Multiple Choice QuestionsWhich of the following is correct regarding respiration in adult frog
In water- Skin, gills
On land - Skin, buccal cavity
In water- Skin, buccal cavity
On land- Skin, lungs, gills
B.
On land - Skin, buccal cavity
In frog three types of respiration occurs to suit its amphibious mode of life. These are cutaneous, buccopharyngeal and pulmonary respiration. Cutaneous respiration occurs through the thin, moist, highly vascular and naked skin. It takes place in water as well as on land. Buccopharyngeal respiration occurs on land via thin, vascular, moist lining of buccopharyngeal cavity. Pulmonary respiration takes place when the frog is outside the water. It occurs by lungs of adult frog.
One of the world's most poisonous fish toxins is released by
clown fish
eel fish
sword fish
puffer fish
What is common between earthworm and Periplaneta
Both have red coloured blood
Both possess anal styles
Both have malpighian tubules
Both have segmented body
Assertion: Frog can change its colour, according to its surroundings.
Reason: It is a way of mimicry to capture preys
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false
Assertion: Complexity of classification increases from kingdom to species.
Reason: Common characters increase from kingdom to species.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false
In the given table, some organisms are classified into categories. However, there is one exception. Select the option with correctly mentioned exceptional organism.
| Organisms | Category | Exception |
| Penicillium, Aspergillus, Mucor | Fungi | Mucor |
| Organisms | Category | Fungi |
| Cacti, Venus flytrap | Plants | Cacti |
| Organisms | Category | Exception |
| Ascaris, Nereis, Wuchereria | Aschelminthes | Nereis |
| Organisms | Category | Exception |
| Scorpion, Prawn, Anopheles | Arthropoda | Prawn |
Which of the following have porous body and are diploblastic?
Aurelia and Obelia
Adamsia and Euplectella
Leucosolenia and Spongilla
Sycon and Hydra
Which of the following statements is correct
Aspergillus niger is used for producing cyclosporin A.
Activated sludge is digested by aerobic bacteria to produce marsh gas.
Fleming, Chain & Florey were awarded with Nobel Prize for discovering penicillin.
BOD is amount of oxygen produced by bacteria on decomposition.
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