What organism usually fixes nitrogen into usable chemical forms?

It is what a manufacturer spends for goods or services. a) cost b) price c) markup

when does the paramecium pump out more water, when there is a high salt concentration or when there is a low salt concentration surrounding the paramecium?

TP53 is a recessive gene and is not located on the X chromosome, why would people who inherit just one mutant copy of a recessive tumor-suppressor gene be at higher risk of developing cancer than those without the recessive gene?

Where does fertilization occur

N an oil spill, why does the oil not mix with the sea water? Lipids are hydrophobic. Lipids are hydrophilic. Lipids are saturated. Lipids are unsaturated.

Cells in multi-cellular organisms A) All look the same B) All have the same function C) Are often quite different from each other D) Are the same size in every part of the organism

Why is it necessary to cool a hot supersaturated solution slowly during a recrystallization?

Name the two energy-equivalent molecules that contain three phosphates as part of their structure. what makes these two molecules different? how many high energy phosphate bonds do they contain? nutrition

During what period of time has the sunbelt region of the u. s. grown most quickly?

The axial skeleton includes the A) vertebra, skull, and ribs B) hip bones, knees, and feet C) shoulder bones, elbows, and hands D) bones of the fingers and toes