A substance that speeds up reactions in your body is known as
A) a placebo
B) fiber
C) a vitamin
D) an enzyme
Ans: D) an enzyme
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When selecting among multiple possible phylogenetic trees that fit our data, we use the principle of ____ , which means we choose the ____ possible hypothesis
In phylogenetic analysis, that means selecting the tree that represents the ____ evolutionary changes or mutations. Fill in the blank with the appropriate word.
This STD typically only infects women and
infected women have a yellowish discharge from their vagina which is also sore and itchy. This STD is
a. chlamydia. b. gonorrhea. c. syphilis. d. trichomoniasis. e. genital herpes
Which of the following is a function of the plasma membrane?
A) regulate the traffic of chemicals in and out of the cell B) regulate the production of lipids in the cell C) regulate the production of DNA in and out of the nucleus D) regulate the production of proteins in the cell
These are used as the basis of comparison when two samples of DNA are suspected of being from the same person.
A. fingernail samples B. restriction enzymes C. variable number tandem repeats (VNTRs) D. restriction fragments