<span>It travels at the speed of light, in a vacuum. Through any other medium it travels slower than the speed of light, depending on the medium.</span>
Unicellular organisms are devoid of circulatory systems and will be found living in moist or watery environments to facilitate uptake of nutrients and gases and expulsion of waste by the process of diffusion.
Their cell is structured such that it can engage in direct exchange of substances with its environment. Water serves as the perfect medium or environment through which this exchange can occur.
Gases and nutrients simply diffuse into the cell or are moved into the cell by means of active transport or phagocytosis.
Neon is a non-reactive gas, because it <span>has a full outer energy level and does not wish to lose or gain any electrons. (Solution:B) Non-reactive gases have filled outer shells and </span>form no significant compounds. The electron configuration of the gas is responsible for the reactivity of the gas. The <span>electron orbital of the Neon that is filled with eight electrons.</span>
Answer: Capillaries
Explanation: Blood vessels have the same basic structures used to circulate blood of different composition to and away from the heart to the body. Blood vessels are arteries, veins and capillaries. Arteries carry oxygenated blood from the heart to the body and veins carry deoxygenated blood from the tissues to the heart.
Capillaries are the ones that work with body cells for exchange.They collect nutrients and oxygen from the blood to the cell and also collect carbon dioxide and waste from the cell to the blood which is transported to the vein where it travels via the venous system and goes through the heart, then to the lungs for gaseous exchange.
Therefore the enswer is, capillaries.
A. climate, because temperature and precipitation are directly related to how dry or fertile soil is
