Answer:
If there wasn't a lot of organisms and energy in the productive part of the triangle, then there wouldn't be a lot of third level organisms. The energy piramid would be a lot smaller then what it is here, and maybe if the energy source was low then there might not be such a vast varity of animals in the ecosystem.
You're welcome friend <3
Astronomy is the scientific study of celestial objects. (Such as stars, planets, comets, and galaxies)
Answer:
The correct answer is option - b. reflects evolutionary history.
Explanation:
Biological classification is the method that helps researchers identify, naming, or defining an organism to study the relation and similarities between organism and group them on their characteristic features.
the classification system is considered best that gives an idea about the evolutionary history of the organisms. Modern classification systems use genetic analysis and phylogeny of the organisms to get an idea about evolutionary history.
Thus, the correct answer is option - B.
I found this on the web. I hope this helps!!
Answer:
ventilation
Explanation:
Breathing, also known as ventilation, is the process of moving air or water in order to facilitate the gas exchange between the external and internal (body) environment, mostly to eliminate carbon dioxide (CO2) and bring in oxygen (O2). For example, fish are aquatic animals that need to run water over their gills to get the O2 that they need to survive (gills are organs that create a large surface area for ventilation). Moreover, insects ventilate their tracheal system to get O2. Finally, terrestrial vertebrates (i.e., amphibians, reptiles, birds, and mammals) use organs called lungs to exchange O2 and CO2 between their cells and the external environment.
