Answer:
<em>The total amount of energy transferred during photosynthesis for this ecosystem equals</em><em> 260,000 kcal/m2/yr.</em>
Explanation:
To answer this question, we need to know that
- gross primary productivity (GPP) = energy captured and converted into chemical energy during photosynthesis
- net primary productivity (NPP) = difference between GPP and respiration rate
So, to calculate GPP we need to sum NPP to Respiration rate. This if,
NPP = 165,000 kcal/m2/yr
R = 95,000 kcal/m2/yr
NPP = GPP – Respiration
Then,
GPP = NPP + R
GPP = 165,000 kcal/m2/yr + 95,000 kcal/m2/yr
GPP = 260,000 kcal/m2/yr
The correct answer is option B. A and B only
Within a phase, a change in heat causes the temperature of the substance to change as the kinetic energy of the molecules changes. During a phase change, however, a change in heat causes a change in the potential energy of the molecules and the temperature will stay the same.
<h3>What is Potential energy?</h3>
Potential energy may be defined as a form of accumulated energy that relies upon the comparative situation of diverse parts of a system.
The above passage determines the differentiation between the kinetic and potential energies with respect to temperature and phase change.
Therefore, it is well described above.
To learn more about Potential and Kinetic energy, refer to the link:
brainly.com/question/14427111
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Answer:Valves stop blood flowing backwards
Explanation: Valve are flags of tissue that control the direction of the blood in our heart.,it prevent the backwards flow of blood. valves regulate blood from flowing back into the atria.The right and left atrio-ventricular valves prevent blood from flowing backwards into atria. When the ventricle is full,the valve prevent backwards flow of blood.
