<span>Lungs take in air, and diffuse (absorb) air into the capillaries of the blood. However, this process is two steps, one for inhalation and one for exhalation. Diffusion takes place in both processes, and serves different purposes. One is to absorb oxygen, the other is to rid co2.</span>
Answer:
Microscopic observations have shown that the cell is the smallest functional unit of life. We now know the various organelle (or organs) of an individual cell and how they work. For example, a bacteria is a single-cell organism and is capable of carrying out all its life process (growth, division, metabolism, etc.)
Explanation:
<h3><em>The contents of the cell, or the structures of the cell, allow the cell to be "specialized." Together with the cell's proteins, they allow the cell to do specific things. They allow a cell to act like a neuron or a bone cell or a skin cell.</em></h3>
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Answer:
Venus is not ideal for supporting life because it has a thick atmosphere which causes extremely high temperatures.
Explanation:
- Venus is the second planet near to the sun in solar system.
- It is called the twin of Earth because of its almot similar size.
- It completes one revolution in 225 days.
- It is the hottest planet on in the solar system having temperature near 735 K which is more than mercury, the nearest planet to the sun.
- The high temperatures of Venus results from its extremely dense and Carbon dioxide rich atmosphere. The atmosphere is surrounded by thick clouds of sulphuric acid that cause sulphuric acid rains.
- It is known as evening star.
