| asexual | Reproduction without sex |
| characteristic | Another word for feature |
| clone | Identical copy of an organism |
| cloning | Making a copy of an organism |
| egg | Female sex cell |
| environmental variation | Differences that have happened since birth, caused by our surroundings |
| fertilisation | The joining of a male and female sex cell |
| fusion | Joining together |
| gene | Structure in a nucleus that carries information about a characteristic |
| inherited variation | Differences that have been passed on genetically from our parents |
| nucleus | Control centre of the cell containing genetic information |
| offspring | The babies of an animal |
| ovule | Female sex cell in a plant |
| pollen | Male sex cell in a plant |
| pollination | The moving of pollen |
| reproduction | Being able to produce more of the same species |
| selective breeding | Breeding organisms that have characteristics that people want them to have |
| species | Group of organisms that can breed to produce fertile offspring |
| sperm | Male sex cell |
| variation | Differences between organisms |
Learn the spellings and definitions of the key words for the topic.
Either:
Why are brothers and sisters similar?
How are identical twins formed?
Why are identical twins more similar than brothers and sisters?
Can identical twins be different sexes?
Will multiple births, when eggs are fertilised outside the body and then implanted, produce identical or similar offspring?
Or:
Find one breed of dog that is used for each of these jobs:
Each statement is false. Rewrite each one as a true statement, showing as much scientific understanding as possible.
Either:
Make a spider diagram using the key words. Explain each link.
Or:
Pair up the key words, explaining the reason for the link.