14 Two organs are considered to be a part of the same body system if the organs
(1) are located next to each other
(2) work independently of each other
(3) work together to carry out a life function
(4) are made up of cells with organelles

The afrikaners are an example of a founder effect that occurs when a new colony is started by a few members of the original population and the random decrease in genetic variation is an example of

Four types of motile cells in human body?

Match the correct terms to their descriptions a system in which only energy but not matter is exchanged frozen water in snow part of geosphere that includes only soil a thin layer between the troposphere and the stratosphere cryosphere tropopause closed system pedosphere