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Level 3 Test: Biological Classification - NEET MCQ


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15 Questions MCQ Test - Level 3 Test: Biological Classification

Level 3 Test: Biological Classification for NEET 2024 is part of NEET preparation. The Level 3 Test: Biological Classification questions and answers have been prepared according to the NEET exam syllabus.The Level 3 Test: Biological Classification MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Level 3 Test: Biological Classification below.
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Level 3 Test: Biological Classification - Question 1
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Escherichia coli is a bacterium which is a common inhabitant of

Detailed Solution for Level 3 Test: Biological Classification - Question 1

Escherichia coli are Gram-negative, facultative aerobic bacteria. They are common inhabitants of human intestines. These strains of E coli are harmless. They form the part of the normal microbiota of the intestine. They live in symbiotic association. They benefit hosts by producing vitamin K2 and preventing colonization of the intestine with pathogenic bacteria.

Level 3 Test: Biological Classification - Question 2
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Lichens have an actual relationship of

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In lichens, a relationship occurs in which the fungus lives as a dominant organism and algae like a slave, the relationship is known as helotism. It is a form of symbiosis in which one species is forced to perform tasks for another, for their mutual benefit.

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Level 3 Test: Biological Classification - Question 3
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Unicellu larity is characteristic of

Detailed Solution for Level 3 Test: Biological Classification - Question 3

Cyanobacteria (Blue-green algae) may be unicellular, colonial or filamentous. Since cyanobacteria are categorized under Monera, so, Monera is also incorrect. Hence, only option C, i.e., Protista, is correct.

Level 3 Test: Biological Classification - Question 4
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Which one of the following is not a diatom?
Detailed Solution for Level 3 Test: Biological Classification - Question 4
Cell of diatoms is surrounded by a cell wall having two parts or frustules. Frustules make two overlapping halves (the epitheca and the hypotheca). Nostoc is blue-green algae with characteristic peptidoglycan cell wall and heterocyst, a transparent thick-walled empty cell present in intermittent position in BGA filaments. It serves as a site of nitrogen fixation. Option A is correct.

Level 3 Test: Biological Classification - Question 5
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An obligate anaerobe is
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Methane bacteria Obligate anaerobes are organisms which grow in the absence of oxygen. In the presence of oxygen, they cannot survive. The example includes methane-producing bacteria or methanogens. They obtain their energy without the consumption of oxygen. Other examples include Clostridium species.

Level 3 Test: Biological Classification - Question 6
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Open ascocarp is
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Apothecium An open ascocarp is an apothecium. An ascocarp, or ascoma, is the fruiting body (sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and may contain millions of asci, each of which typically contains four to eight ascospores. Ascocarps are most commonly bowl-shaped (apothecia). Still, they may take a spherical (cleistothecia) or flask-like (perithecia) form, while an apothecium is a wide, open saucer-shaped, or cup-shaped fruit body. It is a sessile and fleshy structure of apothecium, chiefly consisting of three parts, namely hymenium.

Level 3 Test: Biological Classification - Question 7
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Cellulose is a major component of the cell wall of
Detailed Solution for Level 3 Test: Biological Classification - Question 7
Pythium is a genus in the class Oomycetes, which are also known as water moulds. Oomycetes are not true fungi, as their cell walls are made of cellulose.

Level 3 Test: Biological Classification - Question 8
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Statement 1: Euglena can be considered as a plant due to the presence of chlorophyll.

Statement 2: Euglena cannot be classified based on two-kingdom systems of classification.
Detailed Solution for Level 3 Test: Biological Classification - Question 8
Some trademark highlights of Euglenoids are as per the following. Euglenoids, (for example, Euglena) are unicellular protists normally found in new water. Rather than cell divider, a protein-rich cell film known as pellicle is available. They bear two flagella on the front end of the body. Most Euglena types have photosynthesizing chloroplasts inside the body of the cell, which empower them to bolster via autotrophy, similar to plants. Notwithstanding, they can likewise take sustenance heterotrophically, similar to creatures.

Level 3 Test: Biological Classification - Question 9
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Red tides in oceans occur due to presence and rapid growth of
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Red tides in oceans occur due to the rapid growth of dinoflagellates, usually considered reddish-brown algae and characterized by pigment peridinin imparts red-brown colour. Great population explosions of dinoflagellates make the water turn reddish and are referred to as red tides which are poisonous and destructive for living organisms due to toxins produced by dinoflagellates.

Level 3 Test: Biological Classification - Question 10
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Assertion: Viruses are not considered the organism

Reason: Viruses are nucleoproteins and lack cell organelle, etc.
Detailed Solution for Level 3 Test: Biological Classification - Question 10
Both Assertion and Reason are correct, and Reason is the correct explanation for Assertion

Level 3 Test: Biological Classification - Question 11
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Which of the following are called amphibians of the plant kingdom?
Detailed Solution for Level 3 Test: Biological Classification - Question 11
Bryophytes are land inhabiting or terrestrial plants. They complete their vegetative phase on land, but water is necessary for their reproductive phase, i.e. for completion of the life cycle. So bryophytes are known as amphibians of the plant kingdom. Thallophytes have a plant body that is not clearly differentiated into root, stem and leaves. They do not have vascular tissues and so are always aquatic. Pteridophytes are the most primitive vascular plants. They have developed vascular tissues, and so they were the first vascular plants on land. Tracheophyte includes all vascular plants - pteridophytes, gymnosperms and angiosperms.

Level 3 Test: Biological Classification - Question 12
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Sexual reproduction in fungi can occur using:
Detailed Solution for Level 3 Test: Biological Classification - Question 12
Important sexual spores in fungi are

Oospore

Ascospore

Basidiospore

Level 3 Test: Biological Classification - Question 13
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Assertion: Plants absorb sulphur in the form of sulphate ions.

Reason: Sulphur bacteria are required for the formation of sulphate.
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Level 3 Test: Biological Classification - Question 14
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The structure(s) found in chlamydomonas but not in amoeba is/are:
Level 3 Test: Biological Classification - Question 15
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Choose the correct answers from the alternatives given. One of the following protists is whirling whips because of the spin produced by two flagella beating in opposing grooves along with their hard-surfaced bodies?
Detailed Solution for Level 3 Test: Biological Classification - Question 15
A whirling whip is a translation of dino-flagellate is nothing but of the spin produced by two flagella beating in opposing grooves along with their hard-surfaced bodies. These microscopically small algae have a thin (cellulose) outer skeleton that can move around with flagella's help (whirling whips).
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