Choose the best answer:

a. Species with low population numbers that are in considerable danger of elimination are termed as ––––––––––(endangered species / extinct)

b. All non-domesticated and non-cultivated biota in the natural environment are termed –––––––––––––(wildlife / ordinary life)

c. The natural vegetation in a particular area is termed as –––––––––– (flora / forest)

d. All the organisms of the animal kingdom are termed as ––––––––––– (fauna / protozoans)

e. The word ‘dinosaur’ means –––––––––––––– (terrible lizard / dragon lizard)

a. Species with low population numbers that are in considerable danger of elimination are termed as endangered species

When the population of a species continues becoming less in number, with danger of elimination, they are referred to as ‘endangered species’.
When no more individuals of that species is alive anywhere in the world, the species is defined as ‘extinct species’.

b. All non-domesticated and non-cultivated biota in the natural environment are termed wildlife

We often say that, “we are going to the zoo to look at wildlife.” The definition of wildlife is also structured in the same context. Wildlife refers to non-domesticated (when referring to animals) and non-cultivated (plants) biota in the natural environment.
For example: Lions, birds, deer, etc. are largely non-domesticated and present in the natural environment (i.e forests). Hence, they would come under the definition of wildlife. Similarly, plants such as sunflower, thyme, etc. are also considered wildlife.

Note: Biota refers to a grouping of animals, plants, or other organisms that share the same geographical region on Earth.

c. The natural vegetation in a particular area is termed as flora.

Flora is a term used to collectively refer to all the plants occurring in a particular region. For example, the flora of India will refer to all the species of plants in India.
A forest mostly refers to a large area covered chiefly with trees.

The diagram below shows an example of flora on an island: (the flora of this island has four species of plants)

d. All the organisms of the animal kingdom are termed as fauna.

All Life on this planet has been divided into broad categories or “kingdoms” according to the cell structure, nutrition requirements and body organisation of different organisms. The animal kingdom includes all animals.
Protozoans are unicellular organisms belonging to the animal kingdom.
Hence, protozoans refer to only few organisms of animal kingdom; and all organism of animal kingdom are called as fauna.

e. The word ‘dinosaur’ means terrible lizard

The term dinosaur is derived from Greek; ‘dienos’ meaning terrible, and ‘sauros’ meaning lizard. Hence, the literal meaning of the word dinosaur becomes “terrible lizard”.