In humans, how many layers of cells are formed during gastrulation?
a. One
b. Two
c. Three
d. None
c. Three
Three layers of cells are formed during gastrulation—the endoderm, mesoderm, and ectoderm—because humans are triploblasts.
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Which statement is true with regard to human population growth?
A) It is at a zero reproduction rate. B) Its rate of increase continues to grow at an exponential rate. C) Its rate of growth is slowing. D) Its rate of growth is increasing. E) There is no scientific prediction that can be made about human population growth.
Some antimicrobial chemicals are considered to be disinfectants and antiseptics
Indicate whether the statement is true or false
What is the term given to a group of individuals belonging to the same species that live in a defined geographic area that actually or potentially interbreed?
A) population B) consanguinity C) cytogenetics D) genetics E) hybrid vigor
Gene therapy is ________
A) able to treat any type of cell no matter where it is in the body B) not a good candidate for cancer therapeutics C) an example of translational medicine D) capable of treating diseases associated with an unknown gene