Answer:
barter trade
Explanation:
because you exchange goods
Answer:
The population will decrease
Explanation:
The reason it will decrease is that the predators will be able to find the brown mice more easily in the snow then the white mice.
Answer:
The vessels draining Myocardium of the heart join to form <u>Coronary Sinus </u> that ultimately opens into <u><em>THE RIGHT ATRIUM.</em></u>
Explanation:
<u><em>CORONARY CIRCULATION:</em></u>
The heart muscles are called as Myocardium. Circulation of myocardium is known as Coronary Circulation. The heart needs to work continuously and requires an uninterrupted supply of blood.
<u>Coronary Arteries</u> supply oxygen rich blood to the myocardium and <u>Coronary Veins</u> remove deoxygenated blood from heart muscles and join to form Coronary Sinus that ultimately drains into the Right Atrium of heart. Some veins from the myocardium also drains directly into the right atrium.
By elimination: d is wrong for sure.
c is not right as there is no gland in the esophagus or the pharynx
b is also wrong as if there is no gland, then there is no enzyme and no chemical digestion in <span>esophagus or pharynx
a is the only one left.</span>
Answer:
To increase amount of oxygen needed in the body to get rid of lactic acid that accumulates in the body tissues
Explanation:
During exercise the body respires anaerobically causing the person to breathe faster to increase the supply of oxygen needed in the body
