The cardiovascular system is limited to just the heart and the blood.
Answer the following statement true (T) or false (F)
False
The cardiovascular system consists of the heart, the blood, and the vessels the blood moves through.
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Which purine base forms 3 hydrogen bonds when binding its complementary nucleotide base?
A. guanine B. cytosine C. thymine D. uracil E. adenine
Mineral uptake in plants occurs by way of:
a. leaves b. roots c. stems d. phloem e. flowers
Select the best response to the question. ?What is a risk factor for contracting tapeworm or hookworm?
A) poor sanitation B)living or traveling in the Middle East C) living in a nursing home D) young age
Mycoplasmas are pleomorphic because they
A. have no cell walls. B. are low G + C content Gram-positive bacteria. C. exhibit snapping division. D. have sterols in their cytoplasmic membranes. E. produce endospores.