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

Biology & Microbiology

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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.

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology

According to Mendel, what kinds of genes

“disappear” in F1 pea plants? a. sex-linked b. dominant c. recessive d. codominant e. lethal

Biology & Microbiology