2. enumerate the general characters of phylum coelenterata. Classify up to class level with an example each.
Answers
Kingdom: Animalia
Habitat: aquatic, mostly marine.
Habit: solitary or colonial. Each individual is known as zooid.
Symmetry: radially symmetrical
Grade of organization: tissue grade of organization.
Germ layer: diploblastic, outer ectoderm and inner endoderm. Mesogloea separates these two layer
The body has a single opening called hypostome urrounded by sensor y tentacles.
Coelom: gastrovascular cavity or coelenteron.
Nematocyst: organ for capturing and paralyzing pray, present in tentacles
Nutrition: holozoic
Digestion is both intracellular and extracellular.
Respiration and excretion are accomplished by simple diffusion.
Circulatory system: absent
Nervous system: poorly develop
Many forms exhibit polymorphism ie. Polyp and medusa
Polyps are sessile, asexual stage
Medusa are free swimming, sexual stage
Metagenesis: asexual polypoid generation alternate with sexual medusoid generation
Reproduction:
Asexual: by budding
Sexual: by gamatic fusion
Fertilization: internal or external
Development: indirect with larval stage
(Koilos: hollow, enteron: cavity)
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Answer:
Enumerate the general characters of Phylum Coelenterata and give any two
examples.
Explanation:
\huge\mathfrak{Answer:}Answer:
PHYLUM\:COELENTERATA/CNIDARIA :PHYLUMCOELENTERATA/CNIDARIA:
Kingdom: Animalia
Habitat: aquatic, mostly marine.
Habit: solitary or colonial. Each individual is known as zooid.
Symmetry: radially symmetrical
Grade of organization: tissue grade of organization.
Germ layer: diploblastic, outer ectoderm and inner endoderm. Mesogloea separates these two layer
The body has a single opening called hypostome urrounded by sensor y tentacles.
Coelom: gastrovascular cavity or coelenteron.
Nematocyst: organ for capturing and paralyzing pray, present in tentacles
Nutrition: holozoic
Digestion is both intracellular and extracellular.
Respiration and excretion are accomplished by simple diffusion.
Circulatory system: absent
Nervous system: poorly develop
Many forms exhibit polymorphism ie. Polyp and medusa
Polyps are sessile, asexual stage
Medusa are free swimming, sexual stage
Metagenesis: asexual polypoid generation alternate with sexual medusoid generation
Reproduction:
Asexual: by budding
Sexual: by gamatic fusion
Fertilization: internal or external
Development: indirect with larval stage
(Koilos: hollow, enteron: cavity)
___________________
HOPE IT HELPS ❤️❤️