If there were no algae there would be no fish in the sea. Explain?
369572
In sea algae are the primary producers in the marine Food Chain.To start an ecosystem or biome primary producers are main requirement.So,you are right!
781893
These bacteria probably have the lux gene which codes for bioluminesence. A resonable mechanism that would cause this to arise is mutation. These lighted cells would probably have benefited some how from glowing in the dark. Some deep sea fishes have bacteria which code for this gene (Vibrio fischer) Which may have helped these fish find food in the dark waters. Thus those fishes without this gene would have died out because of natural selection. What you could do is put these fishes with the bacteria that glow in the dark in the same pool of dark water as the fishes without this gene. Then provide a limited food source so that not everyone could receive food and only the strongest would survive. If the fishes without this bacteria eventually died out but the others stayed alive, you have proven your hypothesis. If not, then failure willl be an obsticle to overcome.\n\nHope i was helpful
351457
Well hypothetically, if something were to happen...say aliens came down & sucked up the oceans... (LOL)\n\n1.)Weather...the weather is greatly affected by the oceans. Most of the moisture that precipatates as rain evaporated from the oceans. So you are looking at LITTLE to NO RAIN! That should tell you what would happen to life. We would be in major trouble! Also the ocean currents help control climates in places in the higher latitudes such as England & the rest of northern Europe. Warm water currents help make these latitudes warm enough to be habitable. No ocean means no current.\n\n2.) No more flounder, crabs, oysters, scallops, or any other yummy seafood! The only benefit I see from this is that jellyfish would become extinct. But since we would too I guess it wouldn't really matter anyways. LOL.
194216
Phosphate is an essential nutrient to plants, including algae. In bodies of freshwater it is often a limiting nutrient, meaning that the availability of phosphate is what controls the amount of plant life in the water. When this balance is upset by human input of phosphates either from fertilizer runoff, or once common phosphate based detergents (now outlawed in the US), there are algal blooms. These algal blooms soon die off and the resulting decomposition process will often consume all available oxygen in the water, killing fish and other aquatic life. This is known as eutrophication. Eutrophication also happens naturally over thousands of years and is part of the natural aging process of a lake.\n\nPhosphate moves in a cycle like many other nutrients. It comes from erosion of rocks and is picked up from solution by plants. From the plants it moves up through the food chain, or may return directly to soil or water through decay of the plant. It accumulates in sediments, which eventually become rock and the cycle is repeated.
287936
if gravity was absent, teh earth would have moved away from sun...it would be dark, the plants would not grow, we would die out of cold. we maynot even be able to stand in oneplace.....
58064
If you look at it from a aquarium, which is probably the simplist explanation.\n\nFish eat their food, whatever it may be, and produce waste. That waste decomposes into ammonia. Bacteria grow and consume the ammonia and produce Nitrites (NO2). This Nitrite is then consumed by a different bacteria which produces Nitrates (NO3). Nitrates are pretty much fertalizers for plants, and any plants you have in the aquarium will consume this for the purpose of photosynthesis. Then cycle then starts over with the fish or animals in the aquarium eating that. Other nutrients are involved of course, but that is the basis of the nitrogen cycle.
582819
a)\n\nIn many natural lakes, streams and wetlands the growth of plants and algae is largely determined by the amount of phosphorus available.  Phosphorus is the "growth limiting" nutrient.  As a result, any increase in phosphorus levels often leads directly to an increase in the growth of\nboth plants and algae.
97291
When you drink, the ice would be at the bottom of the glass. There would be no icebergs above water, no Antarctica. There would have been no ice age. No iceskating, no hockey, no icefishing (at least not naturally). Submarines would have to navigate more carefully because large chunks of icebergs would be under water. No polar bears, penguins, and any other animal that lives in the Arctic Circle or Antarctica. Those animals live on the ice and wouldn't be able to survive without it.
154530
What will happen is that the plant will die coz chlorophyll is a pigment in plants that enables the plant to produce it's own food for survival so without chlorophyll it won't be able to produce it's own food thus resulting to death of the plant.
1165111
I heard this one in Hawaii back in 1994 by a local fishing boat Captain.... it had something to do with fishing being able to smell bannana oil and staying away from the boat and that was supposed to be a natural signal to the fish they were too close to the beach.... basically ... you wouldn't catch any fish.  And the oil could stay on the boat for up to a week... that meant a week of no fish or money from them. He actually checked our coolers to make sure no one had banana's or coconuts.
674848
It could be that lol or it may be due to the bacteria that lives within the body of water, such as blue algae. :)
21824
If plants didn't have babies, there would be no new plants to replace the old ones when they died. Then, eventually, there would be no plants and you would not be able to ask that question. Instead you would ask why the plants didn't have babies. What was wrong with them?
564928
If I'm understanding correctly, landlocked means they are isolated from all other bodies of water, such as rivers, other lakes, etc. I'd say they have to spawn, because if they didn't, they would not reproduce and, therefore, there would be no more little fishies. Unless they could have come from another body of water, I say yes.\n\nNot sure about the fry, though.
823698
too many nitrates is not good, because then you get a ton of algae growth and the algae uses up all of the oxygen causing the other organisms to die\ndont know bout the other question
814698
I suppose if you took a fresh water fish and put him in the ocean, he wouldn't be able to deal with the salinity and would dehydrate - essentially die of thirst!!
449284
I think that if carbon was not available when life was being formed, then life would be dependent on something else.  \n\nIf you notice, everything that is essential for our survival, is stuff that was plentiful when life was first forming.  If oxygen wasn't there, then we would not be dependent on it today.  Same with sunlight and water.
664708
For starters there would be no tides. Moon is responsible of tides, since its magnetic field affects the sea level. Also, visibility at night would be significally reduced.