Question
Distinguish between Nonchordata and Chordata.
Distinguish between Nonchordata and Chordata.
Nonchordates | Chordates | |
i. | Notochord is absent in them. | Notochord is present in them at some of their developmental stage. |
ii. | Their central nervous system is solid and ventral. | Their central nervous system is hollow and dorsal. |
iii. | Their circulatory system is of open or closed type. | Their circulatory system is of closed type. |
iv. | Heart, if present in them, is dorsal in position. | Heart is always present and is ventral in position. |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Make sketch of hydrological cycle in nature.
What is ozone shield? How is it being corroded?
Describe the structure and functions of nucleus.
What is the difference between parenchyma and collenchyma?
Mention differences between light microscope and electron microscope.