A: Homeostasis
Reason: cell membrane has nothing to do with question and C and D are terms for sugars
The combustion of fossil fuels like coal, petroleum and other factory combustibles is a major cause of air pollution. ... Meanwhile, emissions caused by gasoline-burning vehicles – i.e. CO, CO², nitrogen oxides, particulates and water vapor – are also a significant source of air pollution.
I say Air Pollution
Digestive enzymes speedup reactions that break down large molecules of carbohydrates, proteins, and fats into smaller molecules the body can use. Without digestive enzymes, animals would not be able to break down food molecules quickly enough to provide the energy and nutrients they need to survive.
<span>During endocytosis, the vesicle membrane fuses with a lysosome, and the membrane and its contents are broken down by enzymes</span>
Last one: blood going to the cells receives co2