Biological change over time accounts for the diversity of species. This diversity occurs or develops?

How can i tell if most of the plants in my environment are vascular or nonvascular?

Nicotine is only one of the many toxic chemicals inhaled while smoking. What effect can such toxic chemicals have on the body? (1) They stimulate an increase in height. (2) They stimulate uncontrolled cell division.

The graph represents velocity vs. time for Carla. A graph with horizontal axis time (seconds) and vertical axis velocity (meters per second).

Which bar graph best represents the provided data? cause of extinction

What is the role of the central nervous system in this model? coordinator effector response stimuli

How does the cell wall of a plant cell compare to the plasma membrane of an animal cell? a. the cell wall provides structure and support; the plasma membrane controls the substances that enter and leave the cell. b.

How can summer temperatures affect air pollution

In the winter, the air temperature suring the day might likely be

How does carbon enter plants?

What are the disadvantages of using a belt transect