Tag: desert ecosystem

Questions Related to desert ecosystem

Which of these are abiotic components?

biology adaptation terrestrial adaptations in plants adaptation in terrestrial plants terrestrial adaptation desert ecosystem terrestrial adaptation in animals

  1. Air

  2. Water

  3. Soil

  4. Rocks

  5. All of the above

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Correct Option: E
Explanation:
The non-living things such as rocks, soil, air, and water in the habitat constitute its abiotic components.

Which of these is a biotic component?

biology adaptation terrestrial adaptations in plants adaptation in terrestrial plants terrestrial adaptation desert ecosystem terrestrial adaptation in animals

  1. Plant

  2. Dust

  3. Table

  4. Car

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Correct Option: A
Explanation:

Plants is the biotic component.

What type of plants are found in deserts?

biology adaptation terrestrial adaptations in plants adaptation in terrestrial plants terrestrial adaptation desert ecosystem terrestrial adaptation in animals

  1. Cactus

  2. Pines

  3. Fir trees

  4. Both B and C

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Correct Option: A
Explanation:

Cactus are found in deserts as they are adapted to live in dry conditions.

Small changes that take place in the body of a single organism over short periods, to overcome small problems due to changes in the surroundings, are called

biology adaptation terrestrial adaptations in plants adaptation in terrestrial plants terrestrial adaptation desert ecosystem terrestrial adaptation in animals

  1. Acclimatisation

  2. Adaptation

  3. Germination

  4. None of these

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Correct Option: A
Explanation:

Small changes that take place in the body of a single organism over short periods, to overcome small problems due to changes in the surroundings, are called Acclimatisation.

The broad-leaved trees found on mountains shed their leaves before the onset of _______.

biology adaptation terrestrial adaptations in plants adaptation in terrestrial plants terrestrial adaptation desert ecosystem terrestrial adaptation in animals

  1. Winter

  2. Summer

  3. Autumn

  4. Spring

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Correct Option: A
Explanation:

The broad-leaved trees found on mountains shed their leaves before the onset of winter. This prevents such trees from losing water from their leaves.

The north-facing side of a hill in a mountainous region in the US tends to:

biology adaptation terrestrial adaptations in plants adaptation in terrestrial plants terrestrial adaptation desert ecosystem terrestrial adaptation in animals

  1. Receive less sunlight during a year than the south-facing side

  2. Grow a variety of trees that are typically observed at higher elevation

  3. Be a better location for a ski run than the south-facing side

  4. All of the above

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Correct Option: D

The Native Place of Redwood trees?

biology adaptation terrestrial adaptations in plants adaptation in terrestrial plants terrestrial adaptation desert ecosystem terrestrial adaptation in animals

  1. Australia

  2. Amazon

  3. California

  4. Thailand

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Correct Option: C

A permeable rock that contains hydrocarbon fluids and gasses is called a/an

biology habitat and adaptation terrestrial adaptations in plants desert ecosystem adaptation in terrestrial plants

  1. Oil trap

  2. Source bed

  3. Oil reservoir

  4. None of these

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Correct Option: C

Which of the following is an important adaptation of animals too the cold climate?

biology habitat and adaptation terrestrial adaptations in plants desert ecosystem adaptation in terrestrial plants

  1. Thin layer of body fat

  2. Aestivation

  3. Increased tendency to shivering

  4. Reduced surface area to volume ratio

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Correct Option: D
Explanation:

Temperature affects the the absolute size of an animal and the relative proportions of various body parts, Birds and mammals attain grater body size in cold regions than in warm areas. But poikilotherms are smaller in cold region. This is Bargeman's rue. This is true because small animals have larger surface area relative to their volume, so if they are in cold, they lose their body heat very fast. In cold climate, reduced surface area to volume ratio is ideal. So, the correct answer is 'Reduced surface area to volume ratio'.

Which of the following is not an important adaptation of animals to cold climate?

biology habitat and adaptation terrestrial adaptations in plants desert ecosystem adaptation in terrestrial plants

  1. Thin layer of body fat

  2. Aestivation

  3. Increased tendency to shiver

  4. Reduced surface area to volume ratio

Show answer
Correct Option: B
Explanation:

The animals living in cold climate have various physiological adaptations like:

1) A thick layer of body fat called as Blubber to avoid loss of heat from body tissue.

2) Hibernation is a property of suspended metabolism in these organisms to surpass cold conditions.similar mechanism called aestivation exists in desert animals to survive in arid and hot conditions.

3) Increased tendency to shiver causes an increase in body temperature because of exercise thus help to withstand low temperatures.

4) The reduced surface area to volume ratio to prevent heat loss from the body surface. So, the correct answer is 'Aestivation'.