An ecosystem is the biotic and abiotic factors which are responsible for the survival of an animal
Answer:
Explanation:
The tentacles of an octopus and the tube of a sea star are analogues structures （＾∀＾●）ﾉｼ
Answer:
The conduct ,aims or qualities that characterize or mark a profession or a professional person is known as professionalism.
Explanation:
Hope it helps.
This link should help you understand http://www.universetoday.com/20289/phases-of-the-moon/#
