Why is the water cycle so critical to all ecosystems

A. Water provides energy to producers

B. Water is the base of all food chains

C. All living things need water in order to survive

What nitrogen is unique to rna

Select one or more: a. Advances in mechanized farming and pest control resulted in rising crop yields per acre (more food grown per farmed acre). b.

What is responsible for making an axle spin in an electric motor

Suggest two ways in which fracking can benefit the communities in the area

Which substance is used for structure in plants? A. Amylopectin B. Cellulose C. Collagen D. Starch

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.