Layer D is the youngest layer
Rough and smooth endoplasmic reticulum
The answer would be choice B.
This is because homeostasis is the regulation of body temperature and sweating, caused by the respiratory system, is a way the body maintains homeostasis.
Omnivores and carnivores are related because omnivores also eat meat and carnivores eat strictly meat. For example, a t-rex is a carnivore and a omnivore is those rhino looking dinosaurs.
-------------------------------------Hope this helps----------------------------------------------------