Which biome has hot days, cool nights, and very few plants?

Why do you suppose the structural polysaccharide cellulose does not contain branches?

Name the most important mineralocorticoid secreted by the adrenal cortex

When do you think a life scientist would study a nonliving thing such as a lake or a rock?

Two closely related species of frogs live by the same pond. Species A feeds on flies and caterpillars, while species B feeds on grasshoppers and worms. Explain how the two species coexist?

Which would most likely be happiening in cancer cells

A scientist is carrying out replication of DNA artificially in her laboratory. What will she use to join the gaps on the DNA strand? (a.) the enzyme DNA polymerase (b.) the enzyme DNA ligase (b.) an artificial adhesive compound

Which part of an atom has most of its mass

One of the challenges of wind power is that the ___ of wind ___ day to day depending on weather conditions

How does the human brain interpret and render the surroundings and state of the body?

Eye shine in nocturnal mammals is different from the red eye seen in some flash photographs. eye shine is the reflection of light off the tapetum lucidum. what visual mechanism might explain red eye?