Free MCQs & Online Quiz Practice for Exams

Q: A flatworm cut into three pieces regenerated into new worms. The animal is:

A) Liver fluke

B) Tape worm

C) Planaria

D) Hydra

Q: Group of vertebrates in which placenta is formed:

A) Fishes

B) Aves

C) Amphibia

D) Mammalia

Q: Organs of excretion in annelids are:

A) Flame cells

B) Nephridia

C) Malpighian tubules

D) Kidneys

Q: Members of the order 'perissodactyle' are also named as:

A) Ungulates

B) Hoofed mammals

C) Eutheria

D) All of the above

Q: Acoelomates are characterized by:

A) The absence of brain

B) The absence of mesoderm

C) A solid body without a cavity surrounding internal organs

D) A coelom not completely lined with mesoderm

Q: Which characteristic is most responsible for the great diversification of insects on land?

A) Antenna

B) Antenna

C) Bilateral symmetry

D) Exoskeleton

Q: Mammals and living birds share all EXCEPT:

A) Endothermy

B) Descent from common amniotic ancestor

C) A dorsal hollow nerve cord

D) An archosaur common ancestor

Q: Archaeopteryx shows features of:

A) Reptiles and mammals

B) Reptiles and amphibians

C) Reptiles and aves

D) Aves and mammals

Q: The thick walled dead cells like tracheid and vessels are included in:

A) Parenchyma

B) Sclerenchyma

C) Collenchyma

D) Mesenchyma

Q: The increase in thickness of the plant due to the activity of cambium is called:

A) Primary growth

B) Secondary growth

C) Tertiary growth

D) Stunted growth

Q: The movement restricted to bifacial organs like the leaves and petals of flower is the:

A) Tactic movement

B) Nastic movement

C) Tropic movement

D) Chemotactic movement

Q: In plants, regions of continuous growth are made up of:

A) Dermal tissue

B) Vascular tissue

C) Meristematic tissue

D) Permanent tissue

Q: Chlorosis is:

A) The uptake of the micronutrient chloride by a plant

B) The formation of chlorophyll within the thylakoid membranes

C) Yellowing leaves due to decreased chlorophyll production

D) A contamination of glassware in hydroponic culture

Q: Carnivorous plants digest animals to supplement supply of:

A) Carbohydrates

B) Lipids and steroids

C) Nitrites

D) Water

Q: All of the following are elements that plants need in very small amounts (micronutrients) EXCEPT:

A) Hydrogen

B) Iron

C) Chlorine

D) Copper

Q: The tissue most likely to provide flexible support is the:

A) Epidermis

B) Sclerenchyma

C) Parenchyma

D) Collenchyma

Q: Fibres like hemp and flax are made up of:

A) Epidermis

B) Sclerenchyma

C) Parenchyma

D) Collenchyma

Q: The primary growth of a plant is due to the action of the:

A) Lateral meristem

B) Vascular cambium

C) Apical meristem

D) Cork cambium

Q: Which bonds are responsible for the cohesion of water molecules?

A) Ionic

B) Hydrogen

C) Non polar covalent

D) Polar covalent

Q: In a sugar sink, such as a taproot, sugar is converted into:

A) Fatty acid

B) Proteins

C) Glycogen

D) Starch