Consider the biomass of the Jack pine trees in this pyramid. If the biomass of one Jack pine equals 12000 kg/m2/year, than what is the predicted biomass of the tertiary consumer level?

What air pollutant that is released due yo human activity? A) carbon dioxide B) nitrogen dioxide C) toxic dioxide D) all of these are air pollutants caused by humans

Mildred is a 74-year-old woman in good health. when asked who she expects to take care of her when she can no longer care for herself, mildred (like most elderly americans) expects that she will be taken care of by her:

Compare and contrast the three main types of muscle tissue.

How is an article like "Hollywood and Forensic Science" different from a short story?

Can codominance occur in offspring that are not heterozygous?

Which natural polymer contains 3,000 or more glucose monomers? starch protein cellulose nucleic acid?

Which one of the following is an example of a prokaryote?

1. What is a macromolecule? Name four macromolecules present in all living things and identify what they have in common.

Which of the following are autotrophs? Choose all that apply. a) grasshopper b) cow c) fungi d) grass e) wheat f) algae

What do heating systems, cooling systems, and heat engines have in common? They deactivate thermal energy. They create thermal energy. They destroy thermal energy. They transfer thermal energy.