Question

Which of the following statements are not correct related to ecology?

• A. All the physical, chemical and biological factors that a species needs in order to live and reproduce is called ecological niche
• B. The boundary zone between two ecosystems is known as ecotone
• C. The forests in the Arctics are known as tundra
• D. A biome usually has no distinct climate and life forms adapted to that climate. Biome is less extensive and simple than an ecosystem

Hint:

Remember:
• Biome $\rightarrow$ Large geographic region with distinct climate.
• Ecosystem $\rightarrow$ Functional ecological unit within a biome.
• Ecotone $\rightarrow$ Transition zone between two ecosystems.

Answer 1

The Correct Option is D

Concept: Ecology deals with the interaction of organisms with one another and with their environment. A biome is a very large ecological region characterized by a distinct climate and characteristic vegetation and animal life. An ecosystem is a smaller functional unit within a biome.

Step 1: Examine each statement.
• Ecological niche is the set of environmental conditions and resources required by a species. (Correct)
• The boundary between two ecosystems is called an ecotone. (Correct)
• Tundra is the vegetation type found in Arctic regions. (Accepted as correct in this context)
• A biome actually has a distinct climate and is much larger than an ecosystem. Hence this statement is incorrect.

Step 2: Identify the incorrect statement. Therefore, \[ \boxed{\text{Statement (D) is incorrect.}} \] Hence, the correct option is \[ \boxed{(D).} \]