Superoxide dismutase protects cells from damage caused by ________.
A) ?O2-
B) O32-
C) H2O2
D) H3O+
A) ?O2-
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Identify the numbered items in the accompanying figure. Include the following terms in your description. • presynaptic neuron • postsynaptic neuron • neurotransmitters waiting to be released • neurotransmitters released by the nerve impulse • synapse • receptors with bound neurotransmitters
What will be an ideal response?
Which of the following animals is most like a
glyptodon?
a. dogs b. finches c. whales d. armadillos e. horses
Which statement is not true?
1.Erythrocytes are involved in the defense response. 2.Erythrocytes are the most abundant in the human body. 3.Erythrocytes are different than the neutrophils, lymphocytes, eosinophils, and monocytes. 4.Hemoglobin contains the element iron.
What is the function of a ribosome?
A) To direct transcription B) To attach amino acids to the appropriate tRNAs C) To unwind the double-stranded DNA helix to enable translation D) To hold mRNA and tRNAs in the correct positions to enable translation E) To make more mRNA