Which of these organisms lacks nervous tissue? A. sponge B. jellyfish C. nematode D. earthworm

Describe each of the two paths viruses may follow once they have entered a cell.

Blanching works to keep vegetables crisp and green when cooked because a. PPOs are denatured at high temperature b. Acids keep colors bright c. Bases keep vegetables crisp d. Ice water reverses Maillard reactions

What is the chemical energy in the cell called

Tony wanted to see if he could make the roots of a plant grow up instead of down. After several tries, he found that the roots always grew down. Nothing he or his teacher did made the roots grow up. What keeps the roots from growing up?

Which two ions can the kidney preserve or excrete to regulate the blood pH?

Euglena use chloroplasts to make food through the photosynthesis process. a. True b. False

What color are tigers under their fur?

Which statements explain what will happen during the Asteroid Redirect Mission? Check all that apply. The Orion crew will travel to and land on an asteroid. A boulder will be brought to Earth for further study.

If you continue to increase the intensity of light that a plant receives, what happens? A. The rate of photosynthesis increases indefinitely with light intensity. B. The rate of photosynthesis decreases indefinitely with light intensity. C.

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