45 is Option 3. Number 44 is 2. Number 43 is 2. Number 42 is 2 and number 41 is Hemlock so 3
Answer:
<em>A season of extra rain</em>
Explanation:
A prarie can be described as a habitat which is abundant in grasses. Although some type of shrubs and flowering plants can also be found on this land, grass can be seen abundantly in such ecosystems.
If a season with extra rain occurs in the prarie habitat, then there will be a production of more grass on this land. As a result, the rabbits will have more food to feed on. Hence, a season of extra rain will increase the carrying capacity for the rabbits.
There are sometimes similarities in the embryonic stages of organisms that do not exist in the adult stages.
<span>The ability of water to hold more heat than land keeps the temperature on earth moderate
If the oceans didn't hold large amounts of heat, then the Earth would probably overheat which would cause many problems for all life forms.</span>
Answer:
The Mitral/Bicuspid Valve
Explanation:
The heart is composed of 4 chambers: left and right atria, and left and right ventricles. The “right heart” (right atrium and ventricle) receives deoxygenated blood from the systemic circulation through the Vena Cava, and impels this blood towards the lungs through the Pulmonary Arteries where it will be oxygenated. The “left heart” (left atrium and left ventricle) receives oxygenated blood from the pulmonary circulation through the Pulmonary veins and impels this blood towards the systemic circulation through the Aorta artery.
The systemic and pulmonary circuits work in series, and maintaining the unidirectional course of the blood flow is very important. This can be done by the presence of fibrous valves that are present between the atrium and the ventricles, and in between the ventricles and the Pulmonary/Aorta artery.
The location of these structures are as follows:
Systemic circulation ⇒ Right Atrium → [Tricuspid Valve] → Right Ventricle → [Pulmonary Valve] → Pulmonary Artery ⇒ Pulmonary circulation
Pulmonary circulation ⇒ Left Atrium → [Mitral/Bicuspid Valve] → Left Ventricle → [Aortic Valve] → Aorta ⇒ Systemic circulation