Which is a key element that is found in all carbohydrates lipids proteins and nucleic acids?

A. Ammonia

B. Carbon

C. Nitrogen

D. Legumes

In both the iron sulfide hypothesis and the lipid membrane hypothesis, small, enclosed spaces are suggested as the precursors of the first cells. What benefit do small spaces provide in the formation of organic molecules?

What produces the sun's light and heat

Why is it necessary for each gemete to contain only half as many chromosomes as a body cell

Humans cut down trees in a location. This caused an increase in temperature and decrease in rainfall in that location. Which of these Earth systems interacted to produce this difference in climate?

A nurse identifies the following nursing diagnosis for a client with an infected leg ulcer: "Deficient Knowledge related to diminished peripheral circulation and wound care as evidenced by recurrent infected leg ulcer.

Which question can be answered using the scientific method? A) what was the highest temperature that was recorded yesterday? B) what is the most interesting aspect of the light dependent reactions?

Which of the following correctly describes a plant structure and how it aids in the process of cellular respiration? A. roots - collects water required for cellular respiration B. mitochondria - the site of cellular respiration C.

Why would a lab technician choose a bacterial artificial chromosome for cloning a gene rather than a plasmid?

What type of molecule that can be found in living things lacks carbon atoms

The major weakness of the job descriptive index (jdi) is that