Which statement is true? a. Prokaryotic cells have multiple membranes. b. Eukaryotic cells have one membrane. c. Prokaryotic cells do not have a membrane. d Eukaryotic cells have multiple membranes

Environmental differences within ecosystems are generally caused by

Which of the following is a difference between neutral energy balance and positive energy balance? Group of answer choices Energy intake increases during neutral energy balance, whereas energy intake decreases during positive energy balance.

Complete each statement. - guanine (G), cytosine (C) and thymine (T) are the four in DNA, 8. In DNA always forms hydrogen bonds with guanine (G). 9. The sequence of_ carries the genetic information of an organism. 10.

In an experiment to determine the effect of exercise on pulse rate, a student checks his pulse rate before and after exercising for several minutes.

Proteins degradation provides free amino acids, which may be further degraded by deamination and transamination in order to synthesis new compounds, produce energy, or eliminate waste.

How many kingdoms are in the modern system of classification?

One cell that undergoes meiosis will yield how many independent cells

What type of macromolecule is the sugar fructose?

DNA uses, while RNA uses.

How does pollution affect land, air, and water?