Most planets would be too challenging for life at all. So far, just Earth seems to have the necessary ingredients to spawn life. We keep hoping for signs on Mars, but to date, no joy.
Why might several different biologists be interested in the same organisms
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depending on the environment organisms must adapt in certain ways so they can survive
Planets form, and they undergo changes as they age. This process of change might be termed 'geological evolution', but this should not be confused with biological evolution, which is an entirely different kind of process.
Although organisms with the same physical characteristics have the same PHENOTYPE, they might have different GENOTYPE, or genetic makeup.
Earth has an ozone layer in atmosphere. It is present in the stratospheric region. Other planets which have oxygen in their environment might have ozone.Some planets like earth do. Others might have.
The paramecium might have a contractile vacuole, whereas cells like animal and plants just have a normal one.
Our solar system might have been totally different to the the one we have. The sun has gravitational forces that pull the planets while they revolve around it. If the sun was smaller, then the planets would have much smaller too. The temperatures generated by the sun on the planets might not have been sufficient to sustain life either.
Some universal challenges for all organisms include finding food, avoiding predators, competition for resources, and reproducing to ensure survival of the species. Adaptation to changing environments, managing energy efficiently, and avoiding disease are also key challenges faced by all organisms in their quest for survival.
We dont know but I think there is because they might be humans in different forms and shape living in another galaxy, they might some soul doing the exat same thing they are doing or they might be that the top of the food chain will be tigers, not humans and tigers go to work, school etc and humans be in cages also they might look so different andthey might think we are so ugly, dangerous and we might think there ugly. They might think humans arE aleins and they might have 6 eyes that are shaped like a cube, we think thats stupid and they think that " This gus go 2 eyes shaped like a oval thats nasty" right sp we never know never.
Different classes of organisms are grouped into the next larger category called "phylum" in taxonomy. This grouping is based on similarities in body plan and development.
It's called Tiny Planets, and they now have a website!