A gene that when mutated leads to organisms with structures in abnormal places is termed
A. Dominant
B. Homologous
C. Parsimonious
D. Vestigial
E. Homeotic
E. Homeotic
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Which of the following statements about childbirth is false?
A. Babies are usually born head first with the face pointing upward. B. The placenta is expelled as a result of muscular contractions of the uterus. C. The baby goes through a series of movements to facilitate its passage through the pelvis. D. Caesarian sections involve the removal of the baby through an incision in the abdomen and uterus. E. None of the answer options is false.
Barbiturates are
a. depressants. b. stimulants. c. analgesics. d. hallucinogens. e. antipsychotics.
Which of the following is the major sign or symptom of mumps?
A) diarrhea B) nausea and vomiting C) deafness D) parotitis E) difficulty in breathing
Which of the following statements about species, as defined by the biological species concept, is (are) correct? I. Biological species are defined by a group of organisms that can successfully interbreed with each other.II. Biological species are the model used for grouping extinct forms of life.III. The biological species is the largest unit of population in which homologous structures can be identified.
a. II only b. I only c. II and III d. I, II, and III e. III only