Teens need protein for many reasons, including building and repairing muscles, promoting hair and skin health, fighting off infections and carrying oxygen in the blood. Proteins also help with building enzymes, hormones and vitamins, especially important for adolescents. Proteins are made up of building blocks called amino acids, most of which your body can naturally produce. However, there are nine essential amino acids that your body cannot make, but that you can get through foods you eat. It is important for teenagers to consume a variety of proteins so their bodies get proper nutrients for growth and development.
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the other options either cause people to die (c) or offend people (b and d)
Answer:
The missing step is oxygen is removed from the water after step 3.
Explanation:
The steps listed by Xavier are:
- <em>Water is drawn in trough pores and enters the central cavity.
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- <em>Food is filtered and digested.
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- <em>Water leaves trough an opening at the top of the body.</em>
Porifera or sponges are aquatic, immobile invertebrates whose structure is saccular with an upper opening, the osculus.
Sponges absorb water through their pores, where the porocytes are found, and through flagellated cells -the coanocytes- the movement that allows the entrance of water to the spongocele or atrium is produced, in addition to the phagocytosis of organic elements.
Once the water is in the interior chamber of the sponges, the organic particles are phagocyted to be digested, and the oxygen is removed from the water, and passes through diffusion into the cell. The waste products, as well as carbon dioxide, are released into the water that will be expelled through the osculus.
<u><em>In Xavier's list, the missing step is the removal of oxygen from the water, before it is expelled from the body of the sponge</em></u><em>.</em>
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Learn more:
Sponge structure brainly.com/question/11256747
Artificial Selection.
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