EVS 601 E Retest

Which of the following is an example of a tropical forest ecosystem in India?

• Gir Forest, Gujarat

• Sacred groves, Meghalaya

• Silent Valley, Kerala

• Sundarbans, West Bengal

In ecological succession, the sequence of communities which are transitory are known as

• Mesarch

• Seral stages

• Primary succession

• Hydrosere

The energy in a pyramid of energy decreases in the following order:

• 100% > 90% > 80% > 70%

• 100% > 50% > 10% > 1%

• 100% > 80% > 60% 40%

• 100% > 10% > 1% > 0.1%

Which of the following is a pioneer species of a xerarch ecological succession?

• Herbs

• Lichens

• Shrubs

• Grass

Which of the following is the topmost layer in a Tropical Forest Ecosystem?

• Canopy

• Emergent

• Understory

• Forest floor

The desert plants have adaptations such as:

• Scaly and succulent leaves, deep roots

• Green broadleaves and bright flowers

• evolved roots to absorb water and nutrients from air

• Traps to catch insects

An example for upright pyramid of number is

• Detritus food chain

• Parasitic food chain

• Forest Ecosystem

• Grassland ecosystem

Psammosere type of ecological succession starts on

• Saline area

• Watery area

• Sandy area

• Dry area

In the process of ecological succession, reaction refers to

• Influence of individuals on each other

• Modification of the environment

• Formation of a bare area

• Establishment of individuals

Which of the following is not a pyramid of number?

• Upright Pyramid

• Partially Upright Pyramid

• Inverted Pyramid

• Partially Inverted Pyramid