The branch of Biology that deals with the principles of classification of organisms is known as

A. biological index

B. nomenclature

C. taxonomy

D. ecology

Which of the following structures is a tissue

A. Vessel element

B. Blood

C. Sieve tube element

D. Erythrocyte

Which of the following cells are not regarded as specialized?

A. Sperm cells

B. Root up cells

C. Muscle cells

D. somatic cells

Which of the following pairs of cells carry out the same function?

A. Check cell and red blood cell

B. Spermatozoan and ovum

C. Palisade cell and epidermal cell

D. Root tip cell and guard cell

If Amoeba is placed in a salt solution. the contractile vacuoles would

A. be bursting more frequently

B. be more numerous

C. be formed less frequently

D. grow bigger before they burst

In which of the following habitats is Paramecium no found

A. Pond

B. Aquarium

C. Lake

D. Puddle

The following processes are involved in water movement in the endodermis except

A. osmosis

B. vacuolar pathway

C. diffusion

D. active transport

Cells that utilise a lot of energy are characterized by the presence of a large number of

A. vacuoles

B. mitochondria

C. endoplasmic reticulum

D. ribosomes

The part labelled II in the diagram is

A. centriole

B. chloroplast

C. chromatid

D. tonoplast

The part labelled I is called the

A. nucleolus

B. centromere

C. centriole

D. spindle

Secondary growth is brought about by the activities of the

A. phellogen and phelloderm

B. phellogen and procambium.

C. vascular cambium and phelloderm

D. vascular cambium and phellogen

A monocot root IS different from a dicot root by having

A. endodermis

B. cambium

C. wide pith

D. root hair.