If element X has 15 protons, it would also have 15 electrons.
The development of a community where no life has existed before is called primary succession.
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Answer:
19-22 days after fertilization of egg by sperm
Explanation:
The heart is the first organ to be formed in a developing embryo. This is because it is a vital organ and responsible for the circulation of blood (with oxygen and nutrients) to the other developing tissues. It begins to be formed at around 18 days from fertilization and begins to function after day 21.
The difference is in their chemical structure. Simple carbohydrates have a simpler molecular form, and as such are super easy to digest and fairly quick form of energy. Sucrose and Fructose are examples of such simple carbohydrates
Complex Carbohydrates, form a larger chain, and come packed with fiber. They have more advanced components that offer better health benefits (fiber) and are digested for more energy. Additionally Complex carbs are used by organisms to store large amounts of backup energy. Examples of such things include Starch (plants) and Glycogen (animals and Humans).
A. hyperpnea - required so the body can meet the metabolic demand of tissues
