Which of the following are alveolates?

Which of the following are alveolates?

Introduction to the Alveolates

• Alveoplates include some of the most familiar and numerous protist groups, including the Ciliata, or ciliates, such as Paramecium and Stentor.
• Also very diverse, though not as familiar, are the Foraminifera.
• A third group is the dinoflagellates.

Are jellyfish alveolates?

The genus Symbiodinium occurs as an intracellular symbiont of cnidarians, corals, jellyfish and sea anemones, as well as molluscs, flatworms and sponges.

Where are alveolates found?

The most notable shared characteristic is the presence of cortical (outer-region) alveoli (sacs). These are flattened vesicles (sacs) packed into a continuous layer just under the membrane and supporting it, typically forming a flexible pellicle (thin skin). In dinoflagellates they often form armor plates.

Are Alveolates multicellular?

Animals, plants, and other multicellular organisms are a drop in the ocean of eukaryotic diversity. The alveolates are an ancient group of eukaryotes that occupy a diverse array of ecological niches, both free-living and parasitic.

How do Alveolates reproduce?

Figure 23.3B. 1: Paramecium: sexual reproduction: The complex process of sexual reproduction in Parameciumcreates eight daughter cells from two original cells. Each cell has a macronucleus and a micronucleus. During sexual reproduction, the macronucleus dissolves and is replaced by a micronucleus.

Are dinoflagellates harmful to humans?

Dinoflagellates can be harmful to humans. Their toxins attack the neurological system, causing illnesses such as Amnesic Shellfish Poisoning, Ciguatera Fish Poisoning, and Possible Estuarine Associated Syndrome. Two of the most infamous genera are Alexandrium and Pfiesteria.

What is an interesting fact about protists?

Interesting Facts about Protists Many protists act as pathogens to humans. This means they cause diseases. The disease malaria is caused by the protist Plasmodium falciparum. If an amoeba is cut in half, the half with the nucleus will survive, while the other half will die.

How do dinoflagellates eat?

Many dinoflagellates are photosynthetic, manufacturing their own food using the energy from sunlight, and providing a food source for other organisms. Some species are parasites on algae, zooplankton, fish or other organisms.