How many additional electrons will chlorine need to obtain in order to have a complete outer orbital shell?
a. 2
b. 4
c. 1
d. 5
e. 3
c
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Which of the following statements is NOT true of protistan cysts?
A. They may arise from asexual reproduction. B. They may arise from sexual reproduction. C. Their consumption can lead to human health problems. D. They facilitate the spread of pathogens from one host to another. E. They attach to host cells by small hooks.
Which of the following is a benefit of a nematode’s cuticle?
a. protecting against predators b. promoting rapid growth c. ensuring efficient digestion d. maintaining a stable temperature
You observe an individual of your favorite study organism expressing the dominant phenotype for a certain trait. How would you go about determining if the individual was homozygous dominant or heterozygous for that trait?
What will be an ideal response?
A free nucleotide has a five-carbon sugar (deoxyribose), ____________________ phosphate group(s), and ____________ of four nitrogen-containing bases.
Fill in the blank(s) with the appropriate word(s).