Which of the following organisms is mismatched with their organs of excretion?

A. Malpighian tubules - reptiles
B. Kidneys - humans
C. Earthworms - nephridia
D. Planarians - flame cells


Answer: A

Biology & Microbiology

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Perforin is produced by

A. B cells. B. macrophages. C. NK cells. D. T helper cells. E. macrophages AND NK cells.

Biology & Microbiology

What avenues of research would probably not help determine if asexual organisms form species?

a. determine if a cluster of bacteria constitutes a species b. explore various niches in which different populations reside c. look into previously undiscovered types of bacteria d. genomic research e. hybridizing polyploid plants

Biology & Microbiology

Gymnosperms (such as conifers) and angiosperms (such as lilies) differ in that only the angiosperms have

a. lignified transport tissues. b. leaves. c. seeds. d. fruits. e. swimming sperm.

Biology & Microbiology

Which of these groups is characterized by having a TRUE coelom?

A) Roundworms B) Arthropods C) Cnidarians D) Flatworms E) Sponges

Biology & Microbiology