Which one of the following is an indicator of air pollution? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Which one of the following is an indicator of air pollution? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens
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(4) Lichens Explanation: Lichens are an indicator of air pollution.
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Which one of the following is an indicator of air pollution ? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Description : Which one of the following is an indicator of air pollution ? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Last Answer : Lichens

Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Description : Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Last Answer : (4) Lichens Explanation: Lichens are used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere. If air is very badly polluted with sulphur dioxide there may be no ... may be found. If the air is clean, shrub-by, hairy and leafy lichens become abundant.

Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Description : Which is used as an Air pollution indicator? (1) Algae (2) Fungi (3) Bacteria (4) Lichens

Last Answer : Lichens

Read the following five statements (A to E) and select the option with all correct statements. A. Mosses and lichens are the first organisms to colonise a bare rock. B. Selaginella is a homosporous pteridophyte. C. Coralloid roots in Cycas have VAM. D. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. E. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte. (a) A, D and E (b) B, C and E (c) A, C and D (d) B, C and D

Description : Read the following five statements (A to E) and select the option with all correct statements. A. Mosses and lichens are the first organisms to colonise a bare rock. B. Selaginella is a homosporous pteridophyte. C. Coralloid roots in Cycas ... D and E (b) B, C and E (c) A, C and D (d) B, C and D

Last Answer : (a) A, D and E

Chlorophyll containing autotrophic thallophytes is called as – (1) Algae (2) Lichens (3) Fung (4) Bryophytes

Description : Chlorophyll containing autotrophic thallophytes is called as – (1) Algae (2) Lichens (3) Fung (4) Bryophytes

Last Answer : (1) Algae Explanation: Algae are chlorophyll (green pigment) containing thallophytes. They prepare their own food and are thus autotrophic in their mode of nutrition.

Chlorophyll containing autotrophic thallophytes is called as (1) Algae (2) Lichens (3) Fung (4) Bryophytes

Description : Chlorophyll containing autotrophic thallophytes is called as (1) Algae (2) Lichens (3) Fung (4) Bryophytes

Last Answer : Algae

Organisms which are indicator of SO2 pollution of air (a) mosses (b) lichens (c) mushrooms (d) puffballs.

Description : Organisms which are indicator of SO2 pollution of air (a) mosses (b) lichens (c) mushrooms (d) puffballs.

Last Answer : (b) lichens

Which of the following are most suitable indicators of SO2 pollution in the environment? (a) Algae (b) Fungi (c) Lichens (d) Conifers

Description : Which of the following are most suitable indicators of SO2 pollution in the environment? (a) Algae (b) Fungi (c) Lichens (d) Conifers

Last Answer : (c) Lichens

Lichens indicate SO2 pollution because they (a) show association between algae and fungi (b) grow faster than others (c) are sensitive to SO2 (d) flourish in SO2 rich environment.

Description : Lichens indicate SO2 pollution because they (a) show association between algae and fungi (b) grow faster than others (c) are sensitive to SO2 (d) flourish in SO2 rich environment.

Last Answer : (c) are sensitive to SO2

How do lichens indicate air pollution? -Biology

Description : How do lichens indicate air pollution? -Biology

Last Answer : answer:

How do lichens indicate air pollution? -Biology

Description : How do lichens indicate air pollution? -Biology

Last Answer : answer:

$ Formation of motile gametes occurs in Red Algae. ! Motile gametes in Cycas are muticiliated.

Description : $ Formation of motile gametes occurs in Red Algae. ! Motile gametes in Cycas are muticiliated.

Last Answer : $ Formation of motile gametes occurs in Red Algae. ! Motile gametes in Cycas are muticiliated. A. If both ... is wrong D. If both As and R are wrong.

Which one of the following statements about Cycas is incorrect? (a) It has circinate vernation. (b) Its xylem is mainly composed of xylem vessel. (c) Its roots contain some blue-green algae. (d) It does not have a well organized female flower.

Description : Which one of the following statements about Cycas is incorrect? (a) It has circinate vernation. (b) Its xylem is mainly composed of xylem vessel. (c) Its roots contain some blue-green algae. (d) It does not have a well organized female flower.

Last Answer : (b) Its xylem is mainly composed of xylem vessel.

Role of algae in lichens. -Biology

Description : Role of algae in lichens. -Biology

Last Answer : answer:

Which of the following represent maximum number of species among global biodiversity? (a) Fungi (b) Mosses and Ferns (c) Algae (d) Lichens

Description : Which of the following represent maximum number of species among global biodiversity? (a) Fungi (b) Mosses and Ferns (c) Algae (d) Lichens

Last Answer : (a) Fungi

Which of the following would appear as the pioneer organisms on bare rocks? (a) Mosses (b) Green algae (c) Lichens (d) Liverworts

Description : Which of the following would appear as the pioneer organisms on bare rocks? (a) Mosses (b) Green algae (c) Lichens (d) Liverworts

Last Answer : (c) Lichens

Most of the lichens consist of (a) green algae and ascomycetes (b) brown algae and higher plant (c) blue green algae and basidiomycetes (d) red algae and ascomycetes.

