Which of the following is a benefit of using dams as a source of freshwater? A. Dams increase the chances of a flood. B. Dams displace existing organisms. C. Dams have a risk of failing. D. Dams create water-recreation areas.

Most Swiss starlings produce four to five eggs in each clutch. Those producing fewer or more than this have reduced fitness. Which of the following terms best describes this? a. directional selection b. stabilizing selection c.

Which statement explains what aerobes use oxygen to do? a.) to insulate themselves in anaerobic enviroments b.) to prevent free radicals from reacting with DNA and other vital molecules c.

What do plants use to signal one another and communicate?

When amino acid bond further, creating a globular shape, it is referred to as its blank structure

An ecosystem is self-sustaining as long as organ - isms have sufficient quantities of energy, oxygen, minerals, and water. when organisms die, some of these materials are recycled back to plants in the ecosystem primarily through the activity

Which of the following tools should a scientist use to measure an object in meters? Electronic balance Pan balance Tape measure Thermometer

What causes nematocysts to discharge?

Why are biologists concerned about the destruction of rainforests?

Mitosis produces which cell type? O haploid O diploid O chromosome gamete

Jason is in middle school and is well below normal height for his age. which hormone might be in short supply in jason's body?