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ZOOPLANKTON :<3: (ROTIFER (Characteristics (Lifespan – 3.4 – 4.4 days…
ZOOPLANKTON :<3:
ROTIFER
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Reproduction
Good times
During female parthenogenesis the amictic females produce amictic (diploid, 2n chromosomes) eggs which develop and hatch into amictic females.
Bad Times (Under specific adverse environmental conditions)
Females switch to sexual reproduction, resulting in mictic and amictic females.
marine water specis
B. rotundiformis , Brachionus plicatilis
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COPEPOD
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single median compound eye, usually bright red and in the centre of the transparent head
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Calanoida, Cyclopoida, and Harpacticoida
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sexual
During mating, the male copepod grips the female with his first pair of antennae, which is sometimes modified for this purpose.
The male then produces an adhesive package of sperm and transfers it to the female's genital opening with his thoracic limbs
Eggs are sometimes laid directly into the water, but many species enclose them within a sac attached to the female's body until they hatch.
