Protozoa

Volvox is autotrophic, as it can perform photosynthesis to produce its own food using sunlight, carbon dioxide, and water.

Chlamydomonas, a type of algae, can incorporate nitrogen into proteins, chlorophyll, and other essential molecules required for growth and metabolism. Nitrogen is an essential nutrient for the synthesis of these biological molecules in chlamydomonas.

Euglena is a genus of single-celled flagellate protists, known for their green or red eye-spot which helps them detect light. They are common in freshwater environments and exhibit both plant-like and animal-like characteristics, being able to photosynthesize like plants and also consume organic matter like animals.

Euglena is a single-celled organism that performs both photosynthesis and respiration. During respiration, Euglena takes in oxygen and releases carbon dioxide, producing energy in the form of ATP. The process of respiration in Euglena occurs in the mitochondria, where glucose is broken down to release energy for the organism's metabolic activities.

Plasmodium vivax is a species of parasite that causes malaria in humans. It belongs to the kingdom Protista, which includes single-celled organisms that do not fit into the other traditional kingdoms of plants, animals, or fungi.

A unicellular paramecium gets rid of its excess water through a contractile vacuole, which pumps out the excess water to maintain proper cell volume. This process requires energy because the cell needs to actively transport the water out against its concentration gradient.

Amoebas are single-celled organisms that use pseudopods for movement and feeding. They capture food particles by surrounding them with their pseudopods and forming a food vacuole for digestion. Amoebas play a vital role in their ecosystem by breaking down organic matter and recycling nutrients.

The word "amoeba" is Latin in origin, derived from the Greek word "amoibe," meaning "change" or "variation." It refers to a single-celled organism that can change its shape.

Both paramecium and elodea cells are eukaryotic cells with membrane-bound organelles. They both have a cell membrane, cytoplasm, nucleus, and other organelles like mitochondria and vacuoles. Additionally, both cells are involved in processes such as growth, metabolism, and reproduction.

It contains nutrients by the food particle. It stores nutrients and then it move onward to the digestive system. It contains nutrients by the food particle. It stores nutrients and then it move onward to the digestive system.

ADDED: A single-celled organism, such as an amoeba, cannot be said to have a digestive "system", but still digests its food by breaking it down chemically.

Neither; influenza ("the flu") is caused by a virus; in particular, an RNA virus of the family Orthomyxoviridae, of which there are several varieties. The flu virus could be thought of as parasitic, since it does invade host cells and use these cells for its replication. But though some biologists may consider bacteria and viruses to be parasites, the medical field does not.

Euglena are small organisms that serve as prey for various aquatic animals like small fish, tadpoles, and some types of zooplankton. Additionally, certain protists and other microorganisms may also feed on euglena as a food source.

The cells in the green alga Volvox are specialized, with each cell performing a specific function such as reproduction, movement, or photosynthesis. These cells work together in a coordinated manner to enable the colony to survive and reproduce.

Chlamydomonas is a eukaryotic microalga. It possesses membrane-bound organelles, including a nucleus, and its cells have a true membrane-bound nucleus.

Flagella, pyrenoids, chloroplasts, and eyespots are organelles commonly found in algae but typically absent in protozoa or fungi.

Volvox has a complex life cycle that involves both asexual and sexual reproduction. In asexual reproduction, daughter colonies are formed through cell division within the parent colony. Sexual reproduction involves the fusion of male and female gametes to form a zygote, which eventually develops into a new colony.

Structures such as the Golgi apparatus, mitochondria, and vacuoles that are present in amoeba and paramecium are also found in plant cells. Additionally, both plant cells and these protists contain a cell membrane, cytoplasm, and a nucleus.

Dinoflagellates are typically larger than Euglena. Dinoflagellates can range in size from 5 to 2,000 micrometers, while Euglena are usually around 50 to 500 micrometers in size.

Paramecium caudatum is a type of protist that feeds on bacteria, algae, and decaying organic matter through a process called phagocytosis. They use their cilia to sweep food particles into their oral groove, where they are engulfed and digested.

Euglena are green because of their chloroplasts.

Bacteria, algae, and yeasts are things that paramecium feed on. To gather its food, the paramecium put its cilia to work. Its cilia sweeps the food along with water into the cell mouth after it drops into the oral groove. The food goes within the cell mouth into the gullet, or the stomach. When the gullet has reached a definite size it breaks away and forms a food vacuole.

Volvox are often found in water: Ditches, ponds, and shallow puddles!

Algae and protozoa are placed in the same kingdom, Protista, because they are both unicellular eukaryotic organisms that do not fit into the plant, animal, or fungi kingdoms. They share certain characteristics such as being aquatic, photosynthetic (in the case of algae), and lacking specialized tissues.

Elodea Is a multicellular celled organism, paramecium is a single organism

Another thing is that Elodea (being multicellular) can not survive on its own

while on the other hand paramecium can