dear,
cells have a lipid bilayer and the surface which is seen from outside is same as inside. so we cant see tails from inside yes if we have a cell with single layer membrane than from inside we can see it.
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Helminths are parasitic worms.
Parasitic Worms- Large macro-parasites called helminths, or parasitic worms, are typically visible as adults to the unaided eye. Many are soil-transmitted intestinal worms that infect the gastrointestinal system. Schistosomes and other parasitic worms live in blood vessels.
Gastrointestinal system- The alimentary canal, often known as the digestive system, is the body's mechanism for ingesting food and expelling solid waste. The mouth, throat, esophagus, stomach, small intestine, large intestine, and anus are all parts of the gastrointestinal system.
Helminths- Invertebrates known as helminths have elongated, flat, or circular bodies. Flukes and tapeworms are considered flatworms, often known as platyhelminths (platy is a Greek word that means "flat").
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Answer: Massive and Supermassive stars
Answer:
it may be:
C and D and B the longer the empty space the longer the sound well go
Protista:
This is a kingdom that compromises mostly single-celled organisms (such as: Protazoa)