Ques:Q: Which temperatures cause particles of reactants to have more energy? Read this paragraph and choose the correct option from the provided answers: When the temperature of reactants is higher, the rate of the reaction is faster. At higher temperatures, particles of reactants have more energy, so they move faster. They are more likely to bump into one another and to collide with greater force. For example, when you fry an egg, turning up the heat causes the egg to cook faster. The same principle explains why storing food in a cold refrigerator reduces the rate at which food spoils (see Figure below ). Both food frying and food spoiling are chemical reactions that happen faster at higher temperatures. Choices: - non-existant - reducing - lower - higher A:

Ans:higher
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Ques:Q: What part of blood releases clotting factors? Read this paragraph and choose the correct option from the provided answers: Platelets ( Figure below ) are very small, but they are very important in blood clotting. Platelets are not cells. They are sticky little pieces of larger cells. Platelets bud off large cells that stay in the bone marrow. When a blood vessel gets cut, platelets stick to the injured areas. They release chemicals called clotting factors, which cause proteins to form over the wound. This web of proteins catches red blood cells and forms a clot. This clot stops more blood from leaving the body through the cut blood vessel. The clot also stops bacteria from entering the body. Platelets survive in the blood for ten days before they are removed by the liver and spleen. Choices: - hemoglobin - white blood cells - erythrocytes - platelets A:

Ans:platelets
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Ques:Q: What is the name for the inner lining of the uterus? Read this paragraph and choose the correct option from the provided answers: Choices: - the uterine shell - the epidermis - cuticle - the endometrium A:

Ans:the endometrium
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Ques:Q: Vitamin d is made in the skin when it is exposed to what? Read this paragraph and choose the correct option from the provided answers: Vitamins are organic compounds that the body needs in small amounts to function properly. Humans need 16 different vitamins. Six of them are listed in Table below . Vitamin D is made in the skin when it is exposed to sunlight. Bacteria that normally live in the gut make vitamins B12 and K. All other vitamins must come from food. The table shows good food sources of the vitamins. Choices: - darkness - water - dirt - sunlight A:

Ans:
sunlight
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