Answer:
Recently work in evolution theory has proposed that by relaxing selection pressure, which typically acts to streamline genomes, the complexity of an organism increases by a process called constructive neutral evolution.
Explanation:
It changes the genetic sequence I’m pretty sure
Animals move from place to place because -
1)in search of food and shelter.
2)to <span>protect themselves against adverse climatic conditions.
3)to protect themselves </span><span>from enemies and their predators
</span>4)to find suitable partners for <span>reproduction.
Animals migrate to reproduce, eat, or seek warmer climates.</span>
Answer:
Many fossils are found only during certain periods in the geologic record. Scientists use these fossils to determine the relative ages of rock layers. The diagram shows relative ages of four fossils.
Hope that helps :)
Answer:
A food chain is B= all the feeding relationships in the ecosystem.
Explanation:
Two examples of abiotic factors needed in an ecosystem are A= air and water
