Photorespiration:
A. is a process similar to cellular respiration,
producing energy for plants.
B. occurs in equal parts with photosynthesis.
C. drives photosynthesis.
D. is indirectly related to temperature.
E. is due to rubisco being able to bind O2 as
well as CO2.
E
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What type of sensory receptors function in balance and sensing gravity?
A. mechanoreceptors B. photoreceptors C. nociceptors D. chemoreceptors
Periwinkle snails prefer to feed on the green alga Enteromorpha. In tide pools, Enteromorpha, which other alga
species, while in areas exposed at low tide, the red alga Chondrus outcompetes Enteromorpha. How did these feeding and competing interactions affect the algal populations?
a. Periwinkles decreased species richness in both tide pools and exposed areas. b. Periwinkles eliminated all of the less dominant algal species. c. Periwinkles eliminated the dominant algae entirely. d. Periwinkles decreased species richness when Enteromorpha is dominant, but increased species richness when Enteromorpha is competitively inferior. e. Periwinkles increased species richness when Enteromorpha is dominant, but decreased species richness when Enteromorpha is competitively inferior.
New data about rRNA led to the three-domain system of classification.
Answer the following statement true (T) or false (F)
Which of the following is not a characteristic of an r-selected population?
A. many offspring produced B. no parental care C. extensive homeostatic capacity D. short life span E. early age of reproduction