Someone please answer this quickly i’ll be so grateful If a terrestrial ecosystem has a gross primary production of 4,500 kcal/m?yr and a cellular respiration rate of 2.500 kcal/m2/yr, what is the net primary production for this ecosystem?
A) 200 kcalmyr
B) 250 kcalmyr
C) 2.000 kcalmly
D) O 7.000 kcalmy

Interactions between organisms and their environment impact the organism’s overall population. the jaguar panthera onca is the largest cat in north america. it is found in areas across the southwest, including arizona, new mexico, and texas. it is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, tapirs, and many smaller mammals. which shows the relationship between the jaguar and turtles?