1993 年
生物 · 共 58 題 · 點擊選項即時核對答案
Questions 53 and 54 refer to the graph below which shows the distribution of four kinds of green algae (W, X, Y and Z) at different depths of water in a pond :
Which plant is best adapted to the dim light conditions ?
Questions 53 and 54 refer to the graph below which shows the distribution of four kinds of green algae (W, X, Y and Z) at different depths of water in a pond :
The probable relationship between X and Y is
If nitrogen-fixing genes can be transferred from leguminous plants into other crop plants, this can
The following is a simplified diagram of a nutrient cycle :
Which of the following correctly identifies the three groups of organisms ?
| X | Y | Z | |
|---|---|---|---|
| decomposers | consumers | producers | |
| consumers | decomposers | producers | |
| producers | consumers | decomposers | |
| producers | decomposers | consumers |
Which of the following events can increase the nitrate content of soil ?
Which of the following changes in the environment would promote the decomposition of leaf litter in a tropical rain forest ?
| Air temperature | Humidity | |
|---|---|---|
| increase | decrease | |
| increase | increase | |
| decrease | increase | |
| decrease | decrease |
Questions 59 and 60 refer to the diagram below which shows part of a sewage treatment plant :
The rotating sprinkler provides air to this part of the sewage treatment plant in order to
Questions 59 and 60 refer to the diagram below which shows part of a sewage treatment plant :
Which of the following statements about the outgoing liquid is correct ?