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They ingest food.
They produce gametes by meiosis.
They reproduce asexually by mitosis.
Food is digested in a central cavity.
The adult form is diploid in a diplontic life cycle.
Acting as a net in a current that sweeps food particles through it.
Squeezing the spongocoel cavity and sucking debris in and out through the osculum.
The beating of the flagella of collar cells, forming a current; food is absorbed by collar cells.
The beating collar cells form a current from osculum to pores; the food is engulfed by amoebocytes in the central cavity of the sponge.
Attaching with a sucker(s) and extracting blood.
Tearing and sucking food particles via a mid-belly dead-end tube.
Slurping food particles through a mouth and excreting waste via an anus.
Soaking all nutrients from the environment through its thin epidermal surface.
Light is detected.
Ciliated sperm are stored.
Undigested food is expelled.
Slow fires actually burn food for energy.
Cilia drive fluids through tubules for excretion.
An infection of the human coelom by Ascaris.
A large number of Trichinella worms encysting in our muscles.
Contracting a disease that usually occurs in elephants.
Microscopic roundworms that reproduce and clog lymph glands, causing limbs to swell.
A protozoan that lives in tropical roundworms and, when ingested by humans, causes muscles to bloat.