i think answer D( convection currents in liquid iron in the outer core generate an electric current , which produces a magnetic field)
Pepsin enzymes can then digest dietary proteins in the lumen of the stomach. Pepsin in a protease digesting the proteins into smaller peptides. It is produced by the chief cells of the stomach in the form of a proenzyme called pepsinogen. A proenzyme or a zymogen is basically inactive and needs a biochemical change to become an active enzyme. This biochemical change is brought about by the acidic environment of the stomach by the secretion of the hydrochloric acid by the parietal cells in the stomach lining.
Answer:
i think its d
Explanation:
These four basic forces are known as fundamental because they alone are responsible for all observations of forces in nature. The four fundamental forces are gravity, electromagnetism, weak nuclear force, and strong nuclear force.
Answer:
A. Contain cells that connect to form pipes.
B. Transport water and food.
Explanation:
The vascular tissue is known to be conducting tissue which has more than one cell type. It is usually found in vascular plants. It is composed of xylem and phloem.
Their function is to transport fluid (like water) and other nutrients, therefore they have cells that connect to form pipes. The xylem and phloem occur together in vascular bundles in the plant organs passing through stems, leaves and roots.
Answer:
magnetic and electric fields are applied perpendicular to each other
Microwaves are electromagnetic waves which are composed of magnetic and electric fields oscillating perpendicular to each other.
Your Welcome!!