During the “light reactions" of photosynthesis, chlorophyll molecules use the energy from light to strip away electrons from water and bounce them up to a higher energy level. What is produced as
a by-product of the light reactions?

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?