Answer:
1. An analogous structure is when a animal evolves to gain an ability such as flight. but this includes the animal won't be able to gain it like other ones such as for example insects and bats they evolve and gain the ability at different times.
2.Adaptation is when a animal has to get used to it's new environment such as getting a pet from Petco the animal needs to get used to YOU. and the environment you have given it.
3.Biodiveristy refers to all the variety of life that can be found in earth.
Ex: Plants,animals,Fungi, And micro-organisms.
This also includes the community that they form and the habits in which they live.
4Extinction is when an animal species can no longer be created or found in other cases this means the animal will be remembered in photos,videos,And drawings
Ex: If all the dogs in the world die in just the matter of seconds and they cannot breed or scientifically create one. then the animal is no longer part of the world species. thus making it extinct.
Step-by-step explanation:
Sorry if I'm wrong.
hope this helps.