Explanation:
All animals are eukaryotic, multicellular organisms, and almost all animals have specialized tissues. Most animals are motile, at least during certain life stages. Animals require a source of food to grow and develop. All animals are heterotrophic, ingesting living or dead organic matter.
Answer:
Genetics take a long time to mutate.
Explanation:
Its gone be b cause the organism can produce them out
Answer:
Destruction of habitats, Introduction of non-native species, pollutions, and the over harvesting of species.