In the circulatory system heart is the key organ. Through circulatory system transport of nutrients, gases such as oxygen to the body and nitrogenous waste away from the body. Human blood circulation is a double circulation as flood flows through two routes that is one for oxygenated blood and the other for deoxygenated blood.
The parts of the circulatory system in the diagram is given below:
a. Pulmonary artery, carries deoxygenated blood to the lungs from heart.
b. Aorta, carries oxygenated blood to the body tissues from the heart.
c. Inferior vena cava, carries deoxygenated blood from body tissues to the heart.
d. Arterioles, supplies oxygenated blood to the body cells.
Answer:
You better read more, kiddo.
If Calcium is Ca, why not Mg for magnesium; they are right next to each other; read until you know to Iron, Fe. (It is Fe because it is very long known, and kept its Latin name).
Like Sodium and Mercury and Lead &
Potassium. Look them up, & it will help you remember. Natrium, Hydragyrum, Plumbium et Kalium.
Good Luck!
Explanation:
Answer:
1) 1-buten (longest carbon chain has 4 C, -en means double bond)
2) 2-penten
3) 3-methyl-2-penten
4) 3-methyl-2-buten
5) 1,1-dichlorpropen
6) 2-penten
Different colors of sedimentary rock are determined by the environment where they are located. For example, red rocks form where oxygen is present. Darker sediments form when the environment is oxygen poor.
So, basically, the weather and surroundings of the rock, so B.
