Answer: A niche is the role an organism plays in the ecosystem.
Explanation: A niche also determines how the organism interacts with other organisms in an ecosystem
Quick answer: Food enters the human digestive system through the mouth before then moving through the pharynx, esophagus, stomach, intestines, rectum and anus.
Elliptical paths is wrong im trying circular paths b/c elliptical paths are circular
Explanation:
HIV virus is an RNA virus
I'm not completely sure about this answer because our unit on that was very short. So please don't be upset if its incorrect.
The answer is phytoplankton and water depth, because in order for any ecosystem to survive they need the producer population (Plants)
Middle School
Basic Rank