Their outermost shell has the maximum number of electrons it can hold.
Elements only react with each other to gain electrons to complete their outermost shell. Since noble gases already have a complete outer shell, they're usually inactive.
Hypothesis: If the pH is related to the growth of oysters and oysters are placed in water with varying pH levels to test growth, then (INSERT YOUR LEVELS HERE, MORE BASIC WILL HAVE THE BEST GROWTH, MORE ACIDIC WILL HAVE THE WORST GROWTH. WHAT IT SHOULD LOOK LIKE then the pH of 3 will have the least amount of growth followed by the pH of 5, 7, and 9.). This will happen because a lower pH means less carbonate which oysters require to build their shells. As the acidity rises, oyster's shells will become thinner meaning slower growth and death rates will rise.
Independent Varible: pH (I would probaly also add the pH of what like it should be the pH of water)
Dependent Variable: oyster growth
Answer:
1. Energy.
2. Pellagra.
3. Niacin.
4. Beta carotene.
5. Osteoporosis.
6. Calcium.
7. Epithelial.
8. Intrinsic.
9. Sunlight.
Explanation:
1. Riboflavin and thiamin are important for energy production within cells, including nervous system cells.
2. Pellagra: the niacin-deficiency disease causing dermatitis.
3. Niacin: this vitamin can be produced in the body if enough tryptophan (an amino acid in proteins) is present.
4. Beta carotene: is one of the plant-based forms of vitamin A that must be made active in the body.
5. Osteoporosis: Thinning of bones that occurs in older age and results in serious fractures.
6. Active vitamin D acts on 3 key target organs/tissues in the body to raise the blood calcium levels.
7. Epithelial: Type of tissue that lines and protects the digestive tract and respiratory tract and is maintained by vitamin A.
8. Intrinsic factor, produced in the stomach, is needed for the body to be able to absorb adequate amounts of vitamin B12.
9. Vitamin D can be produced by exposure of the skin to sunlight.
Evolutionary<span> thought, the conception that </span>species<span> change over time, has roots in antiquity - in the ideas of the </span>ancient Greeks<span>, </span>Romans<span>, and </span>Chinese<span> as well as in </span>medieval Islamic science<span>. With the beginnings of modern </span>biological taxonomy<span> in the late 17th century, two opposed ideas influenced </span>Western<span> biological thinking: </span>essentialism<span>, the belief that every species has essential characteristics that are unalterable, a concept which had developed from </span>medieval Aristotelian metaphysics<span>, and that fit well with </span>natural theology<span>; and the development of the new anti-Aristotelian approach to </span>modern science<span>: as the </span>Enlightenment<span> progressed, evolutionary </span>cosmology<span> and the </span>mechanical philosophy<span> spread from the </span>physical sciences<span> to </span>natural history<span>. </span>Naturalists<span> began to focus on the variability of species; the emergence of </span>paleontology<span> with the concept of </span>extinction<span> further undermined static views of </span>nature<span>. In the early 19th century </span>Jean-Baptiste Lamarck<span> (1744 – 1829) proposed his </span>theory<span> of the </span>transmutation of species<span>, the first fully formed theory of </span>evolution<span>.</span>
Answer:
Photosynthesis is a process by which green plants turn carbon dioxide and water into food using energy from sunlight.