<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.
Answer:
X. Mechanisms and habits that include limit water loss.
Explanation:
Many mammals that live in dry ecosystems tend to have above adaptations because there is a shortage of water in these areas. And of course water is the most essential thing for survival.
<span>Axial Skeleton; the axial skeleton includes the skull and sine while the appendicular skeleton includes the limbs and the bones with which they attach to the axial skeleton.</span>
One organic waste that is not found in urine is called Bicarbonate Ions