<span>There are many indicators for predator presence. Some of them are:
Being able to spot predator marks like scratches or fur.
Being able to feel predator movements.
</span><span>Echo-location </span>For example, moths respond to the echo-location calls from their bat predators; moths drop to the ground once they hear the sound pulse from the bat.
Is there a list to pick from
The purine base adenine
The pentose sugar ribose
<span>
Three phosphates </span>
The control is the group of no fertilizers.
A control in an experiment is usually the group without the variable to be tested. In this case, the farmer wanted to test the effects of fertilizers, therofre the group without it is the control group.
Answer:
A
Explanation:
Enzymes are substances that have important jobs in your body, For example they help speed up the reaction of when your eating, those enzymes help break up the food and make the process faster.
