The atmosphere and seas of the early earth lacked oxygen. what kind of organisms could not have lived under those conditions?

Cells harvest energy from food molecules by doing what?

Which would most likely lead to reduced bird populations? O A. Lack of land development OB. Overplanting an area O C. Introduction of non-native species O D. Increased insect populations

Which of the following is a nonvascular plant A. Wheat B. Dandelion C. Moss D. Oak tree

Write a 225 word report on why each of the factors (R, K, L, S, C, and P) are important factors needed to determine the amount of erosion that occurs on a piece of agricultural land.

In terms of biomass, deep ocean habitats are similar to___?

Select the correct answer. How is a conductor different from an insulator? A. The free movement of electrons within a conductor permits the transfer of charge. B. The free movement of protons within a conductor permits the transfer of charge. C.

Compare the hibiscus and spider lily pollen grain structure

Which macromolecule is responsible for catalyzing biochemical reactions?

The crystals of a mineral are always the same size.

Suppose two suspects in a crime have dna profiles that match the one dna fragment tested what should happen next