Advertisements
Advertisements
Question
How do chordates differ from non-chordates?
Distinguish Between
Solution
| CHORDATES | NON-CHORDATES |
| Notochord is found in all stages of the life-cycle | Notochord is not found in any stages of the life-cycle. |
| Heart is situated on ventral side of the alimentary canal. | Heart is poorly formed and if present it is situated on the dorsal side. |
| Nervous system is situated on the dorsal side | Nervous system is situated on the ventral side. |
| RBCs are present in blood. | RBCs are absent in blood. |
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Give two examples of Segmented worms:
Categorize the following animals under their appropriate columns of classification
| Animals | ||||
| Dog | Grasshopper | Rat | Scorpin | Toad |
| Butterfly | Lizzard | Turtle | Frog | Bat |
| Snail | Honey bee | Pigeon | Liverfluke | Leech |
| Cattle | snake | Rohu | Parrot | Ascaris |
| Earthworm | Cow | Rabbit | Monkey | Elephant |
|
Classification: |
||||
| Worms | Molluscs | Fishes | Amphibians | Reptiles |
| Birds | Mammals |
Match the following.
| Group | Characteristics | ||
| 1. | Molluscs | a. | Feed milk to young ones, warm-blooded |
| 2. | Spongers | b. | bag-like body with tentacles around the opening |
| 3. | Flatworms | c. | fins, gills and cold-blooded |
| 4. | mammals | d. | body with large opening and many small pores all over |
| 5. | Fish | e. | jointed legs, exoskeleton |
| 6. | cnidarians | f. | have only one opening |
| 7. | arthropods | g. | hard shell, soft body |
| h. | cylindrical, unsegmented body with mouth at one end and anus at the posterior end |
Differentiate between
warm-blooded and cold-blooded animals.
Find the odd one out. Give reason.
snake, alligator, eel, turtle
Answer in detail.
Why are mammals regarded as the most advanced animals?
Give reason for the following.
What happens to the body temperature of a fish when the temperature of water drops?
Mention any one major similarity and one major difference in the following pairs of an animal:
Snakes and Earthworms
Write zoological names of roundworm.
Why are eggs of reptiles covered with shells unlike the eggs of amphibians?
