Which is a tough and flexible layer that surrounds plant cells, as well as some algal and bacterial cells? cell wall centriole nucleus cell membrane

A lizard lies on a rock to raise its bod temperature. This is called what?

If the fat in a container is solid at room temperature, what type of fat is it? a. saturated fat b. monounsaturated fat c. trans fat d. short-chain fatty acids e. polyunsaturated fat

When will a neuron generate action potentials?

Which process can produce the most energy for a cell? A. lactic acid fermentation B. Arabic respiration C. anaerobic respiration D. alcohol fermentation

1. The concentration of sugar is higher inside a cell than outside the cell. The concentration of water inside the cell is lower than it is outside. Sugar cannot pass through the cell membrane.

Terrell uses a microscope to look at slides of plant cells. He sees a cell with two nuclei that have visible chromosomes. In which stage of cell division is this cell?

How would you expect the attenuation of light (like with increased turbidity) to influence net productivity? Why?

What kind of cells have chloroplasts?

Which of the following is an output of photosynthesis? a. oxygen b. carbon dioxide c. water d. nutrients

A scientific hypothesis can become a theory if A. the entire scientific community accepts it. B. the hypothesis is tested extensively and competing hypotheses are eliminated. C. there are no other competing hypotheses. D.