Many living things are in one big group.
This group has plants and tiny life. Some are very small. Some are big trees.
They help our world grow. They are everywhere! Can you find a green plant?
Many living things belong to one big group.
This group is very diverse. It has many different kinds of life.
Some members are tiny. They are too small to see. Other members are huge. They are big land plants.
Many of these living things use sunlight. They use the sun to make food. This helps them grow.
Some have tiny hairs. These hairs help them move. Others have small sacs under their skin. These help them stay healthy.
This big group is found all over Earth. It is a very important part of our world.
Many living things belong to a huge group called Diaphoretickes.
This group is very diverse. It has over 600,000 different species. Some are tiny single cells. Others are big land plants.
Land plants alone make up 81% of all life on Earth.
Most members can use sunlight to make food. We call this photosynthesis. They use special parts called chloroplasts to do this.
Some groups got these parts in a direct way. Other groups got them by taking in other cells. This is called endosymbiosis.
Members of this group share some old traits. Many have two whip-like tails called flagella. They also have tiny hairs on these tails. Some have small sacs under their cell surface. These are called cortical alveoli.
There are several main parts to this group. Archaeplastida includes plants and red algae. The SAR group has many types of life. This includes kelp and tiny moving cells. Haptista and Cryptista are also important parts of this big family.
Diaphoretickes is a massive group of living things. This group is very diverse and includes over 600,000 different species. You can find everything from tiny single cells to huge land plants.
In fact, land plants alone make up more than 81% of all life on Earth. This group is important because it contains almost all life that uses sunlight for food.
This process is called photosynthesis. Because they are so varied, scientists use the name Diaphoretickes to mean "diverse" or "dissimilar."
Many members of this group share special traits from their ancestors. Most have two whip-like tails called flagella. Some also have tiny hairs on these tails.
Many members also have cortical alveoli. These are small sacs located just under the cell surface.
Some cells also have axopodia. These are stiff, branching filaments used for feeding.
These features help scientists understand how these different life forms are related.
How these organisms get their food is a fascinating story. Many use chloroplasts to perform photosynthesis.
Some groups got these parts through a direct way called primary endosymbiosis. This happened when they took in a cyanobacterium. Other groups used a different way called secondary endosymbiosis. They did this by taking in other cells, like red or green algae.
This helped different groups gain the ability to use sunlight at different times.
Scientists have worked hard to map this family tree. In the late 20th century, researchers used molecular studies to group life.
Before this, biologist Thomas Cavalier-Smith suggested these groups were close. He called them photokaryotes because they use light. He also used the name corticates to describe their cell structures. In 2012, the International Society of Protistologists gave them the official name Diaphoretickes.
This name is now widely accepted by the scientific community.
There are several main branches within this huge group. Archaeplastida includes plants, red algae, and green algae.
The SAR group is a large branch with three parts: stramenopiles, alveolates, and rhizarians.
Stramenopiles include things like kelp and diatoms. Alveolates include ciliates and dinoflagellates.
Finally, there are the Haptista and Cryptista groups. These branches show just how much life can change and grow.
Diaphoretickes is a massive evolutionary lineage of eukaryotic organisms. This group includes over 600,000 different species. It contains an incredible range of life forms. These range from single-celled protozoa to complex multicellular plants.
Because of this variety, Diaphoretickes members look very different from one another. The name itself comes from words meaning "diverse" or "dissimilar." This group is vital to our planet. It contains almost all eukaryotes that can perform photosynthesis.
In fact, land plants alone make up over 81% of the total biomass on Earth.
Despite their physical differences, these organisms share several ancestral traits. Many members are biflagellates, meaning they possess two flagella. These are whip-like structures used for movement. Many also possess a ventral feeding groove. This is a specialized area on the cell for consuming food.
Another shared feature is the presence of cortical alveoli. These are small, flattened vesicles located just beneath the cell membrane.
Some members also have flagellar hairs. These are tiny, straw-like structures called mastigonemes. These specific traits help scientists trace the group back to its common ancestors.
One of the most important processes in this group is how they acquire chloroplasts. Chloroplasts are the parts of a cell that allow for photosynthesis. Some groups, like Archaeplastida, used primary endosymbiosis. This happened when a cell took in a cyanobacterium directly.
Other groups used secondary endosymbiosis. In this process, a cell swallows another organism, such as a red or green alga.
This allows the host cell to gain photosynthetic abilities. Scientists have different theories about the exact order of these events. Some believe cryptophytes were the first to acquire these red algal-derived plastids.
Diaphoretickes is divided into several major branches or supergroups. The first is Archaeplastida. This group contains about 450,000 to 500,000 species. It includes red algae, green algae, and land plants.
The second major branch is the SAR supergroup. SAR stands for three distinct groups: stramenopiles, alveolates, and rhizarians. Stramenopiles include kelp and diatoms.
Alveolates include single-celled organisms like ciliates and dinoflagellates.
Rhizarians are mostly amoeboid organisms, such as radiolarians and forams.
Other important branches include Haptista and Cryptista. Haptista consists of single-celled organisms with mineralized scales. This includes photosynthetic haptophytes and heterotrophic centrohelid amoebae.
Cryptista is made of fully single-celled flagellated organisms. This includes photosynthetic cryptomonads and related species.
There are also very small groups like Telonemia. This group contains only seven species of flagellates. These various branches show how one lineage can evolve into many different forms.
The history of naming this group has been quite complex. In the late 20th century, scientists used molecular studies to study evolution. This revealed that "protists" were not one single group. Instead, they were many different lineages. Biologist Thomas Cavalier-Smith studied these relationships early on. He proposed the names "photokaryotes" and "corticates" for these organisms. He noticed their shared ability to use light and their cortical alveoli.
However, these names were later replaced as science improved.
In 2012, the International Society of Protistologists established the name Diaphoretickes. This provided a formal taxonomic name for the clade. Some scientists, including Cavalier-Smith, disagreed with this name in 2015. They argued that the name lacked intuitive meaning. They suggested using the name "Corticata" instead. Despite this debate, Diaphoretickes remains the widely accepted name. It helps scientists organize the vast diversity of eukaryotic life. This classification allows us to understand how life on Earth is connected through deep time.
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