Answer:
Competition.
Explanation:
Competition refers to a relationship between rival organisms whose economic niches overlap with each other. When both organisms compete with each other for the limited resources available in ecosystem.
In the given case, the Sparrows replacing Bluebirds is a result of competition. Because they both share the same ecological niche, they are in competition with each other for the limited resources.
Therefore, competition is the correct answer.
Answer:
Spinal cord
Explanation:
Central nervous system consists of two parts Brain and Spinal cord.
Brain control major body function like sensation, movement, memory.
spinal cord collects information from body sends it to brain and then get information from brain and send it to whole body