Which organisms are single-celled and lack a nucleus?
a. bacteria and archaea
b. fungi and bacteria
c. archaea and protists
d. fungi and archaea
e. bacteria and protists
ANSWER: a
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To further reduce the possibility of biological contamination, MOST treatment plants treat the effluent with
A) fluorine. B) chlorine. C) ozone. D) extreme heat.
If you share 99% of your nucleotide sequence with a chimpanzee and only 50% of your alleles with your own daughter, why aren't you more closely related to the chimpanzee than your own daughter?
What will be an ideal response?
Genetic change due to the migration of fertile individuals or gametes between populations is
a. gene flow b. bottleneck c. genetic drift d. mutations e. microevolution
A(n) ________ is an example of an organism that can sometimes reproduce asexually by parthenogenesis
A) cat B) human C) Komodo dragon D) mouse