Explanation:
Survival of the fittest is a phrase that originated from Darwinian evolutionary theory as a way of describing the mechanism of natural selection.In On the Origin of Species, he introduced the phrase in the fifth edition published in 1869, intending it to mean "better designed for an immediate, local environment".
D. Carbon moved in a cyclic fashion through the atmosphere and living organisms
Answer: I bleive that it is D Hope it helps
It is important to note that such animals living in desert conditions do not waste water by sweating to control body temperature. They mostly try burrowing during the day time to avoid getting dehydrated. Their urine is highly concentrated and it is mostly in the form of uric acid. These means help the desert animals to survive in such harsh conditions.
Answer:
A secret. When you have a secret, you want to tell other people, but when you do, it's no longer a secret.
