Answer:
4. cannot be made by the body and therefore must be consumed to maintain health.
Explanation:
Essential nutrients are nutrients that our body cannot synthesized and also those nutrients our body cannot produced in sufficient quantity, for the normal functioning of the body. These nutrients have to be obtained from the food we consume to support our life and health.
Essential nutrients obtained from food include carbohydrates, fats and oils, proteins, water, as well as certain vitamins and minerals. These essential nutrients that we get from our food are needed for good growth and development, prevention of diseases, as well as for maintaining good health.
Answer:
D. reproduction
Explanation:
If the species doesn't reproduce they die out or become extinct.
<span>Fires can help eliminate the roots and shoots of invasive plants and stimulate growth of native species. Controlled fires can eliminate infected plants and enrich the soil. Controlled fires can also eliminate overcrowding of plants or trees. It can eliminate diseased or damaged plants as well.</span>
A is your answer I believe because they do indeed provide a way to review other scientists work and or experiments
They could improve the experiment that they made by adding another variable such as: watering the plants with fresh water. This way they could have a better comparison how plants grow based on the type of water they are exposed with.
