The neurotransmitter, ________, has an excitatory effect on skeletal muscle, causing it to contract

Fill in the blank(s) with correct word


acetylcholine

Biology & Microbiology

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Atoms in which the number of electrons does not equal the number of protons are known as:

A. valences. B. isomers. C. isotopes. D. ions.

Biology & Microbiology

Which of the following statements is a correct explanation for the observation that all offspring exhibit a phenotype for a particular trait that appears to be a blend of the two parental varieties?

A) Neither of the parental genes is dominate over the other. B) The genes for the trait are dominant in both of the parents. C) The genes are linked and do not separate during meiosis. D) The genes for the trait are recessive in both of the parents.

Biology & Microbiology

Rank these plant types from those that undergo senescence soonest after seed germination to those that live longest.____ biennial____ herbaceous perennial____ woody perennial____ annual

What will be an ideal response?

Biology & Microbiology

The outermost layer of a virion fulfills which of the following functions of the virus?

A. protection B. recognition C. replication D. both protection and recognition E. both recognition and replication

Biology & Microbiology