JELLYFISH DISSECTION
Like the sponge, the jellyfish has a very simple system. It also circulates water through its body, but the water also acts like its support system, giving it a "water skeleton". It has the beginning of the nervous system, with tentacles and arms to help it sense its surroundings and to help it eat. It has radial symmetry, so each side of the jellyfish's body is the same. It is exactly like the sponge, only it moves in the water (if it is a jellyfish in medusa form) or it can be in polyp form, where it is planted on a rock in the water.
Ecology of Coral; phylum Cnidaria: Corals need a reasonable temperature, water depth, and light intensity to survive. In order to get these things, corals partner up with algae that supply these nutrients for them. But the human population has been damaging coral with pollution, etc. The act of coral bleaching is also damaging the algae that provides food for the coral.
Subgroups of Cnidarians: The subgroups of Cnidaria are Anthozoa, Cubozoa, Hydrozoa, and Scyphozoa. These include hydras, anemones, and corals.
Like the sponge, the jellyfish has a very simple system. It also circulates water through its body, but the water also acts like its support system, giving it a "water skeleton". It has the beginning of the nervous system, with tentacles and arms to help it sense its surroundings and to help it eat. It has radial symmetry, so each side of the jellyfish's body is the same. It is exactly like the sponge, only it moves in the water (if it is a jellyfish in medusa form) or it can be in polyp form, where it is planted on a rock in the water.
Ecology of Coral; phylum Cnidaria: Corals need a reasonable temperature, water depth, and light intensity to survive. In order to get these things, corals partner up with algae that supply these nutrients for them. But the human population has been damaging coral with pollution, etc. The act of coral bleaching is also damaging the algae that provides food for the coral.
Subgroups of Cnidarians: The subgroups of Cnidaria are Anthozoa, Cubozoa, Hydrozoa, and Scyphozoa. These include hydras, anemones, and corals.