Practice Pakistan's most useful MCQs for competitive exams

Five kingdom classification was proposed by_____________?

• (A)  Carlous Linnaeus
• (B)  E-Chatton
• (C)  Robert Whittaker
• (D)  Lynn Margulis and Karlene Schwartz

Answer

Submitted By :Ali Uppal

In most ecosystems the greatest amount of energy flows through the____________?

• (A)  Secondary consumers
• (B)  Herbivores
• (C)  Carnivores
• (D)  Decomposers

Answer

Submitted By :Ali Uppal

DNA or RNA of viruses is enclosed in _______________ coat?

• (A)  Protein
• (B)  Carbohydrate
• (C)  Lipid
• (D)  DNA

Answer

Submitted By :Ali Uppal

All of the following are involved in nitrification except

• (A)  Nitrobacter
• (B)  Nitrosomonas
• (C)  Rhizohium
• (D)  All of these

Answer

Submitted By :Ali Uppal

Which of the following organisms have Chitin as a major structural component of their cell wall________________?

• (A)  Prokaryotae
• (B)  Protoctista
• (C)  Plantae
• (D)  Fungi

Answer

Submitted By :Ali Uppal

What is the characteristic feature of consumers?

• (A)  Autotroph
• (B)  Heterotroph
• (C)  Parasite
• (D)  Saprophyte

Answer

Submitted By :Ali Uppal

So far over _____________ number of species of animals are known?

• (A)  million
• (B)  1 million
• (C)  1
• (D)  2 million

Answer

Submitted By :Ali Uppal

The greatest diversity of animals in the lake is found in which one of the following zones?

• (A)  Limmnetic zone
• (B)  Littoral zone
• (C)  Profundal zone
• (D)  None of these

Answer

Submitted By :Ali Uppal

The word which E-Chatton suggested for bacteria and blue green algae was_____________?

• (A)  Autotrophs
• (B)  Heterotrophs
• (C)  Pro-cariotique
• (D)  Eu-cariotique

Answer

Submitted By :Ali Uppal

Scurvy and beri – beri and caused by the deficiency of___________?

• (A)  Vitamin B and C
• (B)  Vitamin B and D
• (C)  Vitamin C and B
• (D)  Vitamin A and B

Answer

Submitted By :Ali Uppal