You have entered a 5K race. As you finish the last 50 yards you are breathing harder than at the start of the race and sweating profusely. This is an example of the _______________law of thermodynamics because ______ is increasing
A. first; entropy
B. second; entropy
C. first; body temperature
D. second; body temperature
E. None of these choices are correct; overall
energy levels have not changed.
Answer Key: B
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have gone extinct?
a. 10 b. 25 c. 55 d. 75 e. 99
Respiration
a. is only necessary for mammals. b. in most animals involves both the circulatory and respiratory systems. c. must occur over a dry surface. d. is an anaerobic process. e. is only necessary for mammals, and must occur over a dry surface
Which of the following is insoluble in water?
A) DNA B) Salt C) Sucrose D) Amino acids E) Olive oil
Most genetic disorders of humans are caused by
A) multiple alleles. B) recessive alleles. C) a mutation that occurs in the egg, sperm, or zygote. D) dominant alleles.