Answer:
Ecological and ethological approaches to the study of behaviour. The natural history approach of Darwin and his predecessors gradually evolved into the twin sciences of animal ecology, the study of the interactions between an animal and its environment, and ethology, the biological study of animal behaviour.
<span>DNA methylation is a process that can change the activity of a gene without rearranging the DNA sequence. The mechanism most often is used to inactivate genes.</span>
Answer:
Explanation:
Global warming is the increase in the Earth's temperature caused by the buildup of greenhouse gases in the atmosphere such as carbon dioxide, methane, and nitrogen. The absorbed energy warms the atmosphere and the surface of the Earth.
