In a molecule of water, how many electrons are shared between each hydrogen atom and an oxygen atom?
o a. one
ob. two
oc. four

Which of the following is an advantage of solar energy?

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.

Which feature of a human community is similar to a niche in a biological community