What is the site of the light-dependent reactions? a thylakoid membrane of the chloroplasts b stroma of the chloroplasts c cristae of the mitochondria d stroma of the mitochondria?

During which period of the Paleozoic Era did the first amphibians evolve? A. Permian B. Devonian C. Cambrian D. Carboniferous

One way the body fights invaders is by increasing the body temperature, or running a fever. Give a brief explanation as to why that defensive technique works against some viruses or bacteria. This is a writing assignment!

Which of the following answer correctly describe DNA. There is more than one correct answer. Bases are adenine, uracil, cytosine and guanine. Bases are adenine, thymine, cytosine and guanine.

What are the four classes of biomolecules

What happens to detritus in the ground? Why is this important?

Which of the following tools should a scientist use to measure an object in meters? Electronic balance Pan balance Tape measure Thermometer

What causes nematocysts to discharge?

Why are biologists concerned about the destruction of rainforests?

Mitosis produces which cell type? O haploid O diploid O chromosome gamete

Jason is in middle school and is well below normal height for his age. which hormone might be in short supply in jason's body?