The body's defense and surveillance network of cells and chemicals that fight off bacteria and viruses is called the:
a. adrenal system c. hypothalamus
b. parasympathetic division d. immune system
D
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Which of the following statements best describes the importance of the negative poles at each psychosocial crisis?
a. The negative poles define specific types of mental illness. b. The negative poles reflect areas of vulnerability at each stage. c. The negative poles predict the possibility of criminal activity at a later stage. d. The negative poles highlight issues where the rights of the individual outweigh the rights of the group.
Which statement is most accurate in describing the order from smallest to largest?
a. zygote, genes, DNA, chromosomes c. DNA, zygote, genes, chromosomes b. genes, DNA, chromosomes, zygote d. DNA, genes, chromosomes, zygote
In Piagetian theory, a scheme is the mental structure underlying a coordinated and systematic pattern of behaviors or thinking applied across similar objects or situations
Indicate whether the statement is true or false
By __________, infants recognize the same melody when it is played in different keys
A) 2 to 4 months B) 4 to 6 months C) 6 to 8 months D) the end of the first year