Which of the following structures are visible in the cell of a plant during mitosis?

A. Centrioles, chromatids and nucleolus

B. Homologous chromosomes, nuclear membrane and spindle fibres

C. cell wall, centrioles and chromatids

D. Chromosomes, nuclear membrane and centromere

Display is a phenomenon which occurs when an animal is

A. ready for mating

B. fighting to defend itself

C. approaching puberty

D. chasing away an intruder

The advantages of sexual reproduction include the following except

A. it allows the formation of new species

B. it allows production of desirable traits

C. it permits variation of individuals

D. it provides means for the variation of chromosome number from generation to generation.

Which of the following groups contains a non-supporting structure in animals?

A. Cartilage, bone and pseudopodia

B. Pellicle, chitin and bone

C. Humerus, ribs and cartilage

D. Femur, pellicle and chitin

Which of the following statements is true about blood groupings?

A. Group AB can donate blood to all other groups

B. Group 0 are universal recipients.

C. Group A has A antigen in its plasma

D. Group O has no antigen.

Which of the following is not a constituent of blood plasma?

A. Proteins

B. Mineral salts

C. Water

D. Platelets

The process by which plants convey food material to different parts of the body is called

A. nutrition

B. absorption

C. circulation

D. translocation

Which part of the gill of fish is involved in gaseous exchange?

A. Gill slits

B. Gill bars

C. Gill covers

D. Gill filaments

Which of the following is not a product of fermentation of glucose?

A. Energy

B. Alcohol

C. Lactic acid

D. Carbon dioxide

Which of the following pairs of structures does not perform similar functions?

A. Lungs and spiracles

B. Root hair and mammalian hair

C. Feathers and scales

D. Contractile vacuole and kidney