Caribbean seagrasses are extensively fed on by all except
a. manatees.
b. green sea turtles.
c. some sea urchins.
d. sea cucumbers.
D
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A person with O type blood
A. lacks all of the alleles for ABO blood type. B. lacks A and B antigens. C. is called a universal recipient. D. could not have the Rh factor.
Polyunsaturated fats ____
a. have fewer hydrogen atoms than do saturated fats b. are more characteristic of animal fats than plant fats c. have no double bonds d. are solid at room temperature e. are gas at room temperature
The hinge region of an antibody has a hypervariable amino acid region where the antigenic determinant fits.
Answer the following statement true (T) or false (F)
The multiple sites of DNA replication along eukaryotic chromosomes are known as
A) replicons. B) centromeres. C) telomeres. D) plasmodesmata. E) targets of rapamycin.