The digestive system breaks down food, the respiratory system takes in oxygen, and the cardiovascular system delivers the oxygen and food to the cells.
It would eventually lead to overpopulation
D. Growth, Metabolism, and Differentiation.
I’m pretty sure flowers, when they are buds, are protected by leaf-like structures called “sepals.” All of the sepals collectively are called a calyx. They protect the bud and are behind the actual flower petals when it blooms. Hope this helped.
I'd say C. an allergic reaction. Mainly because lots of people are allergic to many things and many people intend to have seasonal allergies cause by plants. Hope it helps!
