![jholbrook7643](/avatars/38048.jpg)
jholbrook7643
09.03.2021 •
Biology
How does the support structure of echinoderms differ from that of arthropods?
Solved
Show answers
More tips
- O Other Discovering the Funniest Joke Ever Told...
- F Food and Cooking How to Make Napoleon Cake: A Step-by-Step Guide...
- F Food and Cooking From Latte to Espresso: Which Coffee Drink is the Most Popular on Earth?...
- C Computers and Internet How to Set Up Internet on iPhone? Detailed Guide with Step-by-Step Instructions...
- F Family and Home How to Teach Your Child to Speak: Tips and Recommendations...
- P Philosophy Agnosticism: Opinion or Belief?...
- S Style and Beauty How to choose the best mascara for your eyelashes...
- F Food and Cooking Discover Delicious Recipes You Can Make with Ground Meat...
- C Computers and Internet Google Search Tips and Tricks: Everything You Need to Know...
- S Science and Technology Why is there no gravity on other planets?...
Answers on questions: Biology
- B Biology The characteristics of a wave are affected by which of the following? I wind speed II length of time the wind has blown III tidal range IV fetch...
- B Biology Which equation has (2,-1) as a solution?...
- B Biology A true-breeding pea plant with round, green seeds was crossed to a true-breeding plant with wrinkled, yellow seeds. Round and yellow are dominant traits. The F1 plants were...
- B Biology Recombination in dihybrid crosses You have screened for several new recessive mutations in a species of wasp. Wasps homozygous for apricot (aa) have pale orange eyes. (Wild-type...
- B Biology When dark-colored fur gives mice a 1% competitive advantage and 1% of the population begins with dark fur, in about 1000 years, 95% of the population will have dark fur. Which...
- B Biology 1. magma that cools and crystallizes on earth s surface forms a. quartz b.extrusive rocks c.intrusive rocks d. magma 2.an atom that gains or loses an electron has a net electric...
- B Biology Why is it called the milky way galaxy?...
- B Biology According to cell theory, which activity is impossible?...
- B Biology Which body system is responsible for the movement of the body, as well as the movement of internal organs?...
- B Biology PLEASE HELP ASSIGNMENT DUE TODAY Humans living in developed countries usually use LESS natural resources than those in non-developed countries? True False...
Ответ:
The primary difference between arthropods and echinoderms is their covering. Arthropods have a tough, non-living outer shell called exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons, which develop within the deeper skin or body tissues and act as their protective covering. Echinoderms :
1) Marine
2) Adults are radially symmetrical but larvae are bilaterally symmetrical
3) Respiration through dermal bronchiae, tube feet, respiratory tree or bursae.
4) Circulation by water vascular system(open type)
5) Complete digestive system
6) Specialized excretory organ absent.
7) Brain is absent.
8) Unisexual , without sexual dimorphism , external fertilization and always indirect development.
Arthropoda :
1) All habitats ( almost all )
2) Bilateral symmetry
3) Respiration by general body surface, gills, trachea or book lungs
4) Blood vascular system (open type)
5) Complete digestive system ( extracellular inside the digestive tract)
6) Excretion through malpighian tubules, green gland, coxal gland
7) Nervous system is made up of nerve ring and double, ventral and solid nerve chord.
8) Mostly dioecious. Fertilization is usually internal.
Explanation:
Ответ: