Which one of the following statements accurately describes a characteristic of red blood cells?
a. they transport oxygen to all the cells of the body.
b. they're agents of inflammation.
c. they lack hemoglobin.
d. they're convex disks with a large nucleus.

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?