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What else can I help you with?
How do you differentiate autotrophs from heterotrophs?
Heterotrophs came first because they could live off the minerals in the oceans (Heterotrophs are just organisms that take their source of energy from somewhere else - minerals do count). Autotrophs, however, could not have lived first because the ozone layer was not formed, and taking in the sunlight would have been the same as taking in harmful UV radiation that would have killed the autotrophs. The cyanobacteria (which are heterotrophs) were the ones that first helped create the ozone layer.Actually, Cyanobacteria aren't heterotrophic. This WRONG answer led me cramming for our debate about Autotrophs vs. Heterotrophs. If you want to know about which came first, either search about primordial theory by A.I Oparin or go to http://leiwenwu.tripod.com/(:my yahoomail: lord_reverie@yahoo.com.ph
What modern organisms are thought to be most like the first life-forms on Earth?
Microorganisms such as bacteria and archaea are thought to be the most similar to the first life-forms on Earth. They are simple, single-celled organisms that can thrive in extreme environments, similar to conditions on early Earth. Their genetic makeup and metabolic processes provide insight into early life forms.
The first organisms on earth were most likely todays?
The first organisms on life were supposedly (scientifically) single cell organisms. We have a couple hundred billion lying around modern day.Some of Earth's first organisms were similar to today's bacteria.
Why do scientists classify organisms?
first they observed each organism carefully. then they compared and contrasted their observations with known plants and animals. they tried to place similar organisms in one group. a plant or animal that was very different from others would be put in a new group
How are simple and complex organisms alike?
That depends on which organism. Generally, an organism is more complicated than an organ, but if the organism is unicellular (has one cell) then it could be more simple. Since one celled organisms don't have individual organs, then the anwer is that organisms are more complicated than organs.
What are organisms in an ecosystem that first capture energy?
Autotrophs or producers
What present-day organism may be similar to the first autotrophs?
Pretty much any type of plant except for the fly trap and other things similar to that because autotrophs are organisms that make their own food. I hope i helped because it didn't really seem that right to me.
What kind of organisms was the first life on earth How did the obtain energy?
There are several theories on how the first organisms on Earth obtained energy. The generally accepted theory is that these organisms harvested organic substances from the primordial soup of energy-rich molecules.
What are organisms that make up first level of a food chain and produce their own food called?
autotrophs
What are organisms in an ecosystem that first capture energy called?
Organisms in an ecosystem that first capture energy are called producers. They are typically plants or algae that use sunlight to convert it into chemical energy through photosynthesis. This energy is then passed on to other organisms in the food chain.
Which organisms reduced the amount of carbon dioxide and increase the amount of oxygen in the air?
Plants, which are on the first trophic level, can also be referred to as producers or autotrophs.
What type of organisms first appeared on earth?
The first type of organisms to appear on Earth were single-celled prokaryotic organisms, such as bacteria and archaea. These organisms are among the most ancient forms of life and played a crucial role in shaping the planet's early environment.
When did autotrophs appear?
Autotrophs are believed to have appeared around 3.5 billion years ago during the Archean Eon. These primitive organisms were the first to harness energy from sunlight to produce organic compounds through photosynthesis.
What is organisms in an ecosystem that first capture energy?
Organisms in an ecosystem that first capture energy from the sun are called primary producers or autotrophs. These include plants, algae, and some bacteria that can perform photosynthesis to convert sunlight into chemical energy. This energy is then passed on to other organisms through the food chain.
What are the names of two types of autotrophs?
chemoautotrophs-those organisms that make their own food by chemical means, ie. without light. literally chemical-self-nutrition photoautotrophs-those organisms that use light to produce food to feed themselves, ie. photosynthetic organisms. literally light-self-nutrition
What names an organisms by a group of similar species first?
Binomial nomenclature.
What group of organisms alive today are most similar to the first cells on earth?
Archaea are considered to be the group of organisms most similar to the first cells on Earth. They are single-celled microorganisms that have simple cell structures and thrive in extreme environments, similar to the conditions present on early Earth.
