Based on William’s observations, which of the following conclusions is true?
Anonymous Quiz
5%
The animal cell can make its own food.
75%
Both cells contain genetic information.
15%
Oxygen cannot move in and out of the plant cell.
5%
The animal cell cannot carry out any cell activities.
Which of the following statements on the life cycle of the mosquito is true?
Anonymous Quiz
10%
The adult mosquito lives on land and in water.
83%
The mosquito has four stages in its life cycle.
3%
The young of the mosquito resembles its adult.
5%
Only one stage of the life cycle of the mosquito is spent in water.
👍1
Mrs. Lim wanted to create a new plant which has flowers with white and yellow petals. She used two parent plants of the same kind. The flowers of these plants have both male and female reproductive parts.
In order to create the new plant, Mrs. Lim can _________.
A. remove all the ovaries and all the anthers of flowers W B. remove all the ovaries of flowers W and all the stigmas of flowers Y C. transfer the pollen grains from the anther of flower W to the stigma of flower Y D. transfer the pollen grains from the anther of flower Y to the stigma of flower W
In order to create the new plant, Mrs. Lim can _________.
A. remove all the ovaries and all the anthers of flowers W B. remove all the ovaries of flowers W and all the stigmas of flowers Y C. transfer the pollen grains from the anther of flower W to the stigma of flower Y D. transfer the pollen grains from the anther of flower Y to the stigma of flower W
Which is the right answer?
Anonymous Quiz
11%
A and B only
48%
C and D only
33%
B, C and D only
7%
A, B, C and D
Which of the following materials should she choose?
Anonymous Quiz
6%
Material W
65%
Material X
24%
Material Y
6%
Material Z
Which of the following two activities contribute to an increase in the amount of carbon dioxide in the air?
A Using a bicycle to get around
B Clearing Forest area to build factories
C Using reusable bags when going shopping
D Burning trash instead of dumping them into landfills
A Using a bicycle to get around
B Clearing Forest area to build factories
C Using reusable bags when going shopping
D Burning trash instead of dumping them into landfills
The population size of water lilies increased rapidly and covered the surface of the pond. Which plant would be most affected by this?
Anonymous Quiz
0%
mass
15%
cattail
71%
hydrilla
15%
water hyacinth
Which two set-ups should she use for her experiment?
Anonymous Quiz
11%
P and R
83%
Q and S
3%
P and Q
3%
Q and R
Which two parts of the reproduction system produce cells that fuse during fertilization?
Anonymous Quiz
5%
A and C
8%
A and D
85%
B and C
3%
B and D
Which of the following is an example of a physical change?
Anonymous Quiz
19%
Burning of paper
53%
Melting of ice
14%
Rusting of iron
14%
Cooking of an egg
❤1
Which of the following processes releases oxygen into the atmosphere?
Anonymous Quiz
67%
Photosynthesis
24%
Respiration
7%
Combustion
2%
Decomposition
Which statement is correct?
Anonymous Quiz
21%
Pollination takes place at F.
50%
The flower develops into a fruit at G.
24%
Sunlight is needed for germination at E.
5%
The seeds of the fruit are dispersed at F.
The water cycle on Earth can take place continuously because water_________.
A) Melts at 0°C and boils at 100°C
B) Can change from one state to another
C) Has volume and cannot be compressed
D) Is important for the survival of living things
A) Melts at 0°C and boils at 100°C
B) Can change from one state to another
C) Has volume and cannot be compressed
D) Is important for the survival of living things