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If you mean do they come into existence and later cease to exist, the answer is; not on their own. In this sense they are like big rocks orbiting a star (sun), and as long as the sun is there they will be there. But, eventually the sun they orbit will explode and destroy them.
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Do other planets have nutrient cycles?
No
What is the purpose of other planets?
Because they are like other life planets they might be able to produce more life when Earth explodes.
Is there intelligent life on other planets?
So far, mankind has not discovered any life on other planets, let alone intelligent life. There's barely any intelligent life on this planet!!!
What molecule do scientists look for when they are investigating the possibility of life on other planets?
what molecule do scientists look for when they are investigsating the possibility of life on other planets
Was there ever life on any other planets?
No one actually found any human life on any other planets yet, but there is known to be some plant life out on mars.
Do other planets have nutrient cycles?
No
What are the differences between 3-stage life cycles and 4-stage life cycles?
4 life cycles has more transforming than 3 life cycles
Do cows have life cycles?
yes...everything has life cycles
What was the Mayan religion based on?
The cycles of seasons and the movements of planets
Does animal life cycles requires water and soil?
does an animal life cycles have water and soil
What are the chances there is NOT life on other planets?
Space astronauts went to the planets to be sure there is no life on planets
Plant life cycles differ from animal life cycles in that?
spore formation occurs in between meiosis and gamete formation.
Is their other planets that have life on them?
NO- People have found water on other planets but there is no life there.
Does a dolphin have 4 life cycles?
no
What book is available which deals with life on other planets?
There are several books that deal with life on other planets. Some titles include Is There Life on Other Planets by Gregory Vogt, and The Mystery of Life on Other Planets by Chris Oxlade.
Do the other planets in the solar system have day and night?
Yes. Since all planets in the solar system spin on an axis, every planet has cycles of day and night.
What life cycles are similar to the cockroach life cycle?
Chicken
