Questions tagged [life]

A process defining organisms that grow and adapt to stimuli while maintaining a state of organization and energy production and being capable of reproduction.

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Light/Heavy Isotopes in Living Organisms

I was wondering, why are lighter isotopes (e.g. carbon-12 as opposed to carbon-13) preferentially used by life on Earth? Is their increased stability the only factor? Thanks in advance!
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What is the name of this sea creature?

I found this creature on the beach in San Diego. It is 8cm long and the end to the right is the mouth. The underside is exactly the same as what is visible. What is the name of this species.
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Female mosquito fate in absence of food

What happens to female mosquitoes which want to lay egg but couldn't find mammal host for blood, will that mosquito simply die, if no mammals in area would mosquitoes will be absent too?
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Is this trial that reversed aging in humans worth taking seriously?

In September 2019 Fahy et al. published results from the TRIIM (Thymus Regeneration, Immunorestoration, and Insulin Mitigation) trial. Their stated goals were to investigate whether they could restore ...
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What are the tests performed by NASA's Mars rovers to establish that life could survive on the planet?

I am particularly interested in the Mars Rovers, which are out there trying to find life. Do they believe that the tests they perform are sufficient to verify the existence of life (Also please ...
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Has anyone 'broken' an organism and then restored it to life?

Has anyone 'broken' an organism, rendering it unable to reproduce, then repaired it and observed it returned to being able to reproduce? An example would be to restore the reproductive capacity to a ...
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Can creatures that can see color in completely different visible spectrum exists?

From wikipedia - "The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye." So humans can see the light from 400-700 nm and this is because our eyes can ...
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Could something akin to Cyanobacteria evolve on earth today or are all available niches taken for different kind of life to come to be?

The most basic form of my question would have to be: could new life form from molecules as happened with the first life on earth, here on earth? If not why not?
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Do other forms of life perceive sensations logarithmically?

It is generally claimed that humans perceive sensorial stimuli according to a power law (also phrased as sensations being measured on a logarithmic scale). How commonly does this occur in living ...
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Why is movement of water through cell walls considered the apoplast and symplast pathway?

Why would the movement of water through cell walls be considered the apoplast and symplast pathway? I understand why it's considered the apoplast pathway (as the water is moving through a non-living ...