$ Anarobic respiration occurs in the aquatic organisms. ! Aquatic organisms are never autotrophic.

$ Anarobic respiration occurs in the aquatic organisms. ! Aquatic organisms are never autotrophic.
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$ Anarobic respiration occurs in the aquatic organisms. ! Aquatic organisms are never autotrophic. A. If both ... D. If both As and R are wrong.
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$ Viruses are at a border line position between living and non living. ! Phytoplanktons are those living organisms which are aquatic.

Description : $ Viruses are at a border line position between living and non living. ! Phytoplanktons are those living organisms which are aquatic.

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Following are the two statements regarding the origin of life. (A) The earliest organisms that appeared on the earth were non-green and presumably anaerobes. (B) The first autotrophic organisms were the chemoautotrophs that never released oxygen. Of the above statements which one of the following options is correct? (a) Both (A) and (B) are correct. (b) Both (A) and (B) are false. (c) (A) is correct but (B) is false. (d) (B) is correct but (A) is false.

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$ Fungi may be sometimes autotrophic. ! Stored food material in Fungi is starch.

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$ Green Algae are considered to be the ancestors of land plants. ! Algae differ from Fungi due to autotrophic nutrition.

Description : $ Green Algae are considered to be the ancestors of land plants. ! Algae differ from Fungi due to autotrophic nutrition.

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$ Fungi may be heterotrophic or autotrophic. ! Mycelium of Rhizopus has uninucleated cells.

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$ Nitrogen fixing bateria always live in symbiosis. ! Symbiosis occurs between the organisms of the same species.

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$ Amitosis occurs with spindle formation. ! Amitosis occurs during the formation of gametes in diploid organisms.

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Assertion: Anatomy deals with the structure and functions of the organisms. Reason: All the plants are autotrophic.

Description : Assertion: Anatomy deals with the structure and functions of the organisms. Reason: All the plants are autotrophic.

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Last Answer : (d) (i), (ii) and (iv)

What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration ? -Biology

Description : What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration ? -Biology

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How many animals in the given list have gills for respiration ? Earthworm , Frog, Fish, Insects, Reptiles, Aquatic arthropods, Flatworm, Molluscs, Bir

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(a) Draw a diagram of human respiratory system and label the following: (i) part where air is filtered by fine hair and mucus (ii) part which terminates in balloon – like structures (iii) balloon – like structures where exchange of gases takes place. (iv) part which separates chest cavity from abdominal cavity. (b) Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms? -Biology

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Last Answer : (a) (b) Quantity of dissolved oxygen is fairly low in water as compared to the amount of oxygen in air. Aquatic organisms therefore have to breath faster than terrestrial organisms to absorb the required amount of oxygen from the water.

The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organisms is - (1) 4 - 6 (2) 2 - 4 (3) 8 - 10 (4) 12 - 16

Description : The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organisms is - (1) 4 - 6 (2) 2 - 4 (3) 8 - 10 (4) 12 - 16

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For the aquatic organisms, the source of food is – (1) Phytoplankton (2) Sea Weed (3) Aqua plankton (4) Zooplankton

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Last Answer : (4) Zooplankton Explanation: Zooplankton are a type of heterotrophic plankton that range from microscopic organisms to large species, such as jellyfish.

A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen (c) drying of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.

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Last Answer : (d) increased population of aquatic food web  organisms.

A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of nutrients (d) mortality of fish due to lack of oxygen.

Description : A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due  to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of  nutrients (d) mortality of fish due to lack of oxygen.

Last Answer : (d) mortality of fish due to lack of oxygen.

A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen (c) drying of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.

Description : A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen (c) drying of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.

Last Answer : (b) death of fish due to lack of oxygen

A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of nutrients (d) mortality of fish due to lack of oxygen.

Description : A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of nutrients (d) mortality of fish due to lack of oxygen.

Last Answer : (d) mortality of fish due to lack of oxygen.

Benthic organisms are affected the most by (a) light reaching the forest floor (b) surface turbulence of water (c) sediment characteristics of aquatic ecosystems (d) water-holding capacity of soil

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The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organisms is : (1) 4 – 6 (2) 2 – 4 (3) 8 – 10 (4) 12 – 16

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Last Answer :  4 – 6

$ Respiration is an endogenous reaction. ! Anaeroboic respiration releases more energy than aerobic respiration.

