic stripes continent material drilled core samples ocean water samples