Description : Most of the lichens consist of (a) green algae and ascomycetes (b) brown algae and higher plant (c) blue green algae and basidiomycetes (d) red algae and ascomycetes.

Last Answer : (a) green algae and ascomycetes

Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. Mycorrhiza (iv) Symbiotic association of algae and fungi Choose the correct answer from the options given below. (A) (B) (C) (D) (a) (ii) (iii) (iv) (i) (b) (i) (ii) (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Description : Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. ... (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Last Answer : (a) (ii) (iii) (iv) (i)

The pioneers of succession on terrestrial habitats are a. Higher plants b. Lichens c. Mosses d. Algae

Description : The pioneers of succession on terrestrial habitats are a. Higher plants b. Lichens c. Mosses d. Algae

Last Answer : b. Lichens

95. The highest number of species in the world is represented by (1) Lichens (2) Fungi (3) Mosses (4) Algae

Description : 95. The highest number of species in the world is represented by (1) Lichens (2) Fungi (3) Mosses (4) Algae

Last Answer : Algae

Phycology is the study of (1) Bacteria (2) Algae (3) Fungi (4) Lichens

Description : Phycology is the study of (1) Bacteria (2) Algae (3) Fungi (4) Lichens

Last Answer : Algae

Similarities between the bryophytes and the algae? -Biology

Description : Similarities between the bryophytes and the algae? -Biology

Last Answer : answer:

Difference between bryophytes and algae. -Biology

Description : Difference between bryophytes and algae. -Biology

Last Answer : answer:

Assertion: Several organisms belonging to monera,fungi,algae and bryophytes produces gametes by mitosis. Reason: the plant body of the monera, fungi,a

Description : Assertion: Several organisms belonging to monera,fungi,algae and bryophytes produces gametes by mitosis. Reason: the plant body of the monera, fungi,a

Last Answer : Assertion: Several organisms belonging to monera,fungi,algae and bryophytes produces gametes by mitosis. ... , fungi,algae and bryophytes is haploid.

Sporocarp is a reproductive structure of (a) Some algae (b) Some aquatic ferns (c) Angiosperms having spores (d) Bryophytes

Description : Sporocarp is a reproductive structure of (a) Some algae (b) Some aquatic ferns (c) Angiosperms having spores (d) Bryophytes

Last Answer : Ans. ((b))

Lichen is considered to be a symbiotic association of two living organisms. Which organisms are involved in it? (a) Algae and bacteria (b) Algae and fungi (c) Algae and bryophytes (d) Fungi and bryophytes

Description : Lichen is considered to be a symbiotic association of two living organisms. Which organisms are involved in it? (a) Algae and bacteria (b) Algae and fungi (c) Algae and bryophytes (d) Fungi and bryophytes

Last Answer : Ans:(b)

The first photosynthetic oxygen liberating organisms to appear on earth were (1) Cyanobacteria (2) Bryophytes (3) Green algae (4) Bacteria

Description : The first photosynthetic oxygen liberating organisms to appear on earth were (1) Cyanobacteria (2) Bryophytes (3) Green algae (4) Bacteria

Last Answer : (1) Cyanobacteria Explanation: Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.

In which of the following would you place the plants having vascular tissue lacking seeds? (a) Pteridophytes (b) Gymnosperms (c) Algae (d) Bryophytes

Description : In which of the following would you place the plants having vascular tissue lacking seeds? (a) Pteridophytes (b) Gymnosperms (c) Algae (d) Bryophytes

Last Answer : (a) Pteridophytes

Bryophytes can be separated from algae, because they (a) possess archegonia (b) contain chloroplast (c) are thalloid forms (d) have no conducting tissue

Description : Bryophytes can be separated from algae, because they (a) possess archegonia (b) contain chloroplast (c) are thalloid forms (d) have no conducting tissue

Last Answer : (a) possess archegonia

Absorptive heterotrophic nutrition is exhibited by (a) algae (b) fungi (c) bryophytes (d) pteridophytes.

Description : Absorptive heterotrophic nutrition is exhibited by (a) algae (b) fungi (c) bryophytes (d) pteridophytes.

Last Answer : (b) fungi

BGA (blue green algae) are included in which of the following groups? (a) Bryophytes (b) Prokaryotes (c) Protista (d) Fungi

Description : BGA (blue green algae) are included in which of the following groups? (a) Bryophytes (b) Prokaryotes (c) Protista (d) Fungi

Last Answer : (b) Prokaryotes

Secondary growth occurs in a. Trees b. Algae c. Fungi d. Bryophytes

Description : Secondary growth occurs in a. Trees b. Algae c. Fungi d. Bryophytes

Last Answer : a. Trees

Use of lichens in case of pollution is

Description : Use of lichens in case of pollution is

Last Answer : Use of lichens in case of pollution is A. Treatement of pollutants water B. Bioindicators ... pollution D. Lichens have no relatation with pollution

Lichens indicate pollution by

Description : Lichens indicate pollution by

Last Answer : Lichens indicate pollution by A. `O_(3)` B. `SO_(2)` C. `NO_(2)` D. CO.

