Subject

Biology

Class

NEET Class 12

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

21.

Animals of class-Mammalia have

  • Seven cervical vertebrae

  • Seven cranial nerve

  • Single ventricular chamber

  • Fourteen cervical vertebrae


Advertisement

22.

The basic unit of classification is

  • Species

  • Genus

  • Family

  • Phylum


A.

Species

The basic unit of classification is species. It is the lowest category of classification. It is a group of closely related individuals with similar morphological, anatomical, biochemical and cytological characters. It is a group of naturally interbreeding population with ability to produce fertile offsprings. Individuals of a species share a common gene pool. Species is reproductively isolated, thus genetically closed system. Species has the real existence in nature. The term 'species was given by John Ray, an English naturalist.


Advertisement
23.

One animal that does not perform locomotion is

  • Sycon

  • Nereis

  • Sepia

  • Euglena


24.

The phrase "Omnis cellula e cellula' was given by

  • Virchow

  • Pasteur

  • Schleiden

  • Brown


Advertisement
25.

Apoenzyme is

  • Protein

  • Carbohydrate

  • Vitamin

  • Amino acid


26.

Glycogenolysis involves

  • Conversion of sugar into glycogen

  • Oxidation of Sugar

  • Conversion of glycogen into sugar

  • Conversion of glycogen into fat


27.

Nucleic acid is absent in

  • Virus

  • Viroid

  • Prion

  • Mycoplasma


28.

In most fungi, cell wall is chiefly made of

  • Cellulose

  • Chitin

  • Protein

  • Lipid


Advertisement
29.

Heterocysts are present in

  • Riccia

  • Ulothrix

  • Albugo

  • Nostoc


30.

In Ruscus, the stem is a

  • Phyllode

  • Cladode

  • Offset

  • Sucker


Advertisement