Tag: adaptations to different ecosystems

Questions Related to adaptations to different ecosystems

Multiple choice adaptations - european woodland and african grassland adapting to a habit plant adaptations adaptations to different ecosystems biology

In the grasslands, trees do not replace the grasses as part of an ecological succession because of.

  1. Insects and fungi

  2. Limited sunlight and paucity of nutrients

  3. Water limits and fire

  4. Cool temperatures and good soil

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In grasslands, periodic fires and limited water availability prevent the establishment and growth of woody trees. These environmental filters keep the ecosystem in a subclimax state dominated by grasses rather than progressing to a forest.

Multiple choice adaptations - european woodland and african grassland adapting to a habit plant adaptations adaptations to different ecosystems biology

Which one of the following tropic levels in the food chain has the maximum energy?

  1. Herbivores

  2. Carnivores

  3. Producers

  4. Decomposers

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

According to the 10 percent law of energy transfer in ecosystems, energy decreases at each successive trophic level. Producers, being at the first trophic level, capture solar energy and possess the maximum amount of available energy.

Multiple choice adaptations - european woodland and african grassland adapting to a habit plant adaptations adaptations to different ecosystems biology

What is reason of African desert expanding?

  1. Climate change and Human Activities

  2. Deforestation

  3. Over cultivation

  4. Exploitation of resources

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The expansion of deserts, or desertification, is primarily driven by a combination of climate change and unsustainable human activities such as overgrazing and deforestation.

Multiple choice adaptations - european woodland and african grassland adapting to a habit plant adaptations adaptations to different ecosystems biology

Oil, coal and natural gas supply approximately ___________ % of the energy used in the United States

  1. 10

  2. 25

  3. 40

  4. 90

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fossil fuels (oil, coal, and natural gas) have historically provided the vast majority of the energy consumed in the United States, typically accounting for 80-90 percent of the total.