What substance found within the chloroplasts of leaves is responsible for capturing light energy during photosynthesis?

Which statement best explains why organisms of the same species that become isolated eventually become different from each other over time? Their DNA mutates. They are exposed to different environments. They both find ways to survive.

What environmental disaster can be attributed to over-population and over-use of resources by humans? a. the Exxon Valdez oil spill in Alaska b. climate change due to the greenhouse effect c.

Which of the following prevents blood from flowing backward through the circulatory system? Smooth muscle in the arteries Smooth muscle in the veins Valves in the arteries Valves in the veins

In selective breeding, organisms with desired traits are chosen to be parents of the next generation. Select one: True False

Why can't more than one sperm enter an egg?

Name 4 nitrogenas bases of dna and rna. which match with which

The newest brain scanning technique which is popularly used is

The process of making new dna molecules is semiconservative. this means that every new dna molecule is composed of

What muscle fiber is the thickest and has cross bridges?

To make 1+1=1 what need to happen to the DNA of the parents