Which best describe the structure of dna?
a.) purine backbones with pyrimidines on the inside...
Biology, 13.12.2019 00:31 smelcher3900
Which best describe the structure of dna?
a.) purine backbones with pyrimidines on the inside.
b.) base backbones with sugar on the inside.
c.) sugar-phosphate backbones with bases on the inside.
d.) a backbone of bases with phosphate groups on the outside.
Answers: 3
Biology, 21.06.2019 18:30
Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.
Answers: 3
Biology, 21.06.2019 21:00
Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.
Answers: 1
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Biology, 22.06.2019 10:50
The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million
Answers: 2
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