Which is true for both photosynthesis and cellular respiration?

A) They require oxygen as a reactant.

B) They require organelles.

C) They require light energy from the sun.

D) They require cells to use water.

Which is most likely to occur if a man's testes are not working properly? Select all that apply. A. Sperm will be formed in a larger than normal quantity B. Fewer sperm cells will be produced C. Less testosterone will be produced

What factors interact to produce smog? select one: a. sunlight and pollutants from fossil fuels b. sunlight and oxygen c. particulates and pollutants from fossil fuels d. sunlight and acid rain?

The process of nuclear division in cells that produces daughter cells that are genetically identical to each other and to the parent cell.

if the united states continues using petroleum in vast amounts, it will become even more dependent on foreign sources for this resource. why?

The four nitrogenous bases are also referred to as 1. Nucleotides 2. DNA things 3. Sugar-phosphates

climate has changed in the past due to A. earthquakes and D. milankovitch cycles B. air pollution E. global warming C. plate tectonics F. lunar phases

What is the largest structure ever made by life on Earth

How is it possible that the F2 generation offspring had some short plants when the F1 generation had no short plants on Mendel's Expirement?

Does the specimen have a depressed body?

Is the smallest particle of a substance that has all the properties of the substance.