subject
Biology, 21.01.2020 06:31 livmoney8905

3. which discovery supports the hypothesis that evolution of the lactase persistence trait was driven by the use of milk in
pastoralist cultures?
a. the lactase gene is present both in humans and in domesticated animals.
b. ancient pots used to hold milk are about the same age as the lactase persistence mutations
c. most human cultures today drink milk and most people worldwide are lactase persistent.
d. scientists have identified different mutations that cause lactase persistence.

ansver
Answers: 1

Another question on Biology

question
Biology, 22.06.2019 03:00
Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 2
question
Biology, 22.06.2019 06:50
The kidney filters potentially toxic substances in the blood, and thus “clears” the blood of those substances. this clearance function is dependent upon and proportional to the diffusion gradient of the substance across filtering capillaries, i.e. if the concentration of the substance is doubled, twice as much will be cleared from each ml of blood that is filtered. suppose that the body produces a constant amount of a substance x per unit of time. the kidneys eliminate substance x at a rate directly proportional to the concentration of the substance and the volume of blood cleared each minute (c): elimination = c × [x], where [x] is the steady-state concentration of substance x. imagine an individual with an initial concentration of x equal to [x]0 who develops kidney disease. her baseline clearance c0 drops to one half of the original (½c0). what is the new steady state concentration of x? (for simplicity, assume that substance x is 100% filtered by the kidney).
Answers: 1
question
Biology, 22.06.2019 11:00
Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations
Answers: 2
question
Biology, 22.06.2019 13:00
Plz ! what does it mean for an allele to be dominant?
Answers: 1
You know the right answer?
3. which discovery supports the hypothesis that evolution of the lactase persistence trait was drive...
Questions
question
Mathematics, 29.08.2020 01:01
question
Chemistry, 29.08.2020 01:01
Questions on the website: 13722362