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Archea are single celled organisms that have no nutrcleus.
They live in extreme environments where no other organism
could survive. They were the first life on earth.
The three domains represent the largest differences among
organisms. Each kigdom belongs in one of the three domains.
The domains are Archea, Bacteria, and Eukarya.
archea
bacteria
animalia
fungi
protista
plants
All bacteria belong to the domain bacteria. Bacteria can be found
in the soil, water, air and even in the bodies of other organisms.
Some help and some cause disease.
All organisms whose cells have a nucleus and membrane
bound organelles are called eukaryotes. Eukaryotes belong to
the kingdom Eukarya.
The first bacteria on Earth. They can live in extreme
environments.
A kingdom of organisms that have no nucleus, but they do have a
cell wall. Their DNA is located in their cytoplasm.
The kingdom protista contains many types of organisms that
evolved from bacteria. Many are single celled and aome are
simple multicellular. Plantlike protists are called algae.
Protista evolved into plants animals and fungi.
Molds and mushrooms are examples of this complex
multicellular organism. Fungi do’t eat food. Instead, they absorb
nutrients from their surroundings. Many are poisonous.
This kingdom consists of organisms that are eukaryotes, have a
cell wall, and go through phoyosynthesis. They can live wherever
sunlight penetrates. Also, they provide a habitat for other
organisms.
The kingdom animalia contains complex multicellular
organisms that lack cell walls. They are usually able to move
around and have specialized sense organs.
1. Most biologists recognize three domains: Archaea, Bacteria,
and Eukarya.
2. As scientists discover new organisms, classification systems
are changed to include the characteristics of those new
organism.
3. Archaea can live in extreme environments. Bacteria live
almost everywhere else. All prokaryotes are members of the
domain Archea or the domain Bacteria.
4. Domai Eukarya is made up of four kingdoms: Protista, Fungi,
Plantae, and annimalia. All members Eukarya are
eukaryotes.