1 Which of the followings are the life processes of humans?
I breathing II reproducing III sleep IV respond to stimuli
A I and III only
B II and III only
C I, II and IV only
D I, II, III and IV
2 We need to remove (excrete) waste materials from our bodies because the
waste materials will
A make us weak.
B make us grow tired easilly.
C make us put on weight quickly.
D make us become unhealthy
3 What is meant by excretion ?
A Discharging digested materials.
B Discharging toxic fluid which can be found in the body.
C Discharging the materials that are not needed by the body.
D The removal of waste products in the form of feaces and urine.
4 Which of the following shows the correct grouping of animals based on their reproduction?
Lay eggs Giving birth
A Whale Cow
B Squirrel Tiger
C Fish Cat
D Chicken Owl
5 Which of the following are waste products of humans ?I Carbon dioxide
A I and II only
B I and III only
C I, II and III only
D I, II and IV only
6 When human defecate, it produced