A process called ____ proposes that species adapt and change due to the environment.
Fill in the blank(s) with appropriate word(s)
Answer: evolution
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Proteomics _____
a. refers to the analysis of the entire protein content of a cell b. refers to the analysis of all the DNA of a species c. looks only at plasmids d. studies mRNA levels e. uses DNA chips
The brief reversal of the electric gradient
across a neuron’s plasma membrane is called a(an)
a. action potential. b. resting potential. c. kinetic potential. d. threshold potential. e. energy potential.
Which step of the nitrogen cycle is not performed by most bacteria?
a. ammonification b. denitrification c. assimilation d. nitrogen fixation e. nitrification
Several types of untreated sexually transmitted diseases can lead to scarring in the oviducts of the female. This can potentially cause infertility if the scarring prevents the sperm from reaching the egg that has been released. What options might a
woman in this situation have if she wanted to conceive? What will be an ideal response?