What are the largest reservoirs of carbon dioxide and heat on Earth?
A) the atmosphere
B) the oceans
C) animal bodies
D) fossil fuels
B
Biology & Microbiology
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Ammonia is the most toxic of the three major forms of nitrogenous waste
A. true B. false
Biology & Microbiology
Do mycorrhizal symbioses occur between fungus and non-photosynthetic plants?
A. Yes; non-photosynthetic plants also need minerals. B. No; non-photosynthetic plants cannot provide organic compounds to fungi. C. No; non-photosynthetic plants do not need phosphate. D. Yes; non-photosynthetic plants can generate organic compounds without photosynthesis.
Biology & Microbiology
The most abundant gas in the atmosphere is
a. carbon dioxide. b. hydrogen. c. nitrogen. d. oxygen
Biology & Microbiology
The most abundant cell type in blood is the
A) basophil. B) neutrophil. C) erythrocyte. D) platelet. E) leukocyte.
Biology & Microbiology