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
B.
If both assertion and reason are true but reason is not the correct explanation of assertion.
Classification involves hierarchy of steps, in which each step represents a rank or category, called taxonomic category or taxon. All taxa together constitute a taxonomic hierarchy as follows:
Species > Genus > Family > Order > Class > Phylum or division > Kingdom.
Most common characters among individual members are found in taxon species. Common characters decrease from species to kingdom and members of a kingdom have least number of common characters. Similarly, complexity of classification decreases from species to kingdom.
Kingdom Animalia is characterised by
direct dependence on autotrophs
indirect dependence on autotrophs
absence of chlorophyll
absence of cell wall.
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 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.
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
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 is a correct match
Frog - External ears
Earthworm - Muscular gizzard, typhlosole
Human - Fat globule, 10 pairs of cranial nerves
Cockroach - Chilopoda
