Which of the following does an insect use to excrete
metabolic wastes from the body?
a. nephridium
b. flame cell
c. trachea
d. Malpighian tubule
e. siphon
Answer: c
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During replication, which enzyme unwinds the two strands of the DNA molecule from one another?
A. Helicases B. Ligases C. Unwindases D. Primases
You discover a fungus that is associated with plant roots, with hyphae that actually penetrate the root
cells and produces tree-like structures within the root cells. Into which group should you classify this fungus?
a. Glomeromycota b. Basidiomycota c. Chytridiomycota d. Zygomycota e. Ascomycota
The ability of a cell to move from the tissue to which it belongs to other parts of the body is known as
A) metastasis. B) contact inhibition. C) immune surveillance. D) angiogenesis.
The total resources a population consumes and the wastes it produces is its ____
a. ecological footprint b. vital capacity c. carrying capacity d. nonrenewable resources e. limiting factor