If blood calcium ion concentration declines, ____ is released

a. thyroid hormone
b. insulin
c. glucagon
d. parathyroid hormone
e. calcitonin


d

Biology & Microbiology

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Explain how the terms diploid and haploid relate to human chromosome number in both autosomes and sex cells

What will be an ideal response?

Biology & Microbiology

The idea that organisms with genetically determined characteristics that make them better suited for the environment will have more surviving offspring is 

A. the inheritance of acquired characteristics. B. the Hardy-Weinberg concept. C. the theory of natural selection. D. convergent evolution.

Biology & Microbiology

Which of the following domains only contain one kingdom?

A. Fungi and Protista B. Bacteria and Fungi C. Animalia and Plantae D. Archaea and Bacteria E. Protista and Animalia

Biology & Microbiology

Gamma irradiation is effective for sterilization because it

A) damages molecules irreversibly. B) is non-ionizing. C) penetrates well. D) destroys protein function, although DNA is undamaged. E) is penetrating and causes extensive molecular damage.

Biology & Microbiology