A pellicle is a(n)
a. defensive organ.
b. covering.
c. organelle of motion.
d. storage organ.
e. component of the nucleus.
Answer: b
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A burn patient is treated with a skin graft, in which healthy skin containing ______ tissue is transplanted from one part of their body to the burned area.
A. connective B. nervous C. muscle D. epithelial
The distribution of the genetic disorder called sickle-cell anemia is correlated with the distribution of
malaria in tropical countries. This is an example of
a. heterozygote advantage. b. frequency-dependent selection. c. a genetic bottleneck. d. genetic drift. e. evolutionary convergence.
Where does production of sexual spores in ascomycetes occur?
a. in sporangia b. in zygospores c. in asci d. in conidiophores
Answer the following questions true (T) or false (F)
1. Eukaryotic ribosomes are composed of 50S and 30S subunits. 2. Lysosomes result from the endocytosis of food particles by eukaryotic cells. 3. The presence of a glycocalyx contributes to bacteria's ability to cause disease.