Respiratory system is refers to as the organs which are involved in breathing such as nose, throat, larynx, trachea, bronchi, and lungs. It is also known as respiratory tract.
The circulatory system is refer to as which contains the heart and the blood vessels and blood moves throughout the body in vessels. This circulatory system helps tissues to get enough oxygen and nutrients, and it helps them get rid of waste products.
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What is breathing?</h3>
When person inhale (breathe in), air enters in the lungs, and oxygen from atmosphere moves to body blood. At the same time, carbon dioxide, a waste gas, moves from blood to the lungs and is exhaled (breathed out).
Breathing process is known as gas exchange which is is essential to life.
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Most stomata are located on the bottom of leaves because direct sunlight does not hit the bottom surface. If stomata were on the upper epidermis (the top side of the leaf), the direct sunlight hitting the leaf would cause more water to be lost through the stomata because of evaporation. Hope this helps!
Answer:
In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result? Individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce.
Nitrogen-fixing bacteria are microorganisms present in the soil Or in plant roots that change nitrogen gases from the atmosphere into the solid nitrogen compounds that plants can in the soil