Cardiovascular system is also known as the circulatory system.
It's function is to make sure that the circulation of the blood pump by our heart is delivered all throughout our body to be able to give energy and more nutrients that our body needs.
Answer:Yes
Explanation:
Binary fission is a type of asexual reproduction where a parent cell divides, resulting in two identical cells.
C) is the best answer because atmosphere deals with gases and hydrosphere deals with water.
Hope this helps... BTW you took out (water) in the question C
Answer:
Classification system changes with the passage of time because new organisms are discovered which has unique characteristics and not fit to classify in the present kingdoms so for that new kingdoms will be formed for their classification. At first, there are only two kingdom systems but after the discovery of fungi and protists etc, the scientist introduced five kingdom system.