Majority of animals on earth are classified as invertebrates. They are the cold-blooded animal that do not have a backbone. They can be found on land or water. 98% are invertebrates while 2% are vertebrates.
Mammals are vertebrates and humans are the most common mammals on Earth. Radial symmetric does not possess left and right sides. An example is a jellyfish.
Answer - Option 4 - Invertebrate
It's related because part of the survival of the fittest include the organism(s) to be able to survive in the environment they are in.
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Answer:
If this is wrong im very sry, but i belive the answer is white blood cells
Explanation:
These are the cells that fight off infections and bactieria that is not sopposed to be in the human body, or any other living creature.