Which of the following is a land plant that has flagellated sperm and a sporophyte-dominated life cycle?
A) fern
B) moss
C) liverwort
D) charophyte (stoneworts)
E) hornwort
Answer: A
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Which of the following events occurs in blood in body tissue?
a. free H+ releases from hemoglobin. b. erythrocyte HCO3 ? enters the plasma. c. in the plasma, HCO3 ? and H+ convert into CO2 and H2O. d. in erythrocytes, carbonic anhydrase converts HCO3 ? and H+ into CO2 and H2O. e. CO2 binds to hemoglobin.
An unpressurized autoclave would not be able to sterilize a growth medium with contaminating bacteria but could still pasteurize it
Indicate whether the statement is true or false.
Bird respiration is extremely efficient because birds possess
a. a very long trachea. b. lungs. c. nares. d. air sacs. e. air bladders.
What would happen if complexes I-IV of the electron transport chain pumped protons in the opposite direction?
A. There would be too many electrons in the mitochondrial matrix. B. Too much ATP would be synthesized. C. None of the other answer options is correct. D. No ATP would be synthesized.