Explanation:
The pulmonary valve (sometimes referred to as the pulmonic valve) is a valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. It is one of the four valves of the heart and one of the two semilunar valves, the other being the aortic valve. Similar to the aortic valve, the pulmonary valve opens in ventricular systole, when the pressure in the right ventricle rises above the pressure in the pulmonary artery. At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonary valve.
<u>Answer:</u>
The eggs from the female laying 1000 eggs have larger yolks than the eggs from the female laying 100 eggs.
<u>Explanation:</u>
- Fitness trade off is the relationship between two factors namely size and reproduction, survival and reproduction,quality and quantity of the eggs etc.
- The size, weight and number of eggs depend on the fitness of the fish. The traits present in the fish plays a key role in the fitness trade off.
- Also the fertility/fecundity is a factor of the trait/allele.
With the increase in temperature, solubility of gases in liquid decrease.
Option A
<h3><u>Explanation:</u></h3>
Gases are soluble in liquid but it's solubility depends on temperature and pressure. As the temperature increases, the solubility of gases decrease. It is because with the increase in temperature, the kinetic energy of both the molecules of gas and the solvent increase. This leads to increase in molecular vibration and this makes the gas molecules escape the solution.
This makes the gas solubility vs temperature graph have a hyperbolic curve. As the temperature increases the solubility decrease and vice versa.
<span>4 is a good answer. The question ‘can planting cover crops reduce erosion’ can be easily answered by creating a scientific study. You could create an experimental group where cover crops are planted and a control group where they are not, and measure the erosion of each group. </span>
