A plant lacking this macronutrient is likely to be deficient in which step of root nodule development?
A. phosphorus; development of infection threads
B. phosphorus; curling of root hairs around rhizobia
C. calcium; flavonoid release
D. calcium; curling of root hairs around rhizobia
Answer: D
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Once glucose is converted into the 2 pyruvates what will happen to them next? a. They will be reduced down in the cytoplasm
b. They will move into the mitochondria. c. They will move into the electron transport chain. d. Glucose is not converted into pyruvates. e. They will be stored as starch.
By the end of the Devonian period, which of the following plants populated the landscape?
a. flowering plants and trees b. mosses and other bryophytes c. ferns, horsetails, and seed plants d. algae and early vascular plants
Unsanitary and crowded conditions increase the incidence of all of the following diseases EXCEPT
A) plague. B) epidemic typhus. C) endemic murine typhus. D) Rocky Mountain spotted fever. E) relapsing fever.
What is the most likely explanation for the extinction of giant kangaroos in Australia?
a. glaciers b. asteroids c. hunting d. giant squid