Fossils of the earliest tetrapods should _____
A) show evidence of internal fertilization
B) show evidence of having produced shelled eggs
C) indicate limited adaptation to life on land
D) feature the earliest indications of the appearance of jaws
C
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You see a red, tubular flower with no distinct scent. It is likely pollinated by a _______
A. bird B. bat C. bee D. rodent E. beetle
A man has a mutation in the ATP synthase gene. This results in an inability to synthesize ATP properly, causing extreme muscle weakness. If this man has children, what is the likelihood that they will inherit this disease from him?
A. 100% B. 0% C. 50% D. 25% E. 75%
In this disease, the mucus-producing lining of
airways become inflamed and excrete excess mucus that becomes colonized by bacteria. This disease is
a. anemia. b. emphysema. c. asthma. d. bronchitis. e. atherosclerosis
The largest group of prokaryotes is the ________, which obtain both energy and carbon from ________
A) autotrophs; inorganic molecules B) chemoautotrophs; decaying organic material C) chemoheterotrophs; organic molecules D) photoautotrophs; light