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$ Respiration releases energy in the form of ATP ! Respiration in the presence of `O_(2)` is called Aerobic respiration.

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Aquatic animals in which fertilisation occurs in water are said to be a) viviparous without external fertilisation b) oviparous with external fertilisation c) viviparous with internal fertilisation d) oviparous with internal fertilisation

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$ When the total number of chromosomes is not the exact multiple of the haploid number of an organisms, the phenomenon is called euploidy. ! Euploidy

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$ Phagotrophs take solid nutrition. ! Photosynthetic organisms are called Producers.

Description : $ Phagotrophs take solid nutrition. ! Photosynthetic organisms are called Producers.

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$ The first photosynthetic organisms which show oxygenic photosynthesis were cyanobacteria. ! Photosynthesis by Eubacteria is Anoxygenic.

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$ Morphology deals with the study of external characters of the organisms ! Physiology deals with the study the various functions of a living organism

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$ Exo-biology is a branch of biology. ! It deals with the study of external characters of the living organisms.

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$ The process of synthesis of complex organic molecules from simpler ones, by the living organisms is called Anabolisms. ! Anabolism is always useful

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$ Kingdom Monera includes the unicellular prokaryotic organisms. ! Eukaryotes are the organisms which have a eukaryotic nucleus and double membraned o

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$ The zyhote developes into a multicellular organisms. ! Each cell is totipotent.

Description : $ The zyhote developes into a multicellular organisms. ! Each cell is totipotent.

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$ Unicellular eukaryotes are the simplest organisms. ! Prokaryotes have the mitochondria whereas eukaryotes are without mitochondria.

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$ Euglena is an organisms with a controversial position in classification of living organisms. ! Euglena has parasitic nutrition.

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$ Classification based on the evolutionary relationships among the organisms is called phylogenetic classification. ! According to Binomila Nomenclatu

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$ Ecologically, animals are consumers. ! Living organisms are classified as follows : (i) Producers (ii) Consumers (iii) Decomposers

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$ The oldest microfossils of organisms resemble the modern day cyanobacteria. ! Cyanobacteria have oxygenic photosynthesis.

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$ Louis Pasteur discovered that fermentation is brought about by micro-organisms ! Parasitic becteria bring about fermentation.

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$ Nucleus was discovered by Robert Brown ! Large sized organisms have large sized cells.

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$ living organisms can exist alone ! A population is a group of organisms of entirely different species occupying a particular area.

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$ The entire material world which can be seen and detected with instrument is like microscops and telescope is called universe. ! Living organisms are

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$ Cellular totipotency means that single cell can give rise to a fully grown multicellular organisms ! Meristematic cells are also called "stem cells"

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$ Life on earth originated by interaction of the various chemical substances in the broth of the sea. ! The first organisms were, pherhaps the chemoau

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$ All of the living organisms utilize light energy for their metabolism ! Positive metabolism is called catabolism

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$ Homoestasis is the capacity of a living organisms to maintain its constant internal conditions. Majority of homoestatic processes occur with the hel

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$ DNA contains all the neccesary information and instructions for cell reproduction Reproduction is not essential for the living organisms.

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$ the sum total of anabolic and catabolic activities is called metabolism ! Organisms with positive metabolism remain healthy.

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What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration. -Biology

Description : What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration. -Biology

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What are the differences between aerobic and anaerobic respiration ? Name some organisms that use the anaerobic mode of respiration. -Biology

Description : What are the differences between aerobic and anaerobic respiration ? Name some organisms that use the anaerobic mode of respiration. -Biology

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In Living organisms During respiration which of the following Products are not formed if oxygen is not available? (a) Carbon dioxide + Water (b) Carbon dioxide + Alcohol (c) Lactic acid + Alcohol (d) Carbon dioxide + Lactic Acid

Description : In Living organisms During respiration which of the following Products are not formed if oxygen is not available? (a) Carbon dioxide + Water (b) Carbon dioxide + Alcohol (c) Lactic acid + Alcohol (d) Carbon dioxide + Lactic Acid

Last Answer : Answer: (b) Carbon dioxide + Alcohol