At what depth would water pressure be 4 times greater than atmospheric pressure at the surface?
a. 10 meters
b. 20 meters
c. 30 meters
d. 40 meters
e. 50 meters
D
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Would a chemical that is cytotoxic to brine shrimp cells necessarily have the same effect on Fast Plant cells? Explain.
What will be an ideal response?
How can only four nucleotides account for the extreme diversity of traits within living things?
a. The biochemical structure of nucleotides differs between cell types. b. The nucleotides can base pair with any other nucleotide. c. Nucleotides are arranged in many different sequences. d. Different proteins can be encoded from the same DNA sequence. e. Complex organisms have more than four types of nucleotides.
Which endocrine gland is the main center for control of the internal environment?
a. pineal b. hypothalamus c. thyroid d. adrenal cortex e. thalamus
The light reactions of photosynthesis take place ________
A) in the stroma B) in the mitochondria C) in the thylakoid membrane D) in the cytosol