Answer:
Exoskeleton a flexible shell that allows animals to crawl in and out.
Tether a rope or chain tied to an animal to it within keep a certain area
Explanation:
Words that could reverse things, for example, 'however', 'turn out', 'next thing I know'.
It'd be best if you looked it up on google, because then you could write it in your own words instead of having your teacher find out you got your answer off here, i don't want you to get in trouble
The answer is b because I said so