Please finish the sentence.
Answer:
Energy can be changed from one form to another
Explanation:
Energy can't be destroyed or created
Answer:
an enzyme is a protein which is used to break down food
Explanation:
Extinction is a natural process that may be caused by natural selection, shortage of food or natural calamities. Hunting, deforestation, pollution, the conversion of uncultivated areas into pastures, the illicit trade of wild animals as well as climatic changes have made life more difficult for many animals.