cohesion-tension theory
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Transpiration pulls water in a continuous column. Works because of osmotic potential
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Diatoms are characterized by ____, and are the source of economically useful_____
a. calcium carbonate shells; ozone b. calcium carbonate sheaths; petroleum c. silica shells; diatomaceous earth d. silica sheaths; limestone e. silica carbonate shells; diatomaceous earth
What factors contribute to genetic variation in populations?
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Skeletal systems can serve all of the following purposes except:a
protection. b. allowing for movement. c. attachment for muscles. d. storage. e. contraction.
Match the letter of each example from childbirth to the appropriate component of a positive feedback loop.A. Pituitary gland secretes oxytocin, which acts on the uterusB. Uterine contractions increaseC. Fetus is pushed against uterine openingD. Receptors detect stretchE. Brain receives and compares stretch informationEffector
What will be an ideal response?