Answer:
C
Explanation:
deer are alive and therefor biotic. As they graze they eat grass, walk on land and use oxygen, - all parts of the environment
They were gigantic. Way bigger than a normal toroise
They do this real fancy thing called breathing. There's a couple other organisms that do this too, but none compare to the frog
Answer:
a and c
Explanation:
I do not really have an explanation but I hope this helps :)