Compare the three types of forests: tropical rainforest, temperate deciduous forest, and boreal forest (also called the taiga). answer the following questions. feel free to use the internet for further information if needed.
what are three characteristics that these biomes have in common?
how are the trees different in these three biomes?
describe the three soil types. before you learned about the biomes, which of the three would you have thought would have had the richest soil? why?
for each of the three biomes, describe what you see as the biggest challenge to plants and animals. what environmental factor most drives their adaptations? (example: for the desert, the factor would be the lack of water and heat.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.