M checkpoint
What will be an ideal response?
cell monitors spindle formation and attachment to kinetochores
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Nitrogen fixation is used to form ATP, which is then used for energy reserves.
Answer the following statement true (T) or false (F)
It has been proposed that the first living organisms were:
a. heterotrophs. b. autotrophs. c. chemosynthetic. d. photosynthetic. e. multicellular.
Hemoglobin gives up O2 when
a. partial pressure of oxygen is lower than in the blood. b. body temperature is lowered. c. pH values are high. d. CO2 concentrations are low. e. O2 concentrations are high.
Over a span of two decades, scientists measured changes in the beak size of a population of Galápagos ground finches. This ________
A) provided evidence of natural selection in action B) is an example of artificial selection C) is an example of overproduction D) led Darwin to his theory of evolution through natural selection