Both cyanobacteria and phytoplankton are
A) multicellular.
B) eukaryotic.
C) photosynthetic.
D) parasitic.
E) heterotrophic.
C
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Drugs, such as cocaine and nicotine, mimic the action of neurotransmitters
a. True b. False Indicate whether the statement is true or false
Uracil pairs with
a. ribose. b. adenine. c. cytosine. d. thymine. e. guanine.
African sleeping sickness is caused by Trypanosoma brucei, a unicellular flagellated protist infects red blood cells after being injected into the blood stream. African sleeping sickness is transmitted by:
a. Ingesting food b. Contaminated water c. Sexual intercourse d. The bite of an insect e. Exhaled aerosols
The probability of parents with the genotypes (Ll) (ll) having an offspring with the genotype (ll) is
A. 1/2. B. 1/4. C. 3/8. D. 0.