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

Question # 1

Define productivity of an ecosystem.

Ans 1: The productivity of an ecosystem can be defined as it is directly related to the rate of photosynthesis of produces i.e their consumption of carbon dioxide and evolution of oxygen.

Question # 2

Compare phytoplanktons with zooplanktons.

Ans 1: Phytoplanktons: are called drifting plants,it includes photosynthetic protists,bacteria and algae.
Ans 2: Zooplanktons: are called drifting animals such as tiny protozoa and crustaceans.

Question # 3

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 # 4

Name any two zones of fresh water late.

Ans 1: Profundal zone and limnetic zone.

Question # 5

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 # 6

Name three zones in lake ecosystem.

Ans 1: Zone of Lake Ecosystem are.
Ans 2: i Littoral Zone
ii Limnetic zone
iii Profundal zone

Question # 7

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 # 8

Differentiate between climate and weather.

Ans 1: Climate:Refers to over all patterns of weather that prevails from year to year even centuries in a particular region.
Ans 2: Weather:It refers to short term fluctuations in temperature,humidity,cloud cover,wind and precipitation over periods of hours or days.

Question # 9

Describe animal life in profundal zone

Ans 1: Decomposers and detritus feeders such as snails and certain insect larvae,bacteria,fungi and fishes inhibit it.

Question # 10

Describe the animal life of grass land ecosystem.

Ans 1: Animals of deserts are mostly nocturnal (they hide during day and come out during night)they do so to avoid too much heat and water loss.Desert animals include horned lizards,snake and other reptiles.Mammals include kangaroo,rats,Birds include burrowing owl.

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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

Define productivity of an ecosystem.

Compare phytoplanktons with zooplanktons.

Write soil conditions of Grassland Ecosystem.

Name any two zones of fresh water late.

Characterize profundal zone of fresh water lakes.

Name three zones in lake ecosystem.

Differentiate between limnetic zone and profundal zone.

Differentiate between climate and weather.

Describe animal life in profundal zone

Describe the animal life of grass land ecosystem.

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

Define productivity of an ecosystem.

Compare phytoplanktons with zooplanktons.

Write soil conditions of Grassland Ecosystem.

Name any two zones of fresh water late.

Characterize profundal zone of fresh water lakes.

Name three zones in lake ecosystem.

Differentiate between limnetic zone and profundal zone.

Differentiate between climate and weather.

Describe animal life in profundal zone

Describe the animal life of grass land ecosystem.

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

Compare phytoplanktons with zooplanktons.

Give productivity in sub humid tropical grass land.

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

Differentiate between climate and weather.

Give types of organism present in profundal zone.

Give the characteristics of limnetic zone of fresh water ecosystem.

Describe the animal life of grass land ecosystem.

Give location of tundra ecosystem in Pakistan.

Name three zones in lake ecosystem.

What are kinds of coniferous forests and where they located?

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

Write two adaptations for terrestrial ecosystem.

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

Give productivity in sub humid tropical grass land.

Name three zones in lake ecosystem.

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

What is layering in grassland?

Differentiate between altitude and latitude.

Name four common features to aquatic ecosystem.

Give two adaptations for terrestrial ecosystem

What is the effect of human impact on Tundra Ecosystem?

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

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

What is algal bloom?

Name two factors which influence life on land.

Differentiate between alpine and boreal forests.

Give two causes of famine in sahel in Africa.

Differentiate between climate and weather.

Give location of tundra ecosystem in Pakistan.

What is composition of air in terrestrial ecosystem?

What is the effect of human impact on Tundra Ecosystem?

What are planktons?Give their two types.

12th Class Biology Chapter 26 Short Questions

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