conservation around the world

5. — kangaroos, wallabies, and other marsupials
8. - Monofilament Recovery and Recycling Program is an innovative recycling project dedicated to reducing the environmental damage caused by discarded monofilament fishing lines.
12. - large, fully aquatic, mostly herbivorous marine mammals sometimes known as sea cows.
13. species — a species likely to become endangered.
15. - means protecting resources, ecosystems, and structures for present and future generations
18. - in the broadest sense, is the physical world or universe.
19. - means using resources in ways that do not deplete them.
20. — the genetic variability of living organisms on our planet.
21. the family Macropodidae.

1. — a unit of plants, animals, and nonliving components of an environment that interact.
2. - is a vertebrate animal of the class Mammalia.
3. — a fishing line made of a single untwisted strand of synthetic filament.
4. species — a species of plant or animal whose numbers are decreasing at an alarming rate and is threatened with extinction by human-made or natural changes in the environment.
6. - are a paraphyletic group of animals that neither possess nor develop a vertebral column.
7. - are four-limbed and ectothermic vertebrates of the class Amphibia.
9. - means taking care of our environment by wisely managing its resources.
10. Pets — animals bred for centuries to select traits that make them well-adapted for living with humans.
11. — growing or living on land.
14. - means returning resources, ecosystems, and structures to their original condition
16. pets — animals that have not been domesticated, such as boa constrictors, green iguanas, sugar gliders, parrots, saltwater, and freshwater aquarium fish.
17. Reef - is an underwater ecosystem characterized by reef-building corals.