An ecological footprint refers to the damage you did to your environment and what you'll leave behind.
So normally, a regular footprint should refer to just what you did and didn't do to this world, and an ecological is strictly refering to the environment.
Hope it helped,
BioTeacher101
Muscles are in pairs called "antagonistic muscles." Let's take the human elbow joint as an example from the diagram. The elbow joint has 2 muscles; triceps and biceps. These 2 muscles help raise your forearm up or down. In the diagram, it shows an arrow going up which represents that your forearm is being raised. To raise, your biceps contract and your triceps relax. Its the opposite when you lower yopur forearm. To lower, your biceps relax and your triceps contract.
Best of Luck!
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not sure how to answer number 5
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8. The stomata formed by a plant's guard cells are important because they allow the plant to.
