To enlarge crops or mix types for a different flavor ,pest control,or if a type of vegetable is fading away
Answer:
Ralph is looking at a vein (likely a muscular vein).
Explanation:
Of all three great types of vessel present in vertebrates (arterial, venous, lymphatic), only veins and lymphatic vessels may normally contain valves. This is an essential feature of vessels which present low pressure flow, since it ensures that such flow is unidirectional.
Since blood cells are not typically found in lymphatic vessels, the vessel in question can be assumed to be a vein.
technology is the application of science for the betterment of man
Explanation:
therefore what is discovered on science is practiced in an applicable way which is technology
It goes from high to low. It is explained as it is trying to spread out or it is trying to be equal across a space.