Lessons
an insect species is accidentally introded into a new habitat. the introduced insects feed on hardwood trees and have no natural predators in their new habitat. which of the following is the most likely result?
a. the introduced insects will not thrive.
b. predators will evolve to feed on the insects.
c. the populations of hardwood trees will grow.
d. the population of introduced insects will grow.

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

What advantages does a pedigree have over a written passage?

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.