Calcium ion is responsible for Muscle Contractions.
Answer:
Cooperation
Explanation:
Cooperation is a type of behavior evolved by members a species living together in a close-knit society, whereby they all work and act together to ensure the common good of all members. This behavior ensures the survival of the members of the species in any environment.
Cooperation among small birds ensures protection of the members of the group against predators. Also, pack hunting is a form of cooperation among animals of a species to ensure nutrition is provided for all in the group. Se animals also form defensive circles as a form of cooperation to ensure protection of members, especially the weak and young members, against predators.
The correct option is A.
Living organisms depend on their environment to survive, when there are changes in the environment which are not favorable to the living organisms, it will eventually leads to the wiping out of the living organisms. As time goes on and the environment recover, the living organisms that will be found in the new environment are those who will be able to survive in it.
Alfred Wegener found some evidence and these are some examples:The Appalachian Mountains start in North America and it is connected along the European coastline. This tells us that once the continents were connected,and,The continents fit together like a puzzle.Also some of the fossils are found around the borderlines
hope this helps man and could i please get brainliest
:D
Answer: An "interface" .
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