Evolution of segmentation in animals preceded further developments, such as

A. appendages.
B. survival if one segment is damaged.
C. more effective locomotion.
D. All of the choices are correct.


Answer: D

Biology & Microbiology

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Urine via catheter is:

a. acceptable. b. not acceptable.

Biology & Microbiology

Which of the following statements is NOT true of the

human female? a. She produces all the eggs that she ever will before she is born. b. The process of meiosis may take 30 to 50 years to complete. c. The primary oocytes lay dormant until puberty. d. She will normally produce more gametes than her male counterpart. e. It is possible that more than one egg will be released at ovulation.

Biology & Microbiology

As you look through the microscope, you observe a liver cell just beginning to enter mitosis. Identify the steps of mitosis that are listed in correct order.

A. prophase, B. metaphase, C. anaphase, D. telophase E. all of the above

Biology & Microbiology

Alleles are identical by descent if:

a. two individuals have the same parents. b. one allele mutates to second allele. c. selfing occurs. d. a recent common ancestor gave rise to two or more individuals with identical alleles. e. balancing selection maintains two or more alleles.

Biology & Microbiology