In angiosperms, pollen is the product of a haploid microspore dividing mitotically. Therefore, pollen is

A. a sporophyte.
B. a seed.
C. a gametophyte.
D. a spore.
E. sperm.


C. a gametophyte.

Biology & Microbiology

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Match the brain region to its function. Responses may be used multiple times or not at all a. thalamus b. cerebellum c. hippocampus d. brain stem

_____ coordinates complex motor tasks _____ involved in long-term memory _____ controls breathing and swallowing _____ controls balance _____ central relay center for sensory information What will be an ideal response?

Biology & Microbiology

In a prokaryotic operon, the region to which RNA polymerase binds is called

a. the heterogeneous nuclear DNA. b. the repressor gene. c. the promoter sequence. d. the operator sequence. e. all enhancer gene.

Biology & Microbiology

Typical ratios resulting from epistatic interactions in dihybrid crosses would be ________

A) 3:1, 1:1 B) 9:3:3:1, 1:2:1 C) 1:2:2:4:1:2:1:2:1, 1:2:1 D) 1:1:1:1, 1:4:6:4:1 E) 9:3:4, 9:7

Biology & Microbiology

After adolescence, bones stop growing longer. They do, however, continue to grow. Describe how bones remodel or undergo repair

What will be an ideal response?

Biology & Microbiology