Leukocytes identify intruder cells by their ____
A. shape
B. chromosomal pattern
C. rate of cell division
D. surface proteins
Answer: D
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Generally, data for ______ are presented in pie charts and bar graphs.
A. ordinal variables B. categorical variables C. ratio variables D. continuous variables
Animal researchers have used ______ to get around the problem that adoption studies cannot completely control for the influence of the prenatal or early postnatal environment.
A. embryo donation B. cross-fostering C. in vitro fertilization D. in vivo fertilization
What happens to an action potential when it comes to one of the nodes of Ranvier?
a. The action potential jumps from node to node, which is how it moves down the axon with great speed. b. The action potential gets rebounded back to the soma, where it has to be re-established. c. The action potential dissipates and fails to make it to the next neuron, which is why illnesses that cause the nodes of Ranvier are so devastating. d. The action potential causes neurotransmitters to be released from the node.
______ is NOT one of the DSM-5’s dissociative disorders.
a. Dissociative personality disorder b. Dissociative identity disorder c. Depersonalization/derealization disorder d. Dissociative amnesia