While many human activities produce greenhouse gases, the greenhouse effect is actually a natural process. Many atmospheric gases help trap heat in Earth's atmosphere, including natural gases like carbon dioxide. So while human activities exacerbate the natural greenhouse effect, it is not solely due to them.
Answer:
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Explanation:
The main parts of the immune system are: white blood cells, antibodies, the complement system, the lymphatic system, the spleen, the thymus, and the bone marrow.
Female gametes are called ova or egg cells, and male gametes are called sperm.
The answer is D matter and energy shown in the question can change forms and is transferred to other locations for organisms to be used as building blocks for others.<span />
