A goiter is caused by a deficiency in

a. thyroxine.
b. triiodothyronine.
c. calcium.
d. iodine.
e. both thyroxine and triiodothyronine


D

Biology & Microbiology

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The steps of the scientific method, in the correct order, are

A) design experiments, draw conclusions, collect data, interpret results, make observations, and test the hypothesis. B) make observations, formulate the hypothesis, design experiments, collect data, interpret results, and draw conclusions. C) collect data, interpret results, test the hypothesis, design experiments, make observations, and draw conclusions. D) collect data, interpret results, test the hypothesis, make observations, and design experiments. E) none of the above.

Biology & Microbiology

What is the monomer of the DNA molecule?

A) Polynucleotide B) Monosaccharide C) Nucleotide D) Peptide

Biology & Microbiology

A joint that is movable in only two dimensions, such as the elbow, is called a ________ joint

Fill in the blank(s) with correct word

Biology & Microbiology

The modification of a limb that was used for walking in a preexisting ancestor to one that is used as a wing for a species today is called proteomics.

Answer the following statement true (T) or false (F)

Biology & Microbiology