What best describes a theory

What is the main function of mesophyll tissue of leaves?

The large increase in atmospheric carbon dioxide in the last 50 years most likely come from ...

Explain why visible structures, such as fins, beaks, and tails, look so different on different organisms.

Which type of pelvic tilt should precede abdominal exercises in the supine position?

Would a trait that has only 2 distinct phenotypes more likely be a single gene trait or a polygenic trait

Australopithecines were the ancestors of monkeys. A. True B. False

A mutation that causes a human have 11 toes is (neutral, harmful, or beneficial.)

Cells of a fungus and an animal

Is cytoplasm prokaryotic or eukaryotic

Professor Jones surveyed her six classes and found that students who slept less than 5 hours the night before an exam received lower exam scores than those students who slept 7 hours or more.