The beginning of the Cambrian Period is marked by the evolution of hard body parts such as calcium carbonate shells. ... These body parts fossilize more easily than soft tissues, and thus the fossil record becomes much more complete after their appearance.
The graph below presents the number of borer beetles per hectare in relation to the size of the forest cover.
As we can see, the number of borer beetles increases with the percentage of forest cover. At 15% of the forest cover the number of beetles is around 4 per hectare and at 30% it would be around 11, showing a
275% increase in number.
If I'm right I'd say They control and direct the quantity of food passing through the digestive organs and prevent backward movement of partially digested food. Hope it's helpful.
Biodiversity means the variety of life on earth. The challenges that species habitats can present to estimating biodiversity is the high number of specie biodiversity in a certain habitat. This is not considered a good thing since <span>common and widespread species are invading it at the expense of species restricted to that habitat. Hope this answer helps.</span>
Answer:
symbiosis.
Explanation:
The term that you are referring to is symbiosis. (a symbiotic relationship)
Symbiosis is a proximate and often long-term interaction between two or more different biological species.