A tomato plant grows in the direction of a

source of light.

Which of these is true of the nervous system? a. axons signal the intensity of a stimulus by varying the speed of action potentials. b. ordinarily, you use only about 10% of your brain. c. new neurons can form in certain areas of the adult brain. d.

How do human contribute to the water cycle

How Many planets are There in The world

Energy can cause an object to _ is the ability to cause change. its position or its motion.

This is an organism that has two different alleles for the same genetic trait.

Most destruction in an earthquake is caused by - waves

Which macromolecule includes steroids? a. lipids b. proteins c. carbohydrates d. nucleic acids?

The diploid cell created by the joining of conifer sex cells produces a (n): a. Zygote c. Bryophyte b. Megaspore d. Angiosperm

Which is a leading theory for the formation of fossil fuels?

Allele segregation and gamete formation one character in peas that mendel studied was yellow versus green seeds.