What is the site of protein synthesis in the cell?
A) Smooth endoplasmic reticulum
B) Ribosome
C) Nucleolus
D) Nucleus
E) Eukaryotic chromosome
B
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The nucleotides in one strand of DNA are held together by:
A) hydrogen bonds between complementary bases. B) hydrogen bonds between phosphates. C) bonds between the sugar of one nucleotide and the base of the next. D) bonds between the phosphate of one nucleotide and the base of the next. E) links between the sugar of one nucleotide and the phosphate of the next.
The coral organisms on a coral reef cannot be replaced by any other organism. For that reason, we identify those species as:
A) ecological dominants. B) symbiotic species. C) mutualistic species. D) keystone species.
Name the process by which a cell makes a copy of its DNA so it can give complete and identical copies of all of its genes to each daughter cell.
What will be an ideal response?
If the midbrain of a fish became damaged it would harm its ability to _____
A) swim B) see C) hear D) smell E) eat