Answer:
Intraspecific competition
Explanation:
Answer:
A. One cell took over another cell
Explanation:
Mitochondria is an organelle present in a eukaryotic cell that performs the function of producing ATP molecules from the available substrates in the cell.
The mitochondria organelle has its DNA other than the cellular DNA which shows that it was once an independent organism. This was proved by the endosymbiotic theory that during the formation of the eukaryote cell, the proto-eukaryote engulfed the chemosynthetic bacteria which later formed the symbiotic relationship with the cell and evolved into the mitochondria.
Thus, Option-A is the correct answer.
The reintroduction of gray wolves to yellowstone national park has contributed to a decline in the elk population and provided food for bald eagles and ravens.
Hope this helps!
-Payshence xoxo
The unconjugated bilirubin collects in the child's liver and spleen, enters circulation, and then builds up in other tissues such as the eyes and skin. This buildup causes jaundice and eventually nerve and brain damage.
Answer:
Omnivorous animals can be described as a primary consumer or a secondary consumer.
Explanation:
Some heterotrophs can derive their nutrition from plant sources and animal sources both. These organisms are called omnivorous animals. When an omnivorous organism derives its nutrition from plant sources, it serves as a primary consumer. On the other hand, when the same omnivorous organism derives its nutrition from animal sources, it serves as a secondary consumer. Squirrels and rats are examples of such heterotrophs.