Answer:
The correct answer is Circulatory system.
Explanation:
Circulatory system is also known as the cardiovascular system which is used to circulate the blood around the body of most of the animals. It mainly consists of a heart that is used to pump the blood and different blood vessel that are used for the transportation of blood to different parts of the body.
The main functions plays by circulatory system are:
1. It provides oxygen to different organs of the body through blood.
2. It helps in providing nutrients, hormones to different organs and remove waste products from cells.
3. It helps in locating the immune cells to the injury site which helps the body to fight the infection.
option B:is correct answer
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Answer:
Some animals would be forced to migrate.
Explanation:
Animals and species cannot adapt, evolve, or go extinct in a matter of weeks. Adaptation and evolution happen over the course of hundreds of thousands of years and extinction would be unlikely unless there was an extremely endangered species that died when the forest was cut down.
Biologists used the world's largest single-celled organism, an aquatic alga called Caulerpa taxifolia, to study the nature of structure and form in plants. It is a single cell that can grow to a length of six to twelve inches.