The age structure diagram for countries with a 6.5
total fertility rate is indicated by
a. A.
b. B.
c. C.
d. D.
e. none of these.
Answer: a
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Which part of a neuron is associated with receiving information?
A. dendrite B. cell body C. axon D. synapse
Fertilization of an egg in vitro, leading to separation of individual cells from the 8-cell stage for implantation into a surrogate mother is called ________
Fill in the blank(s) with correct word
Which of the following statements about ribosomes is false?
A) A ribosome consists of two subunits. B) Ribosomal subunits are made of proteins and ribosomal RNA. C) The ribosomes of prokaryotes and eukaryotes are the exactly the same in structure and function. D) Each ribosome has two binding sites for tRNA molecules.
The typical lesion of primary syphilis is
A. purulent sore throat. B. a generalized rash. C. the development of buboes in the lymph nodes at the site of infection. D. a painless reddened lesion called a chancre at the site of infection. E. gummas in bones, in nervous tissues, or on the skin.