Question

Q: Table 1.1 shows some features of the five groups of vertebrates.
Complete Table 1.1 to compare the five groups of vertebrates using a tick (V) to
indicate if the group shows the feature, or a cross ( X) if not.
The first row has been completed for you.
Table 1.1
Group of
Scaly skin External ear feathers glands
vertebrates
birds
х
х
fish
amphebians
reptiles
mammals

Answer 1

humans are mammal

Lizard are reptile

amphebians are frog

Answer 2

The given tabular column shows the feathers of vertebrates:

Explanation:

• Animals that have a backbone are called vertebrates.
• It include reptiles, amphibians, birds, mammals and fishes.
• The main features of vertebrates given below:

1. Amphibians - Moist permeable skin
2. Fish - wet scales, gills
3. Reptiles - Dry scales
4. Birds - Feathers, beaks
5. Mammals - Mammary glands , Fur