Answer:
The respiratory system brings oxygen unto the lungs, while the circulatory system delivers oxygen throughout the body.
Explanation:
Energy is transported by photons from the Sun to Venus (radiation).
Hormones because if you think about it. Vertebrates must have backbones and mammals have them. And, humans are basically mammals. And the glands secrete hormones.
I believe she will eat the babies
Answer:
I don't understand thequestion
