An example of an ecosystem that benefits people could be the ocean.
The ocean regulates the temperature of the earth, allowing a more comfortable place for people to live.
Hope this helps!
Detective= they uncover mysteries and understand how things happen by sampling blood and looking for clues
Question 5 is all of the above question 6 is bases that are found on dna question 7 is the one on the top
Epithelial cells also carry out active transport.
Hope this helps.
~Jurgen