Traditional forms shows the evolutionary steps between species
Any of the pairs of the hydrogen-bonded purine and pyrimidine bases that form the links between the sugar-phosphate backbones of nucleic acid molecules: the pairs are adenine and thymine in DNA, adenine and uracil in RNA, and guanine and cytosine in both DNA and RNA.
Explanation:
because it help in sustaining the structural integrity of cellular membrane
Answer:
In a darker background, natural selection favors the darker birds.
Same goes for a ligter background
Explanation:
There is pressure in a population to look the same, because if you are white in a flock of regular pigeons, you will be targeted by predators, mainly Peregrine Falcons. However, in a city environment, it my benefit you (the pigeon) to be a different color, as more people will feed you. However, due to the release/escape of domestic pigeons, new colors that would not have appeared in the wild population are there.
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3.The air popper can pop 5.6 cups of popcorn in one minute, while the oil popper can only do 4.6 cups of popcorn
4.Answer: There are more molecules in a gram of water.
Explanation: Specific heat is the heat required by 1 gram of a substance to raise its temperature by .
As the specific heat of water (4.186 J/g°C) is more than that of ethanol (2.450 J/g°C) it means more energy is required to raise the temperature of a gram of water by 1°C. Which means the molecules are tightly bound and thus more molecules are contained in a gram of water.
Q= heat gained
m= mass of the substance
c = heat capacity
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