The unit is called Ecosystem.
Ecological units comprise concepts such as population, community and ecosystem.
<em>An ecosystem</em> is a community of plans and animals interacting with each other in an particular area. They also interact with their non-living environments (water, earth, sun, soil, climate and atmosphere).
The robins are in relationship with the earthworms because the robins eat them in order to survive and as a part of the food chain. The food chain is a linear sequence of organism through which nutrients and energy pass as one organism eats another. Ecosystems consist of creatures that mutually benefit from each other.
Answer:
Political boundaries is the correct answer.
Explanation:
The scramble for Africa is also known as race for Africa and started in 1880's and lasted till the first world war. it was the period when the European powers started to colonise the Africa. Some of the famous people who contributed in the colonisation of Africa were David Livingston, Henry Morton Stanley and Jules Ferry, their main purpose was to get more land in Africa. The Berlin Conference was the major event which tried to end the disputes of European countries about their colonies in Africa. In this conference laws were created to rule the colonies backed with the military might and draw the artificial political boundaries of the colonies in Africa.
There were no provisions in it for protecting the rights of the citizens.
The Constitution agreed to the Addition Of The Bill Of Rights.
Answer: it is ratified by two-thirds of the U.S. Senate
Explanation:
Women in the colonies married earlier than their European counterparts, and as a result had larger families. In the colonies, they married about four years earlier. They also had a higher fertility rate and long lives which led the population of New England to boom
