yes. yes I do wonder that.
earth the wonder world of many of other planets
Isaac Newton was the first to propose that there is a universal gravitational force which affects all objects in the universe.
For endothermic creatures, heat is an extra product of natural metabolism. On the flipside, exothermic creatures actually depend on heat from other sources (usually the sun) to do any of those metabolic processes.
Objects that move around other objects in the universe are said to be orbiting it, or in orbit.
attract each other
Well assuming there are other intelligent living creatures in the universe, they would refer to other intelligent living creatures in the universe (which can be us) as a word in their language that has the same meaning as aliens. So, yes, for other intelligent living creatures in the universe. But that doesn't mean if we didn't live on a planet we wouldn't be aliens. Because we would still be other intelligent living creatures in the universe for other intelligent living creatures in the universe. And yes, I used copy/paste for other intelligent living creatures in the universe. :) By the way, you refer to humans as "them". Doesn't that make you and alien for us? :P
both
to see if there is other living creatures live in the arctic.
Living creatures need affection.
Scientist, botanist, zoologist.
You are living on it and it is called Earth which is a spherical shape
i believe we all have a spirit
Kelp and other producers need it to grow.
earth has living creatures on it......obviously
The universe is huge and constantly expanding, and so, many things are happening all at once, so maybe a species just went extinct somewhere, a star exploded, or something else. It is hard to say if there are aliens or we are truly alone. There are many theories, and researches going on about this so if you'd like you can go read a few and get more thoughts on this topic, because until there is a definite answer all we have are theories, unfortunately.
people and animals inhales oxygen because it is important to them,and it is the only air for them to survive.
Yes. I have a marine aquarium and all of the living and even non living organisms interact. Some fish and creatures are territorial and will attack other creatures that come to close, and sometimes all the fish fight. But they also swim together and interact a lot. Different plants such as coral and anemone are important to the creatures as they are used as homes. Even if you don't have a marine aquarium, all living creatures interact somehow. Hope I helped :-)