Across
- 5. evolution the same features have developed in different species.
- 6. in a way that happens, is done, or is chosen by chance rather than following any system, plan, or rule.
- 7. from to have developed from something that existed in the past
- 9. something tasty to eat
Down
- 1. a way of influencing behavior through rewards and punishments
- 2. having no connection
- 3. an occasion when a business or large piece of equipment stops operating, usually for a temporary period.
- 4. a pet that no longer has a home or cannot find its home
- 8. happening every evening/night