Biology
Tick-mark the features that characterise vertebrates:
- Dorsal nerve cord
- Haemoglobin dissolved
- Three or more pairs of limbs
- A tail behind the level of the anus
- Dorsal heart
Related Questions
Rearrange the following categories of animal grouping in a sequence starting from the highest downward to the lowest.
Class
Phylum
Species
Genus
Kingdom
Mention the name of the phylum against the following characteristics
- No single mouth but numerous pores as water inlets …………… .
- Jointed appendages …………… .
- Unsegmented body with a protective calcareous shell …………… .
- Locomotion by tube feet …………… .
- Long, cylindrical and unsegmented body …………… .
- Small, flat, unsegmented worms …………… .
Name the phyllum of each of the following invertebrates
Animals Phyllum Leech Hydra Tapeworm Sea cucumber Sponge Roundworm Scorpion Slug Centipede Butterfly Listed below are eleven characteristics (i-xi) in Column I and the five classes (a-e) of Chordata in Column II. Match at least two characteristics with each class.
Column I
(Characteristics)Column II
(Classes)Three chambered heart Pisces Feathers Two-chambered heart Eardrum in a pit Amphibia Scales External ears Gills Reptilia Moist skin Horny scales on Skin Homeothermal Aves Testes in scrotum Mammalia