An energy pyramid illustrates ____.
A. the first law of thermodynamics
B. the diminishing of usable energy as it is transferred through an ecosystem
C. that energy can be recycled
D. the biological magnification of materials in an ecosystem
E. the diminishing number of organisms at each trophic level
Answer: B
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In the kidney, the specialized transport proteins that allow for very rapid fluid movement into or out of cells are known as
A) aquaporins. B) porins. C) ionophores. D) anion exchange proteins. E) osmosins.
Discuss the difficulties in studying the genetics of human behavior traits
What will be an ideal response?
Four of these factors play a role in phylogeny. Which one does not?
a. number of digits b. DNA sequence for a gene c. amino acid sequence of an enzyme d. number of petals e. number of individuals
________ is the partial measure of the internal energy of a system, also known as the heat content
Fill in the blank with correct word.