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| an early stage in the development of an organism |
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| a stage in the development of an organism that follows the embryo stage |
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| one of the units that make up a chromosome; genes determine the traits an offspring inherits from its parent or parents |
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| a chemical substance that acts as a messenger, causing a change in organs and tissues in the body |
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| the state of physical development when a person becomes capable of producing offspring |
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| reproduction that involves the joining of a male sex cell and a female sex cell |
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| a threadlike structure in the nucleus of a cell; it carries the genes that determine the traits an offspring inherits from its parent or parents |
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| a cycle of approximately 28 days during which an egg is released by the ovary and, if not fertilized, leaves the body with other tissue and blood |
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| a gene that has control over how a trait is expressed |
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| a gene that is able to control how a trait is expressed only when paired with another recessive gene |
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| the process by which a sperm and an egg unite to form a cell that will develop into a new individual |
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| a gland that produces hormones and releases them directly into the bloodstream |
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| What is the heart is responsible for? |
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| Providing oxygen and nutrients to our cells and carrying away waste from these active cells. |
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| The heart is an __________ muscle. |
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| The _________ separates the two sets of chambers of the heart. |
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| Beginning at the left side of your heart, fresh, clean _____________ is pumped around our bodies. |
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| The cells creates __________ and other wastes that must be removed to keep the cells healthy. |
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| The blood is responsible for picking up waste, delivering it to the _________ where, except for the carbon dioxide, it is removed from the blood. |
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| The ________ with its load of carbon dioxide returns to the right side of the heart. |
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| The blood is then pumped to the ________ to get rid of the carbon dioxide and to pick-up fresh oxygen. |
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| The heart beats on average ________ times per minute. |
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| An adult heart pumps _________ of blood daily. |
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| It takes __________ to pump blood to every cell in your body. |
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| The sound in the heart comes from the _______ shutting inside the heart. |
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| The most common place used to find the pulse is the _________. |
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| What can you do to keep your heart healthy? |
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Definition
1. Exercise at least 15-20 minutes a day
2. Eat healthy foods
3. Stay away from smoking |
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