describe how the structure of the chloroplast and mitochondria controls movement across the membranes.

If organisms a and b both possess wings and are the only extant organisms that possess wings, what can we infer about the evolution of the wing trait?

How might genetic drift be important in a small population? 1. It increases genetic diversity by introducing alleles from one population into another. 2. It decreases genetic diversity only by reducing population size. 3.

Which type of passive transport requires a protein channel? a osmosis b exocytosis c diffusion d facilitated diffusion

What advantage does vegetative reproduction offer someone who needs to grow large numbers of a specific plant variety for commercial sales?

By 1999, after the Clean Water Act had been passed in 1970, the percentage of U. S. surface waters safe for fishing and swimming had increased from 36 percent to

In a text area below compare and contrast a cell membrane and a cell wall

Which is an advantage of sexual reproduction? a. two parents are required. b. only one parent is required. c. it leads to genetically diverse offspring. d. it leads to genetically identical offspring.

How are three different types of consumers alike and how are they different

What do a door and a venus flytrap leaf have in common

Where would be the best place to find an alpine glacier A) Antarctica B) Greenland C) the Himalayas D) the North Pole