Which valves produce the second heart sound when they snap shut

Are related chloroplasts to mitochondria?

This is the production and discharge of something, especially gas or radiation.

What is the definition of Data (Science)

Many organism dispose of excess body heat by evaporative cooling. What property of water is responsible for this adaptation? Explain your answer

What is the function of a buffer, such as bicarbonate ions in the blood

When in england, darwin displayed a wide variety of physical symptoms. these symptoms were probably ___?

The female reproductive system in humans differs from the human male reproductive system in that it is solely responsible for

How are sedimentary rocks layers deposited

A cell contains a 30% solute concentration and 70% water concentration. If the cell is placed in a solution that is 60% solute and 40% water, what will happen to the cell, and what condition is the cell in?

During upwelling, nutrient-rich water rises to the surface. How would this most likely affect the biotic components of the ecosystems where the upwelling is taking place?