Which iodine containing hormones are produced by the thyroid gland?
Answer: thyroxine and triiodothyronine
Biology & Microbiology
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The most important feature of a protein is its
A. secondary structure. B. side group. C. shape. D. electric charge.
Biology & Microbiology
Regardless of its shape, a given orbital may contain no more than:
A. 1 electron. B. 4 electrons. C. 8 electrons. D. 2 electrons.
Biology & Microbiology
Which of the following is NOT accurate about the shoot apical meristem?
A. Its central zone maintains actively dividing cells. B. It gives rise to stems, leaves, and flowers. C. Its peripheral zone contains dividing and differentiating cells. D. It is found in the central region of the seedling. E. It has an organizing center that preserves the correct number of stem cells.
Biology & Microbiology
Earth is tilted about how many degrees on its axis?
a. 8 b. 15 c. 23 d. 30 e. 38
Biology & Microbiology