Which of the following helps maintain the structure of chromosomes and control the activity of genes?

A) the nuclear membrane
B) proteins
C) centromeres
D) ribosomes


Answer: B

Biology & Microbiology

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Double fertilization in angiosperms results in:

A. a diploid embryo and a diploid endosperm. B. a diploid embryo and a triploid endosperm. C. a triploid embryo and a diploid endosperm. D. a diploid embryo and a haploid endosperm. E. a haploid embryo and a haploid endosperm.

Biology & Microbiology

Briefly describe their function. Rods and Cones

What will be an ideal response?

Biology & Microbiology

When an earthworm is underground, which type of receptors will relay information on directional movement?

a. lateral line organs b. otoliths c. cristae d. stereocilia e. statocysts

Biology & Microbiology

Why might multicellularity be advantageous to an organism?

What will be an ideal response?

Biology & Microbiology