Protists

Paramecium is not a parasitic organism. It is a free-living, single-celled protist that can be found in various aquatic environments. It feeds on bacteria and smaller organisms by using cilia to sweep them into its oral groove.

A mammal, such as a dog or cat, is not a protist. Mammals belong to the kingdom Animalia, whereas protists belong to the kingdom Protista.

i think protist got its name by having a variety of what its about. For example, some protist are autotorophs and heterotrophs multicellular unicellular all this. think about it pro means avanced expert protist, has all these things going on that its needs are met.

if im wrong dont blame me im only 12 looking at page 28 in my science book lol

The amoeba in Figure 15 belongs to the group of protozoans called sarcodines. Sarcodines move and feed by forming pseudopods (soo duh pahdz)---temporary bulges of the cell. The word pseudopod means "false foot." Pseudopods form when cytoplasm flows toward one location and the rest of the organism follows. Pseudopods enable sarcodines to move. For example, amoebas use pseudopods to move away from bright light. Sarcodines also use pseudopods to trap food. The organism extends a pseudopod on each side of the food particle. The two pseudopods then join together, trapping the particle inside.

FROM SCIENCE EXPLORER 2009 LIFE SCIENCE BOOK

The nucleus of amoebas and protozoans contains genetic material such as DNA and controls the cell's activities including growth, metabolism, and reproduction. It acts as the command center of the cell, directing essential functions and enabling cell division.

Pseudoplasmodium is a collection of amoebae that have combined due to a loss of food source. This aggregated of amoebae forms a slug structure with a defined body that is motile and responds to light and temperature. Under specific conditions, this grex can 'sprout' out stalks that create spore like structures to form a protective cellular wall. These spores can turn into individual amoebae when a food supply is replenished.

Naegleria is a protist that belongs to the phylum Percolozoa. It is a free-living amoeba found in freshwater environments worldwide. Naegleria fowleri, in particular, is known to cause a rare but severe brain infection called primary amebic meningoencephalitis.

Protists can be unicellular, multicellular, or colonial. Some protists are single-celled organisms, while others form colonies of cells, and a few are multicellular with specialized tissues.

Organisms in the Kingdom Protista move using various methods such as cilia, flagella, pseudopods, or by simply drifting with the water current. Cilia are short, hair-like structures that beat in a coordinated manner to propel the organism, while flagella are longer whip-like structures that provide movement. Pseudopods are temporary bulges of the cell membrane that extend and contract to pull the organism forward.

Paramecium is a representative of the protist group called ciliates. They are single-celled organisms with hair-like structures called cilia that help in movement and feeding. Paramecium are found in freshwater environments and play a role in aquatic ecosystems.

The organisms known as sponges were originally considered animals by zoologists due to their ability to move and filter feed. However, they were also claimed to be plants by botanists due to their sessile nature and lack of clearly defined tissues. Eventually, sponges were classified as animals based on genetic and developmental studies.

Different kinds of protists get their food in different ways. Some protists can move and can take in food like animals do. Plant-like protists need to absorb the sun's energy in order to make food inside their bodies. Other protists like fungus grow above their food source to get nutrients. Some protists engulf bacteria and digest them internally, by extending their cell membrane and forming a vacuole around the bacteria. This bacteria is then taken in by phagocytosis. Protists such as Dinoflagellates, Euglena, and Algae are Phototrophs that get their energy from sunlight. Protists like Apicomplexa, Trypanosomes, and Amobae are Organotrophs that get their energy from organic compounds.

Animal-like protists in the phylum Sarcodina are known as amoebas. They move and feed by extending and retracting pseudopods, which are temporary bulges of the cell membrane. Amoebas primarily engulf food particles through phagocytosis.

In crayfish, the walking legs and gills are attached because they share a common function of facilitating oxygen exchange. The movement of the walking legs helps to create a flow of water over the gills, allowing for oxygen to be absorbed and carbon dioxide to be released. This adaptation helps crayfish efficiently obtain oxygen from their aquatic environment.

Around 1980 taxonomists started to use phylogeny as the main factor in classification. As a result, some Taxa have entered an ambiguous grey zone while taxonomists debate where to place them. Amoebas are among these. They were once part of a phylum known as Sarcodina, but are now given their own phylum Rhizopoda.

It depends on what the jellyfish eat if the jellyfish does not make its own food it is a consumer

Lysosome contain digestive enzymes for almost all type of organic material. If their covering membrane breaks as it happens during injury to cell, the digestive enzymes will spill over cell content and digest the same. As lysosomes are organelles which on bursting can kill cells possessing them ,they are called suicide sacs.

Examples of roundworm parasites include Ascaris lumbricoides, which can cause intestinal infections in humans, and hookworms like Ancylostoma duodenale and Necator americanus, which infect the intestines and may cause anemia. Trichinella spiralis is another roundworm parasite that can be ingested by consuming undercooked meat, leading to trichinosis.

Amoeba obtains its nutrition in a heterotrophic mode. Both the anabolic and catabolic functions are carried out in the same cell. Amoeba feeds on plankton and diatoms present in water. It can form arm- like structures called pseudopodia, extending from any part of its body as it is shapeless. When it senses food in its surroundings it extends its pseudopodia in that direction and moves towards it. then it engulfs the food with its pseudopodia. When the food enters its body the amoeba forms a food vacuole around it which contains certain enzymes to digest the food. When the food is digested the unwanted waste is released through its body surface.

Proteins are made in cells at structures called ribosomes. Ribosomes can be found in the cytoplasm of the cell or attached to the endoplasmic reticulum. These organelles are responsible for translating the instructions carried by messenger RNA (mRNA) into protein molecules.

Organelle 11 likely plays a critical role in the specific function of the cell, such as energy production, protein synthesis, or waste management. Without organelle 11 functioning properly, the cell may not be able to carry out its normal activities and maintain its overall health and functionality.

The ileum refers to the last part of the small intestine, and is composed of many cells.

A wolf is made up of eukaryotic cells. Eukaryotic cells have a nucleus and other membrane-bound organelles, which are characteristics found in the cells of multicellular organisms like wolves.

The telephone country code for the United Arab Emirates is +971, and mobile numbers in the UAE begin with +971 5. (You must drop the trunk prefix 0 from the UAE domestic telephone number to put it into international format.)

To dial a mobile number in the UAE using a phone card, follow the instructions on the card, or follow the voice prompts to enter an international telephone number. You may need to use an international access prefix to enter the number. The most commonly used prefix is 00, but North America (USA, Canada, etc.) uses 011. The prefix you need to use for the calling card may depend on where the calling card provider is based, and may be different from the prefix you would use if you were dialing the call directly from your location.

Yes, excitable cells like neurons are more permeable to sodium ions than potassium ions. This selective permeability is due to the presence of more sodium channels compared to potassium channels in the cell membrane, allowing sodium to flow into the cell more readily during an action potential.