Teratogens affect the ____ more than any other part of the fetal body
A. central nervous system D. lower limbs
B. upper limbs E. external genitalia
C. heart
A
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When skeletal muscles contract such that bone segments to move closer together, this action is known as:
A. flexion B. extension C. lengthening contraction D. tetanus
In agriculture, male animals are often castrated to modify their behavior and to produce desirable qualities in the meat. What would you predict about hormone levels in castrated male animals?
A. Testosterone is high; follicle stimulating hormone (FSH) and luteinixing hormone (LH) are low. B. Testosterone is low; follicle stimulating hormone (FSH) and luteinixing hormone (LH) are high. C. Testosterone is low; follicle stimulating hormone (FSH) and luteinixing hormone (LH) are low. D. Testosterone is high; follicle stimulating hormone (FSH) and luteinixing hormone (LH) are high.
The chromosomes are moving to opposite
sides of the cell during
a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase
If a child has an AB blood type, ____
a. both parents must have different blood types b. neither parent can have blood type AB c. both parents must have blood type AB d. both parents can be any blood type e. one parent can have blood type O