· The role an organism or a population plays in an ecosystem is known as its -
A. Adaptation
B. Niche
C. Habitat
D. Prey

Can someone i have no idea of how to do this.

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?