The rate of transpiration increases under all of the following conditions except:a
increased wind.
b. increased humidity.
c. increased temperature.
d. presence of sunlight.
e. an increase in dry air.
B
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Use the following study to answer the following question(s): A researcher applies varying amounts of fertilizer (0, 2, 4, 8, 10 units) to 50 potted tomato plants. All other variables that may affect the outcome (watering, temperature, sunlight, plant size, etc.) are kept the same from pot to pot. At the end of the growing season, the tomatoes grown on each plant are weighed to determine which fertilizer level produced the largest tomato yield.Which variable is the independent variable?
A. The fertilizer amount B. The tomato yield at the end of the growing season C. The plant size at the end of the growing season D. The temperature
A cell is minimally defined by ____
a. a nucleus that contains DNA b. an organized chemical system and specialized molecules surrounded by a membrane c. an organized chemical system for harnessing energy d. a membrane comprised of phospholipids e. specialized molecules that respond to their environment
Direct Interaction with Regulatory Proteins
What will be an ideal response?
The courtship rituals of many related animals are highly species-specific and prevent the related species from mating. This is an example of
A. habitat preference. B. ecological isolation. C. seasonal isolation. D. behavioral isolation.