| A | B |
|---|
| muscles found in the heart | cardiac |
| liquid part of the blood | plasma |
| cell parts that help blood clot | platelets |
| blood cells that carry oxygen | red blood cells |
| blood vessels that carry blood away from the heart | arteries |
| organ where blood picks up oxygen | lungs |
| upper chambers of the heart | atria |
| smallest blood vessels | capillaries |
| most digestion occurs here | small intestine |
| chemicals used to digest food | enzymes |
| "hair-like" projections in the small intestine | villi |
| where digestion begins | mouth |
| what large intestine absorbs | water |
| job of gall bladder | stores bile |
| diaphragm goes ____ when you exhale | up |
| prevents food from entering the trachea | epiglottis |
| waste product you exhale | carbon dioxide |
| tissue that holds bones together in joints | ligaments |
| involuntary muscles that line internal organs | smooth |
| number of bones in human skeleton | 206 |
| makes bones hard | minerals |
| job of bone marrow | produce red blood cells |
| tissue that attaches muscles to bones | tendons |
| when women lose the ability to reproduce | menopause |
| female 28 day reproductive cycle | menstrual cycle |
| supplies food and oxygen to the developing embryo | placenta |
| sperm joins with the egg | fertilization |
| female sex cell | egg |
| produces sperm cells | testes |
| baby (fetus) develops in this organ | uterus |
| twins from the same egg and sperm | identical |
| the zygote implants in this organ | uterus |
| visible characteristics of an organism | phenotype |
| genes of a hybrid | Yy |
| scientist who studied inheritance in pea plants | Gregor Mendel |
| crossing two hybrid, tall plants produce what % tall offspring | 75% |
| chromosomes that produce a male | X Y |
| number of chromosomes in a human body cell | 46 |
| chromosomes that carry sex-linked traits | X |
| the "weaker" of the 2 traits | recessive |
