The ______________________ are cells which form bone.

a. Osteoclasts
b. Osteoblasts
c. Chondrocytes
d. Chief cells


Ans: b. Osteoblasts

Biology & Microbiology

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In DNA, most satellite sequences are found in

A) chromosome arms. B) telomeres. C) centromeres. D) spaces around the dark bands.

Biology & Microbiology

Which of the following choices does NOT correctly categorize the biological kingdom with the form of reproduction used by the organisms within it?

a. Protista: sexual reproduction, asexual reproduction, and conjugation b. Archaea: asexual reproduction only c. Animalia: both sexual and asexual reproduction d. Bacteria: asexual reproduction only e. Fungi: asexual reproduction only

Biology & Microbiology

The relatively short-term changes in allele frequencies within a species or population is

A. neither preserves nor rejects harmful variations in a population. B. preserves harmful variations and rejects favorable variations in a population. C. preserves favorable and harmful variations in a population. D. preserves favorable variations and rejects harmful variations in a population.

Biology & Microbiology

Lampreys differ from fishes in that lampreys

A) lack a backbone. B) lack an endoskeleton. C) lack jaws. D) possess a backbone and skull.

Biology & Microbiology