The Earth's orbit around the sun would be the correct answer to that. :) Good Luck
B. some species die out when environmental changes occur
Salutations!
A group of cells working together are called tissues. Organisms are made up of this structure. Cells are the smallest unit of life. A group of tissues working together is called organ. A group of organs working together is called organ system. An organ system working together makes up an organism.
Hope I helped (:
Have a great day!
Answer:
cooperation... if no one works together then it's more of a failure than a success
Explanation:
