Classifying living things (7-9 years)：练习题

Which of the following is a characteristic feature of all mammals?

A scientist discovers an organism that is multicellular, cannot move from place to place, and makes its own food using sunlight. In which kingdom should it be classified?

An organism has the following characteristics: it has a backbone, it is cold-blooded, it breathes through lungs, and it lays leathery eggs on land. How should this animal be classified?

In the classification of living things, which group is characterized by having a backbone?

Organisms that are made up of only one single cell are classified as:

Which group of vertebrates is characterized by having scales, being cold-blooded, and laying eggs in water?

An organism is multicellular, has a cell wall made of chitin, but cannot perform photosynthesis. Into which kingdom of the five-kingdom classification system should this organism be placed?

Part a: Biological classification is a system used by scientists to organize living things. What are the two main groups that the animal kingdom is divided into based on the presence or absence of a backbone?

Part b: For each of the two groups you named in Part a, provide one example of an animal that belongs to that group.