<span>A. Alkanes - All single bonds. e.g. Methane, Ethane, Propane, Butane etc.
B. Alkenes - At least one double bond. e.g. Methene, Ethene, Propene, Butene etc.
C. Alkynes - At least one triple bond. e.g. Methyne, Ethyne, Propyne, Butyne etc.
Option (C) Alkyne is true...</span>
The global distribution of organisms and the unique features of island species reflect the evolution and geological change. Fossils. Fossils document the existence of now-extinct past species that are related to present-day species.
Oil, wood??? I'm confused about the question
Answer:
A & B
Explanation:
Same amount of protons but different numbers of neutrons.
Answer:
All living organisms respire. Cells need and use the energy that is formed through this process to assist with life processes in order for organisms to survive and reproduce. Oxygen and carbon dioxide are the main gases involved in aerobic respiration. These conditions are called gas exchange surfaces.
Explanation: