The following panel illustrates the structure of the hippocampus. From the following choices, choose the appropriate names for each area indicated in the panel. ( outside, next, center
a. (A) CA1, (B) CA3, (C) Dentate gyrus
b. (A) CA3, (B) CA1, (C) Dentate gyrus
c. (A) Dentate gyrus, (B) CA1, (C) CA3
d. (A) Dentate gyrus, (B) CA3, (C) CA1
Answer: a. (A) CA1, (B) CA3, (C) Dentate gyrus
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Natural selection involves energetic trade-offs between _____
A) choosing how many offspring to produce over the course of a lifetime and how long to live B) producing large numbers of gametes when employing internal fertilization versus fewer numbers of gametes when employing external fertilization C) the emigration of individuals when they are no longer reproductively capable or committing suicide D) increasing the number of individuals produced during each reproductive episode and a corresponding decrease in parental care E) high survival rates of offspring and the cost of parental care
Which of the following situations will lead to natural selection?
a. The seeds of two plants land near each other and grow to similar sizes. b. Two types of fish eat the same kind of food have the same number of offspring. c. Male lions compete for the right to mate with females, with only one possible winner. d. A drought in an agricultural area leads to a loss of different types of crops and plants.
In mitosis, if a parent cell has 16 chromosomes,
each daughter cell will have how many chromosomes? a. 64 b. 32 c. 16 d. 8 e. 4
Which process occurs in both mitosis and meiosis?
A. crossing-over B. replication of DNA C. pairing of homologous chromosomes D. division of two cells into four haploid cells