ECO | MCQs

Explanation

The desert ecosystem of Bhakkar and Mianwali districts in Punjab, Pakistan is known as the Thal Desert.

It is a sandy, arid region located between the Indus and Jhelum rivers.

Explanation

Charles Elton defined a species' niche as its occupation — the role it plays in its environment.

It includes how the species obtains food, interacts with other organisms, and its place in the ecosystem structure.

Explanation

The Tundra ecosystem in Pakistan is found in the high-altitude regions of the Karakoram and Hindukush Mountains.

This ecosystem is characterized by cold climate, permafrost, and low vegetation like mosses and lichens.

Explanation

• The mismatched one is "Glass snake."
• The other three are all types of snakes: Coral snake, Sea snake, and Rattlesnake.
• However, the glass snake is not a snake; it's a legless lizard.

Explanation

Explanation

The breakdown of glucose by microorganisms, such as yeast, is called alcoholic fermentation.

Explanation

In fact, at least 75 percent of flowering plants are pollinated by insects and animals, including:

bees,

butterflies,

hummingbirds,

moths,

and bats.

Explanation

Facultative organisms can live on organic residues as saprophytes;

but they can also infect living plants as parasites when conditions are favorable.

Those organisms that live primarily as saprophytes are called facultative parasites.

Those organisms that live primarily as parasites are called facultative saprophytes.

Explanation

The sulphur shower is a phenomenon in Pines related to their pollination.

Sulphur shower involves the release of yellow pollen into the air by mature Pines.

The Sulphur shower of Pinus (Pines) represents “Winged Seeds” as the released pollen is carried by air to female cones.

Explanation

Cutting trees can result in the loss of habitat for animal species, which can harm ecosystems. 

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VU CBT FIA SI ASI PAPER 13-12-2021