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Class 9 Exam  >  Class 9 Tests  >  Olympiad Test: Diversity in Living Organisms- 3 - Class 9 MCQ

Olympiad Test: Diversity in Living Organisms- 3 - Class 9 MCQ


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10 Questions MCQ Test - Olympiad Test: Diversity in Living Organisms- 3

Olympiad Test: Diversity in Living Organisms- 3 for Class 9 2024 is part of Class 9 preparation. The Olympiad Test: Diversity in Living Organisms- 3 questions and answers have been prepared according to the Class 9 exam syllabus.The Olympiad Test: Diversity in Living Organisms- 3 MCQs are made for Class 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Diversity in Living Organisms- 3 below.
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Olympiad Test: Diversity in Living Organisms- 3 - Question 1
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Chlorophyll containing, autotrophic thallophytes are called

Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 1
Algae are chlorophyll (green pigment) containing thallophytes. They prepare their own food and are thus autotrophic in their mode of nutrition.
Olympiad Test: Diversity in Living Organisms- 3 - Question 2
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A group of related genera, with still less number of similarities as compared to the genus and species, constitutes

Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 2
Species are the group of organisms who can interbreed. Related species belong to the same genus.

The family comprises several genera ( plural of genus ) with less number of similarities compared to genus or species.

Order and class are further higher taxonomic categories with even fewer characteristics in common.

So, the correct option is 'Family'.

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Olympiad Test: Diversity in Living Organisms- 3 - Question 3
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The body of organisms has chitinous cell wall and is made up of hyphae and mycelium

Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 3
Rhizopus is a genus of saprophytic fungi. The hypha is a long filamentous structure which helps in the vegetative growth. The hypha is multicellular where each cell surrounded by the tubular cell wall and separated by cross walls known as septa. The cell walls are composed of structural polymer known as chitin. It is a long-chain polymer of N-acetylglucosamine.
Olympiad Test: Diversity in Living Organisms- 3 - Question 4
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The compound plants composed of algae and fungi are called
Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 4
Lichens are the symbiotic associations i.e; mutually useful associations between algae and fungi. The algal component is known as phycobiont and the fungal component is known as mycobiont, which are autotrophic and heterotrophic respectively. Algae prepares food for fungi and fungi provide shelter and absorb mineral nutrients and water for its partner.
Olympiad Test: Diversity in Living Organisms- 3 - Question 5
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Homo : generic name :: sapiens : _______
Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 5
Homo sapiens is the binomial nomenclature for the only extant human species. Homo is the human genus, which also includes Neanderthals and many other extinct species of hominid; H. sapiens is the only surviving species of the genus Homo. The binomial name Homo sapiens was coined by Carl Linnaeus.
Olympiad Test: Diversity in Living Organisms- 3 - Question 6
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A group of similar freely inter–breeding organisms constitutes a
Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 6
According to the biological concept of species, a natural population of organisms who resemble each other in morphological and reproductive ways to be able to produce a fertile offspring and interbreed freely is termed as a species.

So, the correct option is 'Species'.

Olympiad Test: Diversity in Living Organisms- 3 - Question 7
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The ability of nitrogen fixation is found in
Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 7
All prokaryotic organism belong to Kingdom Monera. They do not have nucleus or other membrane bound cell organelles, like chloroplast and mitochondria. The nucleus is "pro" or primitive, which is called variously as incipient nucleus, nucleoid, genophore etc. They fix atmospheric nitrogen into biologically useful forms like ammonia with the help of enzyme nitrogenase. Example- Rhizobium, which lives in root nodules of leguminous plants and carries the process of biological nitrogen fixation. Also ribosomes of prokaryotes (70S type) are different from ribosomes of eukaryotes (80S type).
Olympiad Test: Diversity in Living Organisms- 3 - Question 8
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The algal partner of a lichen is called
Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 8
The photosynthetic partner, algae or cyanobacteria, is called the photobiont. The body of a lichens that does not contain reproductive parts of the fungus is called the thallus.
Olympiad Test: Diversity in Living Organisms- 3 - Question 9
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Naked seeds are present in
Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 9
The gymnosperms (gymnos: naked, sperma: seeds) are plants in which the ovules are not enclosed by any ovary wall and remain exposed. The seeds that develop after fertilisation are not covered, i.e., are naked. E.g., Pinus.
Olympiad Test: Diversity in Living Organisms- 3 - Question 10
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Which of the following group of plants is called vascular cryptogams?
Detailed Solution for Olympiad Test: Diversity in Living Organisms- 3 - Question 10
Vascular cryptogam is an old botanical phrase and it refers to those vascular plants that do not make seeds. Thus, cryptogam refers to the production of a separate, usually very small, archegoniate gametophyte. These are well represented in the fossil record.

Thus, vascular cryptogams are pteridophytes.

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