Which of these scientists did not make a major contribution to cell theory?

-Virchow

-Schleiden

-Mendel

-Schwann

How does the property of cohesion affect the way liquid water behaves

Is the following sentence true or false? Most prokaryotes reproduce by conjugation.

What do people need to survive

Which describes how weathering and erosion are different? Weathering is caused by water. Erosion is caused by wind and ice. Erosion transports sediments. Weathering is a natural process.

Most of the earth's surface is covered with A) land. B) polar ice. C) salt water D) fresh water.

What is the role of cellular reproduction in maintaining genetic continuity

What is the trait that distinguishes primates, rodents / rabbits, crocodiles, and dinosaurs / birds from amphibians and earlier lineages?

John, a 19 year old boy, wanted to figure out why he wasn't sleeping well at night. He normally and heads to bed by 11 pm and wakes up about 6 am.

What is the base-pairing rule for DNA?

What kind of bond forms between oxygen and hydrogen in a single water molecule? A. Ionic B. Metallic C. Polar covalent D. Hydrogen