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Critters of the Chesapeake Bay Sea Stars or Starfishes
They are a very strange group of animals!Sea Stars Sea stars, or starfishes, or starfish are echinoderms, which means “spiny-skinned”. They are a very strange group of animals!
Sea Stars Unlike most advanced animals which are bilateral, echinoderms show radial symmetry as adults. This means they have no head and no tail.
Sea Stars The most distinctive structure of an echinoderm is an elaborate water-pumping system which operates its tube feet.
Sea Stars At the center of their bottom or oral side is their mouth.They like to feed on such things as clams and oysters.
Sea Stars Sea stars lack a brain, but they have two stomachs! One for digestion and the other stomach can be extended outward to engulf and digest prey.
Sea Stars Sea stars are known for their ability to regenerate lost arms. Their ability to regenerate depends on the species.
Sea Stars In some types, a new sea star may be regenerated from a single arm attached to a portion of the central disk.
Sea Stars Sea stars tend to found in the saltier waters near the mouth of the bay and the ocean inlets where other echinoderms are found.
Crown-of-Thorns can impact a reef
The Pacific Sunflower star can reach about 5 feet in diameter.
Echinodermata Spiny Skinned.
Diversity Echinodermata means “spiny skin” Echinoderms usually inhabit shallow coastal waters and ocean trenches organisms in this class include:
Echinoderms “Life with Spiny Skin”. Worms, mollusks, and arthropods all have bilateral symmetry. Worms, mollusks, and arthropods all have bilateral symmetry.
Gabriel Dominguez Marisa Ramunas Biology – Period 8 ECHINODERMS.
Phylum Echinodermata Unit 4.
Chapter 14, Echinoderms. Characteristics of Phylum Echinodermata One of the strangest and most unusual of all the phylums in the animal kingdom Echinoderms.
Echinoderm Characteristics Copyright © McGraw-Hill Education Echinoderms are Deuterostomes Echinoderms are deuterostomes – a major transition in the phylogeny.
Characterized by radial symmetry Several arms radiating from a central body body consists of five equal segments, each containing a duplicate set of.
Sea Star Pre-lab Questions
Echinoderms and Invertebrate Chordates
Phylum Echinoderms. Invertebrates EchinodermsEchinoderms Characteristics of Phylum:Characteristics of Phylum: –Name means "Spiny Skin" –Endoskeleton –Water.
Sea cucumber. tentacles of the sea cucumber sea cucumber.
Echinoderms Phylum Echinodermata.
Most Mollusks have shells & Echinoderms have spiny skeleton MOLLUSKS ARE SOFT-BODIED ANIMALS MOLLUSKS SHOW A RANGE OF ADAPTATIONS ECHINODERMS HAVE UNUSUAL.
Phylum Echinodermata Sea stars sea lilies sea urchins feather stars
Echinodermata Olivia Johnson, Andrei Anashkin, Heather Schlesier
Phylum Echinodermata Kingdom Animalia.
ANIMALS WHAT IS AN ANIMAL? ANIMALS ARE MANY CELLED ORGANISMS THAT MUST OBTAIN THEIR FOOD BY EATING OTHER ORGANISMS. NEED WATER, FOOD, AND OXYGEN TO SURVIVE.
Phylum Echinodermata "Spiny Skin" Strangest group in animal kingdom Closest invert relation to the Chordates Endoskeleton just under skin Lack sensory.
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