What is a light-year? question 13 options: the distance light travels in one earth year the distance light travels from the sun to the earth the distance light travels in one orbit of the moon the time it takes light to travel across the universe

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

Apuppy’s tendency to chew is inherited through which of the following? a. through learned behavior b. through genes c. through seasonal cycles d. through hibernation