6. the total mass of living tissue at each trophic level
can be shown in a(an)
a. energy pyramid.
b. pyramid of numbers.
c. biomass pyramid.
d. biogeochemical cycle.

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u. s. fish and wildlife service

Explain how organisms could be harmed by high levels of salt from roadways?