Lipids are hydrophobic molecules. Cholesterol is an example of a lipid.

Why are there relatively few errors in dna molecules after dna has been replicated A. The bonds are so strong that errors are never made B. Replication enzymes proofread new DNA strand before replication is complete C.

Which organelle is called the "powerhouse of the cell"? Question 12 options: mitochondria nucleus ribosome vesicle

What does the pulmonary artery do answers?

What's the percentage of organisms that survived? A natural disaster caused a population of 4,695 organisms to migrate to a new habitat.

Vinegar has a pH of 3, and household ammonia has a pH of 11. Is the concentration of H + greatest in the vinegar or ammonia?

What is the function of a nucleus in a cell the nucleus A. controlls the cells activity B. the nucleus identifies the cell as belonging to a plant C. the nucleus determines what substances enter and leave the cell D.

Which best describes emerging scientific ideas? a. never been tested b. unpublished c. supported by most, but not all, scientists d. not studied by many scientists

A sonic boom is produced by a jet. What can you determine about the jet's motion? a) It is near a mountain where echos can be produced b) Its engines produced backfire c) It is increasing in altitude d) It is traveling faster than the speed of

What happens when someone dies?

As the mass of an object increases, so does its gravitational force. true or false