Which is NOT an example of an alien or exotic species?
a) introduction of Nile perch into Lake Victoria
b) bison in the United States
c) the mongoose brought to Hawaii to control rats
d) zebra mussels introduced into the Great Lakes
e) the brown tree snake in Guam
Ans: b) bison in the United States
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Which structure or compartment is part of the symplast?
A) the interior of a vessel element B) the interior of a sieve tube C) the cell wall of a mesophyll cell D) an extracellular air space E) the cell wall of a root hair
Which is a reason why most exotic species’ introductions fail?
a. inability of the species to adapt to its new environment b. close oversight by environmental regulatory agencies c. overharvesting of the species for commercial purposes d. limitations on the transportation of invasive species
According to Mendel, what kinds of genes
“disappear” in F1 pea plants? a. sex-linked b. dominant c. recessive d. codominant e. lethal
The type of tissue represented by the accompanying figure is:
a. adipose tissue.
b. cardiac tissue
c. cartilage.
d. simple squamous epithelium.
e. elastic connective tissue.