You are given an organism to identify. It has a fruiting body that contains many structures with eight haploid spores lined up in a row. What kind of a fungus is this?
A) zygomycete
B) ascomycete
C) deuteromycete
D) chytrid
E) basidiomycete
Answer: B
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After leaving our left ventricle, blood next passes through the
A. vena cava. B. aorta. C. semilunar valve. D. atrioventricular valve. E. left atrium.
A given organism has 46 chromosomes in its karyotype. Therefore, we can conclude that it must _____
A) be human B) be an animal C) reproduce sexually D) have gametes with 23 chromosomes
The malarial Plasmodium is difficult for the human immune system to fight off because:
a. as the Plasmodium moves through its series of distinct developmental stages, it produces different cell surface proteins. d. as the Plasmodium moves through its series of distinct developmental stages, it produces different DNA-transcription enzymes. e. it mimics human white blood cells.
Urinary catheters pose risks of causing urinary tract infections because
A) they can introduce bacteria from the skin, anal, or external genital areas into the bladder. B) they provide a surface for bacterial biofilms to establish and they can introduce bacteria from the skin, anal, or external genital areas into the bladder. C) they provide a surface for bacterial biofilms to establish. D) they block urine flow out of the bladder. E) they block urine flow out of the bladder and they can introduce bacteria from the skin, anal, or external genital areas into the bladder.