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Quiz 2
Question | Answer |
---|---|
Genes contain instructions for making DNA. | False |
Each human has 23 pairs of chromosomes in each cell. | True |
Stem cells are cells from which any other specialized type of cell can form. | True |
Because of cell specialization a cell for an arm can switch functions to develop an ear. | False |
Humans and chimpanzees have 99% of their genes in common. | True |
The first two weeks of prenatal development are called the germinal period. | True |
The determining factor in whether a preterm baby will survive or not is birth weight. | False |
Behavioral teratogens are those that harm the brain. | True |
A teratogen is a substance or disease that, when present, always results in a birth defect. | False |
A reflex is an involuntary response to a stimulus. | True |