Which element's cycle depends on kinds of bacteria to keep the element available to other organisms?

A. carbon

B. hydrogen

C. nitrogen

D. phosphorus

The form of nitrogen listed below that can be utilized by most living things is: N2 H2NO3 NH3 None of these

Explain three ways to regulate metabolism through enzymes

When nerve cells establish a voltage across their membrane with a sodium~potassium pump, does this pump use ATP or does it produce ATP? Why? 2, Explain why the sodium·potassium pump would not be considered a cotransporter. 3.

Explain how osmosis differs from diffusion?

The scale of a road map indicates that 4 cm is equal to 30 km. Calculate the distance in km between two cities if the road between them is 10 cm long.

Which molecule crosses the plasma membrane by diffusion? oxygen glucose enzymes all of the above

Listening for sounds within the body defines?

Which characteristic is not shared by eukaryotic cells and prokaryotic cells? A. membrane enclosed organelles B. enzyme controlled reactions C. cell membranes D. cytoplasm

How is energy released from atp molecule?

What is the relationship between an amino acid and a protein?