A cell with a single set of chromosomes is called a

a. diploid cell.

b. haploid cell ...

c. zygote.

d. none of the above.

How do plants respond to different environmental stimuli?

Functional adaptations can never be replaced by equivalent genetic adaptations. a. True b. False

Why doesn't air temperature change uniformly with altitude?

Food web is many over lapped food chains in an ecosystem true or false

Which statement describes a climate condition? The city is covered in snow. A cold front is approaching the city. We had clear and sunny skies yesterday. Springtime temperatures have risen over time.

What is the difference between bacillus, coccus, and spirillum

What is always true of scientific practices a. They prove a hypothesis to be correct b. They involve steps performed in the same order c. They seek to produce verifiable data d. They lead to the same interpretation

Which statement is true about the scientific method

How do cells correct errors in DNA that would disrupt their function

Which is true of oxidation? a) It is a physical process b) No change occurs in the makeup of rock c) Rocks weather at different rates d) Water freezes in cracks in rock