The gravity from the moon and some from the sun brings the tides up, because the moon's gravitational force is strong enough to pull some water up.
Grasses, shrubs, cacti, and gourd plants.
It means that only those who are able to adapt with all conditions they are placed in will be able to live.
Answer: <u>Guanine
</u>
According to Chargaff's rule, the base pairing in the DNA and RNA is fixed. Adenine always pairs with Thymine in DNA and Uracil in RNA. Guanine pairs up with cytosine. This complementary base pairing is universal and constant. That's why amounts are also equal. It means if cytosine is 20% in any DNA sample, then amount of guanine would be 20% as well.