At what level in a food chain do you find the most energy, biomass, and number of individuals? describe how energy flows through a food chain.

In a sexually reproducing species evolution could occur as a result of

If you had to group the planets into two groups based on their atmospheric conditions how would you group them and why?

Risk of using bio pharmaceuticals

This diagram shows the homologous structures in humans, horses, dolphins and bats. What do these homologous structures suggest about the ancestry of these four organisms? a. The four organisms are the same species. b.

A nurse is conducting an assessment of a client. Which client statement would indicate to the nurse that the client has a nonmodifiable risk factor for mental health problems? a) "My father was diagnosed with depression in his 40s.

What is the difference between a specific and a nonspecific defense?

Why is regualtion of the cell cycle important?

Which of the following is not water soluble?

If the concentration of oxygen in a body tissue cell is 5% and the concentration of oxygen in the blood surrounding the cell is 10%, which direction will the oxygen diffuse?

What is the type of allele that only affects the phenotype in the homozygous condition?