Which of the following human populations likely evolved lactase persistence?
a. populations living on islands
b. populations in which milk is a component of the diet throughout an individual’s life
c. populations in which milk-derived products are essential for young individuals
d. Lactase persistence will evolve in any population that has a strong need for digesting milk.
B
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In the chloroplast, cytochrome b6f is an important complex in the photosynthetic electron transport chain because it accepts electrons from photosystem II and donates them to photosystem I
Another vital function of cytochrome b6f is that during its reduction-oxidation cycle it pumps ______ from the _____. A. hydrogen ions; stroma into the thylakoid B. electrons; stroma into the thylakoid C. hydrogen ions; thylakoid into the stroma D. electrons; thylakoid into the stroma
Which human brain lobe, A, B, C, or D, is the occipital?
1.A
2.B
3.C
4.D
The specific heat of water is 10 times greater than that of iron. You place a metal pot full of water on the stove to heat it up. You touch the metal handle of the pot when the water is still only lukewarm
Which of the following best describes what happens? A) You find that both the water and the handle are the same temperature. B) You determine that metal pots full of water produce acids and bases. C) You find that the handle is cooler than the water in the pot. D) You burn your finger and pull your hand away from the hot metal handle.
During the energy investment phase of glycolysis, glucose has a decrease in free energy.
Answer the following statement true (T) or false (F)