Which of the following stimuli will NOT activate a nociceptor?
A. extremes in temperature
B. very intense mechanical stimulation
C. specific chemicals in the extracellular fluid
D. chemicals released by injured cells
E. external odorant molecules
E. external odorant molecules
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Which of the following would be classified as a tropic hormone? Select all correct choices
A. thyroid-stimulating hormone (TSH) B. oxytocin C. adrenocorticotropic hormone (ACTH) D. estrogen E. somatostatin
Translation ends when a stop codon in the ____ site allows a ____ to bind there
a. P; release factor b. A; terminator tRNA c. E; terminator tRNA d. A; release factor e. P; terminator tRNA
Biological membranes contain bilayers containing mostly ________.
A. cholesterol B. oils C. phospholipids D. triglycerides E. prostaglandins
In a meristematic region, the cell plate during mitosis is perpendicular to the side of the stem. In what direction will the stem grow?
A) laterally in width B) vertically in height C) at a 45-degree angle from the ground D) away from the sun