Us Humans need our arms to pick up, drop, and grab items. Without arms in this environment we wouldn't be able to to many things. We have a mouth to speak, breath, and eat. Without a mouth we could not live because we would not be able to eat. We have a nose to breath, and smell. Without a nose it would be very hard to live because we wouldn't be able to smell. We have feet so we can walk, and run. If we didn't have feet we wouldn't be able to walk or run and life would be very difficult. If we didn't have any of these parts we would never be able to survive.
This Alien will survive. It will survive because the planet is a rocky planet and the claws on the arms/feet will be able to walk on the rocky grounds. It will also survive because the only food sources are berries and seeds and the beak can easily pluck them of the bushes. One other part that helps it survive is it's one eye it only has one eye so it can see the bushes for food.
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1.We do not have cells similar to the aliens because the cells they have are harder cells then what we have. The cells are harder because they have to create scales.
2. Some of these cells could be cells that help with the brain or the heart. The cells could help with any because until the cell is put with one it could choose another cell.