Which gland responds to light and is involved in daily rhythms in some animals?
A) Pineal B) Adrenal C) Thymus D) Pancreas E) Pituitary
A
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Which one of the following is not part of the scientific method?
A. experimentation B. theory C. prediction D. fact E. hypothesis
Membrane potential cannot exceed +30 mV, because when it reaches this level, gated sodium channels close, and:
a. potassium only moves across the cell membrane via passive transport proteins b. sodium only moves across the cell membrane via passive transport proteins c. potassium gated channels open d. potassium flows into the cytoplasm e. the action potential is not propagated
Which of the following serves as both reactant in photosynthesis and product in cellular respiration?
-O2 -CO2 -H2O -a and b -b and c
Based on what happened with tobacco and, more recently climate change, which of the following is key to scientific consensus?
What will be an ideal response?