The effect of the contraction of the muscles of the diaphram is that
the volume of the thoracic cavity increases
more carbon dioxide is expelled through the nostrils
the rib cage is drawn inwards
the intercostal muscle becomes relaxed
Correct answer is A
No explanation has been provided for this answer.
Which of the following pairs of structures does not perform similar functions?
Lungs and spiracles
Root hair and mammalian hair
Feathers and scales
Contractile vacuole and kidney
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not a product of fermentation of glucose?
Energy
Alcohol
Lactic acid
Carbon dioxide
Correct answer is C
No explanation has been provided for this answer.
Which part of the gill of fish is involved in gaseous exchange?
Gill slits
Gill bars
Gill covers
Gill filaments
Correct answer is D
No explanation has been provided for this answer.
The process by which plants convey food material to different parts of the body is called
nutrition
absorption
circulation
translocation
Correct answer is D
No explanation has been provided for this answer.