In this figure of teleost internal anatomy, which structure, A, B, C, or D, is the swim bladder?
1.A
2.B
3.C
4.D
1
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Structural features that contain the protein actin and help to strengthen and change the shapes of eukaryotic cells are known as ____
a. plastids b. vacuoles c. microvilli d. nucleoli e. microfilaments
A virus infects a host cell and takes over the host's mechanisms of replication and __________
synthesis. Fill in the blank(s) with the appropriate word(s).
What is the effect of the ?32 allele of CCR5 on HIV binding?
A) appears on the surface of CD4 T cells, but the HIV virion is unable to infect the host cell B) does not appear on the surface of CD4 T cells C) appears on the surface of the CD4 T cells and inactivates the virion upon binding D) interferes with binding of the virion to the CD4 receptor protein E) appears on the surface of the CD4 T cells and causes the virion to lyse upon binding
Which of the following is an INCORRECT pairing?
A. viruses; acellular parasites B. fungi; cell walls C. protozoa; multicellular D. prokaryotes; no nuclei