Why does photosynthesis require water? a. because water provides oxygen atoms. b. because water provides electrons. c. because water accepts electrons. d. because water acts as a catalyst.

The current in a hair dryer measures 19 amps. The resistance of the hair dryer is 7 ohms. What is the voltage?

Temperatures in ponds and lakes vary by season.

Which of the following explains why water is a good solvent for polar and ionic compounds? Choose 1 answer: (Choice A) Water is a polar molecule. (Choice B) Water is an ionic compound. (Choice C) Water is a hydrophobic molecule.

When classifying organisms using a dichotomous key which category is the narrowest or will contain the least number of organisms

Eukaryotic chromosomes differ from bacterial chromosomes because only eukaryotes have Select one: a. chromosomes in a nucleus. b. histone proteins. c. All of the choices are correct. d. elongated, not circular, chromosomes. e.

All living things are made of cells. What might be a major difference between cells that are found in human skin and human nerve cells?

I live in wet land, I respire through roots

What do scientist think causes the movement of earth's plate?

If a normal human cell has 46 chromosomes how many chromosomes will it's daughter cell have?

Differentiate between sexual and asexual reproduction