Strictly speaking, mitosis and meiosis are divisions of the
A) cytoplasm.
B) nucleus.
C) nucleus and chromosomes.
D) chromosomes.
E) nucleus, cytoplasm, and chromosomes.
C
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The junction of the upper vagina and the uterus is called the _____
A) fallopian tube B) clitoris C) oviduct D) labia majora E) cervix
Which of the following represents a blind study?
A. The test group does not know whether they are receiving a placebo or the actual treatment, but the researchers do. B. Neither the test group nor the researchers know whether the test group is receiving a placebo or the actual treatment until all the data are collected. C. The test group knows whether they are receiving a placebo or the actual treatment, but the researchers do not know until all the data are collected. D. The test group knows whether they are receiving a placebo or the actual treatment, and so do the researchers.
How do we know that the atmosphere of the earth experienced an increase in O2 and became oxidizing between 2.5 and 2 billion years ago?
What will be an ideal response?
Ginkgo extracts have been used in the
treatment of
a. Parkinson’s disease. b. Alzheimer’s disease. c. cystic fibrosis. d. sickle cell disease. e. malaria.