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.
It must be able to replicate it's DNA
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Some proteins lowers the activation energy of a reaction, making it more likely to proceed. The reaction will occur thousands or millions of times faster. The name of this special type of protein is enzyme.
It is a geode that is lined with minerals