The answer to your question is,
Catalysts
-Mabel <3
They only allow certain substances to go through.
Answer:
Empirical evidence of his ideas
Explanation:
The scientific process involves the formulation of hypotheses that enable to answer questions about the real world, and then to carry out experiments or observations that are used to confirm (or reject) such predictions. In the last 160 years, Darwin's ideas on 'descent with modification' have constantly been subjected to experimental assessment, and obtained data confirmed his observations. For example, molecular evidence based on the DNA and RNA -which constitute the genetic material of all living organisms- has shown the conservation of this process. In consequence, molecular evidence has been used to construct 'evolutionary' phylogenetic trees from DNA/RNA sequences. Moreover, evidence in genetics has shown the critical role played by mutations in the mechanism of natural selection proposed by Darwin, thus also confirming his theories. These are only some examples, and supporting evidence confirming Darwin's ideas has been collected from different research fields ranging from ecology to molecular biology.
Answer:
the process that would make them go as dark or light would be because they and blend in better to no the eaten it is called "latrell Selection" so in the Beach mice would stay light because they look like sand but if they were dark they would be easy to see that is why they are not there same thing for the forest but the other way around
if the forest changed to more sandy it would let lighter mice live there to but the dark mice would still live because it is not all sand i like it would be equal amount of dark and light mice because they would both have there spot to hide and just as vulnerable if the switched spots
Hope This Helped
Answer:
Many ranchers strongly opposed the reintroduction for wolves because if wolves left the park and killed their live stock they would lose money. However, they are important to maintain a balance in the ecosystem.
If you are interested in learning more, I would suggest reading Wolf Stalker (National Parks Mysteries)
Happy learning!
--Applepi101