Answer:
Cell Membrane
Explanation:
The unique structure of the cell membrane allows small substances (like oxygen or carbon dioxide) to easily pass through.
People have manipulated the genome of horses and ponies in the lab to produce the breeds we know today
Because mountains impact on the climate and on the flat surface of the territory, and they effect lakes, rivers, and every human construction
<span>d. production of chemicals to ward off insects
</span><span>Adaptations are the result of evolution in different living organisms. This process occurs amazingly through gene mutation but it takes a very long period in time. Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time.</span>
