How can endoskeleton of echinoderms be characterized
How can endoskeleton of echinoderms be characterized in the comparison of analogous structures existed in arthropods, vertebrates, and molluscs?
Expert
The echinoderm skeleton is interior that is it is an endoskeleton. It is made up of calcium carbonate (or calcareous).Vertebrates as well contain internal skeleton made up of bones and cartilages. Arthropods contain an external carapace made up of chitin, a chitinous exoskeleton. Various molluscs present a calcareous shell which works as exoskeleton.
What are the ways to identify core competence?
Describe the function of keratin in epidermis?
State the logical order in which concepts of the atoms, molecules, cells... up to biosphere are related?
What are the positional modifications in pain noted by patients with pericarditis?
Write down the epidemiological association between HIV infection and hemophilia?
What can be said about the valves of the venous system and explain their functions?
Illustrate is the esophagus a muscular organ or not? Why even in a patient lying completely flat on a hospital bed can the swallowed food arrive at the stomach?
a) Browsers, which search through corporate intranets. b) Agents, software that seeks out information. c) "Knowledge maps," indices that classify information and help users determine the location of the information. d) Metadata or electronic card catalogues, which summariz
Give a brief explanation of the term biome.
Historically what were two major evolutionary theories?
18,76,764
1939543 Asked
3,689
Active Tutors
1417838
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!