Answer:
A food web consists of many food chains. A food chain only follows just one path as animals find food. eg: A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. A food web shows the many different paths plants and animals are connected.
Enzymes have optimal pH levels and optimal temperatures. Anything outside of their specific ranges can affect functionality
A single celled organism without distinct nuclei or organized
cell structure is called as a prokaryote.
Answer: It is supported by hypotheses, repeated tests and law from one or more fields of science.
Explanation:
In the context of science, a theory is a well-established explanation for scientific data. Theories typically cannot be proven, but they can become established if they are tested by several different scientific investigators.
Answer:
C.
Explanation:
Fish living in open oceans are not extremophiles.