CBSE Class 6 Science Diversity in the Living World (Class 6 NCERT New) Quiz 13

1. Why does the biodiversity of a region vary from that of another?

A Because of diverse conditions such as climatic conditions and resource availability. B Because all regions have the same species. C Because biodiversity never changes. D Because of identical environmental factors everywhere.

2. What adaptation helps the fleshy stems of plants found in the desert survive the hot conditions?

A The fleshy stems of plants found in the desert can store water and help them tolerate the hot conditions. B The fleshy stems of plants found in the desert can absorb sunlight to make food quickly. C The fleshy stems of plants found in the desert can grow very tall to avoid heat. D The fleshy stems of plants found in the desert can produce flowers to attract pollinators.

3. In order to survive in extremely cold regions with frequent snowfall, what adaptation do some trees have?

A Some trees have the ability to let the snow slide off easily due to their conical shape and sloping branches. B Some trees have brightly colored leaves to absorb more sunlight. C Some trees grow fruits during winter to attract animals. D Some trees shed all their branches before winter.

4. What are the differences you observe between hot desert camels and cold desert camels, and what advantages do these differences provide to these camels?

A Hot desert camels have long legs and wide hooves for walking on sand, while cold desert camels have shorter legs and narrower feet for mountainous regions. B Hot desert camels have short legs and narrow feet for walking on rocks, while cold desert camels have long legs and wide hooves for sand. C Both types of camels have the same leg and hoof structure for all terrains. D Hot desert camels have furrier bodies for cold, while cold desert camels have less fur for heat.

5. The long legs and wide hooves of camels in the hot desert help them walk on the sandy desert without sinking into the sand.

A True B False

6. Camels in the cold desert have taller bodies and longer necks than those in the hot desert.

A True B False

7. In deserts, food is not available easily. Camels store food in their humps. Camels found in the hot desert have ___ hump each.

A one B two C three D four

8. Fill in the blank: Camels found in the cold desert have ___ humps each.

A two B one C three D four

9. In deserts, food is not available easily. Camels store food in their humps. Camels found in the hot desert have one hump each that helps them to survive during the scarcity of food. Camels found in the cold desert have two humps each. These two humps shrink in late winters because there is not much food available in the cold desert and they have to use food stored in their humps during that time. Moreover, they grow long hair from head to neck, which help them survive the cold winters of Ladakh.

A True B False

10. Camels can survive for many days without drinking water because they do not lose much ___ from their bodies.

A water B heat C food D energy