Metaphase is characterized by _____
A) aligning of chromosomes on the equator
B) splitting of the centromeres
C) cytokinesis
D) separation of sister chromatids
A
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In a woman’s monthly cycle, the hormone _____ is released when estrogen reaches a peak
a. luteinizing hormone b. oxytocin c. progesterone d. testosterone e. human chorionic gonadotrophin
Homologous structures, such as a bat wing and dolphin flipper,
A) are structures that did not develop in response to natural selection. B) are formed from genes on the same pair of chromosomes. C) are the result of pairs of chromosomes that are identical in bats and whales. D) have the same underlying structure due to inheritance from a common ancestor. E) are similar externally but have different basic structures and were probably not derived from a common ancestor.
When growth proceeds at a rate similar to 2 ? 4 ? 8 ? 16 ? 32 ? 64...etc., it is called
Select one: a. arithmetic growth. b. additive growth. c. exponential growth. d. zero population growth. e. carrying capacity.
GM foods are controversial for many reasons. Which of the following does not represent a controversy between advocates and critics of GM foods?
A) GM foods cause disease in consumers. B) GM foods have an unknown impact on consumers. C) GM foods have an unknown impact on the environment. D) GM foods increase yields on farm land.