Rainbows are more beautiful after fall rainstorms than spring rainstorms. This statement is a poor hypothesis because it is not A. a question. B. testable. C. observable. D. a comparison.

if u looked at a red blood cells under a microscope and saw the blood cell exploded, what would you say happened?

An organism in its early stages of development is called an

The four examples listed above could all be responsible in the change in a gene pool, also called

Isotopes have different numbers of:

Goosebumps are caused by contractions of the

As described in lecture, cells form actin filaments in particular regions of the cell in part because they nucleate filament formation at particular times and places within cells and in part because they inhibit the formation of filaments that are

What is the main difference between the gas water vapor and the liquid water? A The molecules of water vapor are much smaller than those of liquid water. B Liquid water is made out of different molecules than water vapor is.

Which outcome occurs when bonds between atoms are broken or formed? A. a physical change B. an element increasing in size C. a chemical change D. a change of state

What events caused the formation of most islands in the South Pacific?

A new species of plant arises as an allopolyploid from two other plants, one with a diploid number of 14 and one with a diploid number of 18. what would the diploid number of the new species most likely be?