Mendel had experience in the fields of _______ and _______
A. Physics, mathematics
B. English
C. Psychology
D. Biology
E. None of these
A
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Recall that photosynthetic rates remain relatively constant in regions near the equator. Imagine that tropical environments persisted throughout Earth's northern and southern hemispheres (i.e., Earth's entire climate mirrored that near the equator)
If Keeling had collected his atmospheric CO2 data on such an Earth, what would you expect the Keeling Curve to look like? A. a straight line sloping upward (atmospheric CO2 levels do not seasonally oscillate, but have increased over time) B. a straight line sloping downward (atmospheric CO2 levels do not seasonally oscillate, but have decreased over time) C. a sinusoidal curve sloping upward (atmospheric CO2 levels fluctuate seasonally, but increase over time) D. a sinusoidal curve sloping downward (atmospheric CO2 levels fluctuate seasonally, but have decreased over time) E. a straight line without a slope (atmospheric CO2 levels have remained constant over time)
A population's age structure tracks ____
a. the average age of the members of the population b. how long the population has existed in the area c. the rate at which the population is aging d. the relative numbers of each age e. death rate
This procedure makes possible the synthesis of large quantities of proteins.
A. recombinant DNA technology B. stem cell transfer C. somatic cell transfer D. proteomics
The accumulation of free oxygen in the atmosphere ____.
A. was a result of the accumulation of a by-product of a type of photosynthesis B. caused the further spontaneous generation of life C. provided the opportunity to extract more energy through anaerobic respiration D. occurred immediately after the earth was formed E. allowed for DNA to replace RNA as the primary data storage molecule