21.

Which one of the following is a co-curricular activity in Science teaching?

• Black Board

• Science Fairs

• Text-book

• Audio-visual Aids

Which of the following is an Audio Aids?

• OHP

• Epidiascope

• Gramophone

• Magic Lantern

The main purpose of Evaluation is

• to set question paper only

• to know learner's performance and bring improvement

• to maintain discipline

• to conduct examination only

Whose last step is remedial teaching?

• Inquiry model

• Interpretive teaching

• Diagnostic teaching

• None of the above

Which of the following body part of the plant is haploid?

• Gamete

• Flower

• Ovary

• Anther

Which of the following bacteria is beneficial for mankind?

• Streptococcus

• Salmonella

• Penicillium

• All of these

Gastric juice contains

• Pepsin, Lipase, Renin

• Trypsin, Lipase, Renin

• Trypsin, Pepsin, Renin

• Pepsin, Trypsin, Lipase

Which of the following is a micronutrient for plants?

• Sulphur

• Manganese

• Magnesium

• Phosphorus

Which cells synthesize and secrete testicular hormones (androgens) in a man?

• Sertoli cells

• Mucous cells

• Spermatogonia

• Leydig cells

The approximate temperature of the body of a healthy person is

• 37° C

• 37 K

• 37° F

• 37° R