1. Which of the following is not a basic need of an orchid plant?
A) Air
B) Water
C) Food
D) Sunlight
2. Which plants reproduce by the same method?
I. Tapioca plant
II. Bamboo plant
III. Water lily plant
IV. Rose plant
A) I and II
B) II and III
C) I and IV
D) II and IV
3) Which of the following is not an example of stimuli that humans respond to?
A) Pull hand away when touch a hot object.
B) Cover ears when there is a loud sound.
C) Shield our eyes from bright light.
D) Having lunch.
4) How arctic foxes adapt to their habitat?
A) Migration
B) Hibernation
C) Have a hump
D) Have thick fur
5) Which of the following plants produce poisonous substances?
A) Cactus plant and papaya tree
B) Rubber tree and jackfruit tree
C) Mushroom and pong-pong tree
D) Bougainvillea and mimosa plant
6) Which of the body part will be destroyed if we smoke?
A) Skin
B) Eyes
C) Ears
D) Lungs
7) Which of the following is not the basic need of plants?
A) A mango
B) Sunlight
C) Water
D) Air
8) Plant W and plant X shed their leaves when the soil dries up during the drought （旱灾）
A）Aloe Vera and cactus
B) Rubber tree and acacia plant
C) Apple tree and grape plant
D) Balsam plant and chili plant
9) Which of the following is not the main type of sensory organ cells of the tongue?
A) Sweet
B) Bitter
C) Spicy
D) Sour
10) Why do humans carry out defecation?
A) To get rid the waste products
B) To get energy
C) To regulate the body temperature
D) To respond to external stimuli
11) Which of the following plants cannot protect itself from strong wind?
A) Mangrove tree
B) Flame of the forest
C) Conifer tree
D) Bougainvillea tree
12) A Coral reef protects all the animals below. except
A) Shrimp
B) Clown fish
C）Mole
D）Crab
13) Why the plants need water?
I) Water carries nutrients and mineral salt
II）Water maintain the plants temperature
III) Water keeps the plant cells turgid
IV) Water supplies oxygen to the plants
A) I and II
B) I, II and III
C) I, II and IV
D) I, II, III and IV
14) The begonia and African violet can grow from
A) suckers
B) leaves
C) Stems
D) Seeds
15) How the rubber tree to reduce the loss of water?
A) The leaves drop during a hot day
B) The leaves have hair on them
C) The upper leaf surfaces are waxy and waterproof
D) The leaves curl up during the hot day
