All of the microtubules are the same length, and homologous chromosomes are aligned midway between the spindle
poles at ____.
a. telophase I
b. metaphase I
c. anaphase I
d. metaphase II
e. anaphase II
ANSWER: b
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Salt marshes differ from estuaries in that the freshwater input in salt marshes is from a single source.
Answer the following statement true (T) or false (F)
Which mechanism of nutrient acquisition is not seen in bacteria?
A. Group translocation B. Endocytosis C. Facilitated diffusion D. Simple diffusion E. Active transport
Which one of the following diagnostic imaging techniques does NOT expose the patient to additional radiation?
A) X- rays and ultrasounds B) ultrasounds and PET scans C) ultrasounds and MRI D) PET scans and MRI E) PET scans and X-rays
The host range of a virus is determined by _____
A) the enzymes carried by the virus B) whether its nucleic acid is DNA or RNA C) the proteins in the host's cytoplasm D) the proteins on its surface and that of the host