Which of the following are the respiratory openings in insects?

a. spiracles
b. trachea
c. chitins
d. cephalothorax


a. spiracles

Biology & Microbiology

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Which one of the following amino acids is most likely to participate in hydrogen bonding with water?

A. alanine B. asparagine C. leucine D. phenylalanine E. valine

Biology & Microbiology

The entire set of genetic material of a given individual is its ____.The entire set of genetic material of a given

individual is its ____.

a. genome b. plasmid c. vector d. library e. recombinants

Biology & Microbiology

Nonkinetochore microtubules do not connect to chromosomes

1.True 2.False

Biology & Microbiology

The region of the human brain is that is critically important for monitoring and controlling movements is the

A. cerebral cortex. B. hypothalamus. C. cerebellum. D. basal nuclei. E. medulla oblongata.

Biology & Microbiology