The wing of a penguin is homologous to the wing of a butterfly.

a. true
b. false


b. false

Biology & Microbiology

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Which of the following is TRUE of xylem?

a. It conducts water downward in the plant. b. It transports food upward in the plant. c. It transports minerals and water throughout the plant. d. It transports material from stem to leaf. e. It supports the plant stem.

Biology & Microbiology

Paired lungs are characteristic of

a. some fishes. b. all amphibians. c. all birds. d. all mammals. e. all of these.

Biology & Microbiology

Sponge larvae:A

are miniature sponges that float about in the plankton. B. crawl along the bottom like an amoeba. C. are flagellated and able to swim. D. bud off the adult sponge. E. float out of the adult, fall to the bottom, and attach to form a new sponge.

Biology & Microbiology

Cancer cells secrete an activator of the enzyme ________ to degrade basal lamina and extracellular matrix and activate matrix metalloproteinases

Fill in the blank with correct word.

Biology & Microbiology