12 Class Fsc Part 2 Short Questions Online Preparation Biology (Some Major Ecosystems)

Question # 1

What is the effect of human impact on Tundra Ecosystem?

Ans 1: Tundra is perhaps the most fragile of all biomes because of its short growing season.Human activities in the tundra leaves scar that persists for centuries.Fortunately for the tundra inhabitants,the impact of civilization is localized around oil drilling sites,pipelines,mines and military bases.

Question # 2

Differentiate between alpine and boreal forests.

Ans 1: Forests:Coniferous forests located at high altitude are called alpine forests.
Ans 2: Boreal Forests:Coniferous forests located at high latitudes are called Boreal forests.

Question # 3

Write two adaptations for terrestrial ecosystem.

Ans 1: Two adaptations for terrestrial ecosystem are
Ans 2: i) Conservation of water
ii) Presence of supporting tissues

Question # 4

Characterize profundal zone of fresh water lakes.

Ans 1: Here light is insufficient to support photosynthesis.This area is mainly nourished by detritus. Decomposers and detritus feeders such as snails and certain insect larvae,bacteria,fungi and fishes inhabit it.

Question # 5

What is the difference between savanna and prairies?

Ans 1: Prairies:Grass land ecosystem present in temperate climate is called prairies.Grass land without woody trees is also known as Prairies.
Ans 2: Savanna:Grass land ecosystem with woody plants is called Savanna.

Question # 6

Write soil conditions of Grassland Ecosystem.

Ans 1: The soil moisture is limited on account of low precipitation and high evaporation.Upper soil layer in which grasses are rooted is normally moist but deeper layers are constantly dry.The soil of grass land is basically impermeable with excessive salinity.

Question # 7

What is average rainfall in temperate deciduous forests?

Ans 1: The average rain fall in temperate deciduous forest is 750mm to 150mm/annum.

Question # 8

Differentiate between limnetic zone and profundal zone.

Ans 1: Limentic zone: In this zone adequate or enough light penetrates to support photosynthesis.In this zone mainly cyanobacteria,protozoa,small crustaceans and fishes are present.
Ans 2: Profundal zone: In this zone light is insufficient to support photosynthesis.This area is mainly nourished by detritus that fall from littoral and limnetic zone.Here mostly decomposers and detritivores like snail,certain insect larvae,bacteria,fungi and fish inhabit.

Question # 9

Give the location of desert biomes. Write the name of desert in western and southern Punjab.

Ans 1: This is located in western Punjab while Cholistan is located in Southern Punjab.

Question # 10

How animals and plants conserve water in terrestrial environment?

Ans 1: Plants conserve their water by following methods
Ans 2: a) They have water storing tissues
b) They have reduced leaves or their leaves are modified in to spines to reduce water loss.
c) They have thick cuticle
d) They have sunken stomata.

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12 Class Fsc Part 2 Short Questions Online Preparation Biology

Online Short Questions For Chapter 12 "12th Class Biology Chapter 26 Short Questions Preparation "

Biology - 12th Class Biology Chapter 26 Short Questions Preparation

What is the effect of human impact on Tundra Ecosystem?

Differentiate between alpine and boreal forests.

Write two adaptations for terrestrial ecosystem.

Characterize profundal zone of fresh water lakes.

What is the difference between savanna and prairies?

Write soil conditions of Grassland Ecosystem.

What is average rainfall in temperate deciduous forests?

Differentiate between limnetic zone and profundal zone.

Give the location of desert biomes. Write the name of desert in western and southern Punjab.

How animals and plants conserve water in terrestrial environment?

Prepare Complete Set Wise Questions For Chapter 12 "12th Class Biology Chapter 26 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

12th Class Biology Chapter 26 Short Questions Preparation - Set 1

What is the effect of human impact on Tundra Ecosystem?

Differentiate between alpine and boreal forests.

Write two adaptations for terrestrial ecosystem.

Characterize profundal zone of fresh water lakes.

What is the difference between savanna and prairies?

Write soil conditions of Grassland Ecosystem.

What is average rainfall in temperate deciduous forests?

Differentiate between limnetic zone and profundal zone.

Give the location of desert biomes. Write the name of desert in western and southern Punjab.

How animals and plants conserve water in terrestrial environment?

12th Class Biology Chapter 26 Short Questions Preparation - Set 2

What is climate?And also give its role.

What are planktons?Give their two types.

Give the location of desert biomes. Write the name of desert in western and southern Punjab.

Give productivity in sub humid tropical grass land.

Compare phytoplanktons with zooplanktons.

Name four common features to aquatic ecosystem.

What is Taiga?

What is algal bloom?

Write the rate of primary production of temperate and sub humid tropical grassland.

Differentiate between alpine and boreal forests.

12th Class Biology Chapter 26 Short Questions Preparation - Set 3

What is the difference between savanna and prairies?

Compare phytoplanktons with zooplanktons.

What is composition of air in terrestrial ecosystem?

Differentiate between altitude and latitude.

What are graminoids,in which biome they exist?

What is algal bloom?

Enlist some dominant plants that occur in temperate deciduous forest.

Define productivity of an ecosystem.

Give four name of major terrestrial ecosystem in Pakistan..

Give the location of desert biomes. Write the name of desert in western and southern Punjab.

12th Class Biology Chapter 26 Short Questions Preparation - Set 4

Write soil conditions of Grassland Ecosystem.

Write two adaptations for terrestrial ecosystem.

Give four name of major terrestrial ecosystem in Pakistan..

What is average rainfall in temperate deciduous forests?

What is the effect of human impacts on desert ecosystem?

Define temperate deciduous forest.Mention various such forests in Pakistan.

write human impact on coniferous forests and boreal forests.

Write major ecosystem in Pakistan. OR Enlist major ecosystem in Pakistan.

How the productivity of an aquatic ecosystem can be determined?

What is composition of air in terrestrial ecosystem?

12th Class Biology Chapter 26 Short Questions

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