Animals are generallymotile.They have the capacity to move at will. They can spontaneously and actively move by metabolically utilizing energy (e.g.ATP) during the process and with the aid of muscles and locomotory structures (e.g. arms, legs, wings, fins, tails, etc.). Animal locomotion ...
Mollusca Arthropoda Echinodermata (Note: 1-8 are the invertebrate phyla) Chordata (large phylum with all the vertebrates) Phylum Chordata Figure 8: Typical characters of chordates are marked in the figure. This phylum has some characteristic features: ...
Mollusca: snails Echinodermata: starfish Hemichordata: acorn worms Chordata: humans Lesson Quiz Course 6.6Kviews Phylum Chordata Classification Some species in the phylum Chordata, particularly tunicates and lancelets, seem to have very little in common with other familiar chordates. But the definition...
Ctenophora- These are jelly-like animals, such ascomb jellies, but they don't have stinging cells. Echinodermata- This is one of my favorite phylums. It includes such beautiful animals as sea stars, brittle stars, basket stars, sand dollars and sea urchins. Mollusca-This phylum includes sn...
Hemichordata- This phylum contains worm-like animals that share some characteristics with chordates, including having nerve cords. Mollusca-This diverse phylum includes an estimated 50,000 to 200,000 species of snails, sea slugs, octopuses, squids, and bivalves such as clams, mussels, and oysters...
mtDNA, which is normally inherited in vertebrate animals maternally, can be used with a certain caution. For this reason, the presence in samples of a fragment of mtDNA (or even a complete mitogenome) of Type A specimen in the study of Type B specimens can be explained by a hybridization...
Gastropod, any member of more than 65,000 animal species belonging to the class Gastropoda, the largest group in the phylum Mollusca. The class is made up of the snails, which have a shell into which the animal can withdraw, and the slugs, which are snai
6 pairs of thoracic appendages, cirriform. Alimentary canal present. Examples: Lepas (Goose barnacle), Balanus (Acorn barnacle). Order 2. Acrothoracica Parasitic forms bore into the shell of Mollusca and corals. Unisexual. Sessile. Mantle reduced to a chitinous attachment disc. ...
ίωsις, meaning ‘living’ and is defined as the persistent association of two or more dissimilar species. Many decades ago,de Baryintroduced into German the word “Symbiose” to refer to detrimental as well as beneficial associations of different creatures, and so included forms of ...
mtDNA, which is normally inherited in vertebrate animals maternally, can be used with a certain caution. For this reason, the presence in samples of a fragment of mtDNA (or even a complete mitogenome) of Type A specimen in the study of Type B specimens can be explained by a hybridization...