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They cannot eat continuously (there mouth and anus are present in the same opening)
Organisms that have only one opening in their digestive tract through which food enters and waste exits are known as having an incomplete digestive system. Some organisms with incomplete digestive systems are jellyfish, sea anemones, flatworms, and corals.
Yes a deer is a monogastric (having one digestive cavity) herbivore (animal that gets its energy from eating plants and only plants).
Wat is the disadvantage to having 4 fins on a rocket.?
what is the disadvantage of having excess solvent during recrystalization
I'm having a dentist look at my cavity tomorrow.
Some animals have only one opening (e.g. starfish), but having two openings (input and output) permits a long "disassembly line" type of processing of food that more efficiently extracts nutrients.
suggest reasons why you think it is a disadvantage to have many children?
The disadvantage of having a desk diary in the office is that the aspect of privacy might be infringed by certain workers.
Leeches have a complete digestive tract. Leeches are members of Phylum Annelida. This phylum has the general characteristic of having a complete digestive tract, i.e. food goes in through the mouth, pass through digestive tract of some sort like stomach and/or intestine, waste gets discarded through some sort of rectal opening, i.e. anus. In comparison, an incomplete digestive tract generally means food goes in and waste come out of the same opening, i.e. mouth=anus. Lower level invertebrates have incomplete digestive tract like Phylum Cnidaria and Phylum Platyhelminthes members.
Having to pay interest.
disadvantage of society of authority