Toward the end of the Proterozoic eon, multicellular animals emerged. The first animals were
A. Fish.
B. Reptiles.
C. Invertebrates.
D. Chordates.
E. Tetrapods.
C. Invertebrates.
Biology & Microbiology
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A(n) ____ provides nutrients in germinating seedlings of eudicots
a. suspensor b. epicotyl c. hypocotyl d. endosperm e. cotyledon
Biology & Microbiology
How many daughter cells are produced in meiosis?
a. 0 b. 1 c. 2 d. 4
Biology & Microbiology
Most species of Gram-positive bacteria are
a. photoautotrophic. b. photoheterotrophic. c. chemoautotrophic. d. chemoheterotrophic. e. photochemoautotrophic
Biology & Microbiology
The B form of the DNA double helix contains a wider major groove and a narrower minor groove because the two polynucleotide strands are not positioned directly opposite one another in the helical cylinder.
Answer the following statement true (T) or false (F)
Biology & Microbiology