In: Biology
3. The exoskeleton of arthropods is composed of _______ and _______ a complex polysaccharide.
4. What type of symmetry (radial/bilateral) do nematodes and arthropods have?
5. What type of body cavity (coelom/pseudocoelom) do the nematodes have?
Chegg's guidance allow us to answer first four question. Kindly re post the other.
Answer 3 – The exoskeleton of Arthropoda is composed of calcium carbonate and chitin, a complex polysaccharide.
Answer 4 – Nematodes and Arthropoda have bilateral symmetry which means that their can divide into two equal halves.
Answer 5 – Nematodes have pseudocoelom body cavity as they don’t possess true coelom.
Answer 5 – Arthropods have a modified coelom in which blood and body fluid mix. This shows that arthropod have open circulatory system which possess body cavities called hemocoels.