Answer:
1. Terrestrial ecosystem, 2. Aquatic ecosystem.
Explanation:
A terrestrial ecosystem is an ecosystem that exists on land. An aquatic ecosystem id an ecosystem that exists within a niche.
Answer:
hmm.......................
E Bipedalism is least important because two feet. The others are
important to have a brain, reproduction, vision, and motion movment.
Remote sensors is the answer. Is it multiple-choice, though?