Alkanes are linear, or branching, compounds that are made of varying numbers of carbon atoms that are all saturated with hydrogen atoms. The formula for an alkane is CnH(2n+2). This means that the number of hydrogen atoms equals twice the number of carbon atoms, plus two. Methane is the simplest hydrocarbon possible.
Bio-geographic isolation is the separation of part/a whole species due to either biological or geographical reasons.
Biological could be lack of food, or a more preferable source of food somewhere else, etc. Geographical could be rivers, oceans, mountains, etc.
The oceanic crust gets carried underneath another tectonic plate and it sinks hundreds of miles into the Earth's Mantle.
Answer:
causes alteration
Explanation:
when one particular species that should perform a particular function is removed it will change the ecosystem
D. a car is not made up of living cells
