What can survive without Sunlight?

Question

I'm in Biology class right now and I need to know this question.

Answer 1

Simple answer...
Chemosynthetic organisms and those animals that prey upon them within that ecological niche.

The predators of chemosynthetic organisms are not necessarily chemosynthetic themselves. Hence, you can have an undersea volcanic vent that spews chemicals which are fed upon by bacteria way deep down there, where there is no sunlight. Other animals eat those bacteria that are chemosynthetic (IOW, they produce energy by processing certain chemicals, instead of sunlight), and other animals eat them.

Those non-chemosynthetic creatures are no different from sun-dependent ecologies. On land, plants are photosynthetic. Deer eat the plants for their energy, and cougars eat the deer. Deer and cougars are not photosynthetic.

Did I explain this right? The worms, mollusks, and crustaceans around the deep sea vents are not chemosynthetic, nor photosynthetic, and get no sunlight down there either, but they are still able to gather all that they need due to the bacteria that feed off of the chemicals that spew out of the vents.

To simply say that chemosynthetic organisms can survive without sunlight isn't totally correct, because those other creatures can survive without it too, and they are not chemosynthetic. The correct answer is both.

I don't know if fungi require sunlight or not, but they, like us humans, may require sunlight for things other than producing food. We humans, for example, manufacture vitamin D by absorbing sunlight, and without sunlight, we would either need supplements of vitamin D or we would suffer serious health problems. So, even though we are not photosynthetic, we still need sunlight. Same thing with other animals on land and the depths where sunlight can reach. If fungi and mushrooms don't need the sun for anything, then they could only be chemosynthetic organisms, so my answer would still be correct.

However, the issue can become cloudy. There are some cave animals that never leave the darkness, but are dependent on animals that do for their food. Cave cockroaches, for example, will never be struck by sunlight, but they feed on bat guano and dead bats that fall to the cave floor. The bats, in turn, feed on insects that feed on plants that produce energy from the sun. The roaches are not chemosynthetic, and none of the creatures in their food chain/ecology are chemosynthetic, but they do not need the sun to survive, or do they? Actually they do, because without the sun, there would be no plants to feed the insects, which feed the bats, which feed the roaches.

How's that?

El Chistoso

Answer 2

There are many bacteria whose sole purpose is to convert atmospheric sulphur to oxygen - which, coincidentally, is how Earth came to have an oxygen-rich atmosphere several billion years ago. Some of these bacteria survive to this day.

Also, there are organisms that were found only a few years back in newly-explored sections of the ocean. They rely (as with the bacteria) on sulphur that comes out of deep-sea vents. Animals that have been found on these vents range from bacteria to crabs.

So, organisms that need only sulphur to survive need no sunlight.

Answer 3

Indirectly, everything. Even fish at the bottom of the ocean, where there is no sunlight, require food that has, as its source, food which gets its energy from sunlight.
The only thing which comes to mind is sulphur bacteria, which get their energy from volcanic fissures at the bottom of the ocean, there could be a food chain based around that.

Answer 4

Almost nothing can survive without light. Almost everything needs it. Plants need it for photosynthesis and animals need it for different purposes as well. Only certain organisms which are adapted to lets say a cave setting or are at the very bottom of the ocean don't.

Answer 5

particularly some the solutions right here look answering no remember if or no longer we can stay to tell the story without the sunlight. of path it is impossible. however the question asked grew to become into wheter we can stay to tell the story without "sunlight". the respond is the two specific and no. sunlight facilitates our physique to technique or maybe produce some supplementations (diet D working example). sunlight (or the inability of) additionally impacts us psychologically. So, in nature, over long sessions of time, we - as a species - could adapt into something else as shall we no longer stay to tell the story over generations in our cutting-edge variety. we'd the two lose our eyesight or our eyes could grow to be great comfortable -- like owls eyes. we'd additionally could adapt to ingesting diverse meals thats richer in supplementations our physique could usually lose right this moment. yet for prolonged sessions interior of our existence, specific, we can stay without sunlight. it could be confusing to stay the entire existence without it, whether it quite is achieveable with the suitable weight loss plan and exersize levels to counteract the inability of supplementations. specific varieties of tanning beds or sunlight-lamps might help this. human beings at NASA have been questioning approximately this subject because it quite is something which would be confronted while Astronauts would be predicted to circulate on long voyages. human beings have lived on the worldwide area Station and the Russian area Station MIR for as long as a 12 months without sunlight. i myself artwork in Alaska above "the Arctic Circle". this might nicely be an area on the appropriate of the Earth that doesn't recieve sunlight for months in the time of the wintry climate time. yet for an the two long term, we've sunlight hours 24 hours an afternoon. It get's depressing after an prolonged time without sunlight. yet we live without it up there, as have the Eskimos for thousands of years.

Answer 6

Mushrooms

Answer 7

the chemotrophs sitting in deep hydrothermla vents..they use the sulfur coming out of the vents to produce enery rather than sunlight. They include bacteria, tube worms, crabs

Answer 8

Mushrooms, deep sea fish.
But without sun light the earth would be frozen and nothing would live, no plants to make O2.

Answer 9

That scary fish on Finding Nemo.

Answer 10

My boyfriend told me Phil Stacey.