Why lichens are considered as pollution indicators?

Description : Why lichens are considered as pollution indicators?

Last Answer : Why lichens are considered as pollution indicators?

Which of the following is the use of lichens in case of pollution? (a) They promote pollution. (b) Lichens are not related with pollution. (c) They treat the polluted water. (d) They act as bioindicators of pollutions.

Description : Which of the following is the use of lichens in case of pollution? (a) They promote pollution. (b) Lichens are not related with pollution. (c) They treat the polluted water. (d) They act as bioindicators of pollutions.

Last Answer : (d) They act as bioindicators of pollutions.

Which one of the following statement about lichens is wrong? (a) These grow very rapidly (2 cm per day). (b) They show fungal and algal symbiotic relationships. (c) Some of its species are eaten by reindeers. (d) These are pollution indicators.

Description : Which one of the following statement about lichens is wrong? (a) These grow very rapidly (2 cm per day). (b) They show fungal and algal symbiotic relationships. (c) Some of its species are eaten by reindeers. (d) These are pollution indicators.

Last Answer : (a) These grow very rapidly (2 cm per day).

Lichens indicate pollution by a) O3 b) SO2 c) NO2 d) CO.

Description : Lichens indicate pollution by a) O3 b) SO2 c) NO2 d) CO.

Last Answer : b) SO2

An organism which can monitor air pollution is – (1) Bacteria (2) Lichen (3) Algae (4) Fungi

Description : An organism which can monitor air pollution is – (1) Bacteria (2) Lichen (3) Algae (4) Fungi

Last Answer : (2) Lichen Explanation: Lichens can be used as air pollution indicators, especially of the concentration of sulfur dioxide in the atmosphere. Air pollutants dissolved in rainwater, especially sulfur ... lichens, and prevent them from growing. This makes lichens natural indicators of air pollution.

An organism which can monitor air pollution is (1) Bacteria (2) Lichen (3) Algae (4) Fungi

Description : An organism which can monitor air pollution is (1) Bacteria (2) Lichen (3) Algae (4) Fungi

Last Answer : Lichen

Which of the following is used as an atmospheric pollution indicator

Description : Which of the following is used as an atmospheric pollution indicator

Last Answer : Which of the following is used as an atmospheric pollution indicator A. Lepidoptera B. Lichens C. Lycopersicon D. Lycopodium

Which is indicator of industrial pollution

Description : Which is indicator of industrial pollution

Last Answer : Which is indicator of industrial pollution A. Biston belularia B. Chamaeleon C. Lichen D. Begnal tiger.

Pollution indicator is

Description : Pollution indicator is

Last Answer : Pollution indicator is A. Agrobacterium B. Lichen C. Pteridium D. Both A and B

Pollution indicator plants

Description : Pollution indicator plants

Last Answer : Pollution indicator plants A. Are resistant to pollution B. Can purify the atmosphere C. Are very ... to pollutants D. Can indicate onset of rains.

Common indicator organism of water pollution is

Description : Common indicator organism of water pollution is

Last Answer : Common indicator organism of water pollution is A. Escherichia coli B. Chloera vibrio C. Salmonella typhi D. Entamonella histolytica.

The common indicator organism of water pollution is

Description : The common indicator organism of water pollution is

Last Answer : The common indicator organism of water pollution is A. Entamoeba histolytica B. Lemna paucicostata C. Eichhornia crassipes D. Escherichia coli

Which plant act as pollution indicator?

Description : Which plant act as pollution indicator?

Last Answer : Lichens

The bacterium Bacillus thuringiensis is widely used in contemporary biology as (a) insecticide (b) agent for production of dairy products (c) source of industrial enzyme (d) indicator of water pollution

Description : The bacterium Bacillus thuringiensis is widely used in contemporary biology as (a) insecticide (b) agent for production of dairy products (c) source of industrial enzyme (d) indicator of water pollution

Last Answer : (a) insecticide

Which of the following parameters is not used as a pollution indicator in water? (A) Total dissolved solids (B) Coliform count (C) Dissolved oxygen (D) Density

Description : Which of the following parameters is not used as a pollution indicator in water? (A) Total dissolved solids (B) Coliform count (C) Dissolved oxygen (D) Density

Last Answer : Answer: D

The presence of 20 or more genera of algae in a water body is an indication of high organic pollution. It is

Description : The presence of 20 or more genera of algae in a water body is an indication of high organic pollution. It is

Last Answer : The presence of 20 or more genera of algae in a water body is an indication of high organic ... index C. Pollution index D. Algal genus index