Which statement about the structure of DNA is NOT true? O Long strands of DNA are twisted in the form of a double helix.
O DNA consists of two strands joined together by complimentary base pairing.
DNA contains four different nitrogen bases in including adenine, guanine, cytosine and uracil.
DNA is made of linked nucleotides which are each made of a sugar, a phosphate and a nitrogen base.

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.

All vaccination should(n’t) be mandatory! 1.at least 5 sentences explaining 2.why? 3.in the end summarize the sentence

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.