A seed contains an embryo. What does the embryo grow into?
Important Questions on Sexual Reproduction in flowering Plants
Complete the labels in the diagram using these words:
The sea bean grows on the banks of rivers in Africa, Australia and South America. Its seeds form inside large woody pods. The pods drop into the river and float away.
Name the type of seed dispersal used by the sea bean. (Water/ Wind/ Animals)
Moninder wants to find out the best temperature for mustard seeds to germinate. He uses three Petri dishes. Each dish has a layer of moist tissue paper covered with 30 mustard seeds. Moninder puts one dish in a warm cupboard, one in a cool cupboard and one in a refrigerator. He waters all of the seeds regularly for 21 days. His results for the first four days are shown in the table.
| Number of germinated mustard seeds | Number of germinated mustard seeds | Number of germinated mustard seeds | Number of germinated mustard seeds | |
| Day 1 | Day 2 | Day 3 | Day 4 | |
| Warm cupboard | 0 | 5 | 20 | 24 |
| Cool cupboard | 0 | 2 | 8 | 14 |
| Refrigerator | 0 | 0 | 0 | 0 |
How many seeds had germinated by day 4 in the warm cupboard?
Moninder wants to find out the best temperature for mustard seeds to germinate. He uses three Petri dishes. Each dish has a layer of moist tissue paper covered with 30 mustard seeds. Moninder puts one dish in a warm cupboard, one in a cool cupboard and one in a refrigerator. He waters all of the seeds regularly for 21 days. His results for the first four days are shown in the table.
| Number of germinated mustard seeds | Number of germinated mustard seeds | Number of germinated mustard seeds | Number of germinated mustard seeds | |
| Day 1 | Day 2 | Day 3 | Day 4 | |
| Warm cupboard | 0 | 5 | 20 | 24 |
| Cool cupboard | 0 | 2 | 8 | 14 |
| Refrigerator | 0 | 0 | 0 | 0 |
What conclusion can you draw from Moninder's results?
The diagram shows the flower of a lily plant. This lily is pollinated by insects.
Imran has three different seeds, each with a different shape. He wants to investigate which seed will be dispersed over the furthest distances. He drops each seed from a height of 2 metres and measures how far the seed travels horizontally.
| Seed | Distance travelled (cm) | Distance travelled (cm) | Distance travelled (cm) |
| A | 74 | 48 | 68 |
| B | 3 | 6 | 4 |
| C | 0 | 1 | 1 |
How could lmran make his results more accurate?
