Which cells have tiny holes through which nutrients move from cell to cell?

sieve tube

elements

tracheids

vessel elements

According to fossil records, the horses that lived 50 million years ago were much smaller, weaker and slower than modern horses.

In what era did modern man first appear?

Predict the dominant type of bonding by considering electronegativity.

an active transport proton pump drives protons out of the cell using energy from ATP. Under some circumstances pumps like this can be run in reverse. If this pump could be reversed, what would be the result in the cytoplasm?

What does it mean that a hypothesis must be testable? O A. The hypothesis must be shown to be true before the experiment. O B. The hypothesis must have an experiment that uses math. O C. There can only be one experiment that tests the hypothesis.

True or false? both lungs are divided into two lobes.

Which mineral property describes a minerals resistance to being scratched?

How many electron pairs does carbon share in order to complete its valence shell?

How do root hairs increase in surface area of absorption

Which type of reproduction is more likely to increase genetic diversity? why? type your answer here. 2. which type of reproduction typically happens more quickly? why? type your answer here. 3.