Why does the blastocyst implant on the uterine wall?

A. To maintain warmth
B. To form the zygote
C. To create the neural tube
D. To provide nourishment


Answer: D

Psychology

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In depth perception, different views are received by each eye, depending on the distance of the object being viewed. What is this called?

a. retinal disparity b. amblyopic differential c. astigmatic contrast d. contrasting imagery

Psychology

According to Vivienne Cass' model of coming out, the person realizes the inaccuracy of dividing the world into "good gays and lesbians" and "bad heterosexuals" in ____

a. Stage 3: Identity tolerance c. Stage 5: Identity pride b. Stage 4: Identity acceptance d. Stage 6: Identity synthesis

Psychology

What stage emphasizes that children are yet unable to perform mental operations?

a. sensorimotor b. preoperational c. concrete operational d. formal operational

Psychology

In its resting state, a neuron is said to be

A) polarized. B) depolarized. C) hypopolarized. D) hyperpolarized. E) firing.

Psychology