Answer: Similarities in amino acid sequence strongly suggest common ancestry
Explanation:
The chemical make-up and biochemical process of all organisms are as very similar. For example, all organisms
- are build up of the same types of complex molecules such as carbohydrates, lipids, proteins (polymers of amino acids) and nucleic acids
This similarity strongly suggest common ancestry for all organisms, thus leading to evolution of individual species
Answer: ozone concentration
Explanation: The Dobson Unit is the most common unit for measuring ozone concentration. Becuse ozone concentration is hard to measure they use The Dobson Unit.
A scientist who studies the interactions or interrelationships between organisms and their physical environment is an Ecologist.