Q: What orbits an atoms' nucleus? Read this paragraph and choose the correct option from the provided answers: An atom has negatively-charged electrons in orbit around its nucleus. Choices: - neutrally charged ions - positively charged protons - isotopes - negatively charged electrons A:
negatively charged electrons
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Q: Storm surge is very high water located in the low pressure eye of what? Read this paragraph and choose the correct option from the provided answers: So much rain falling so fast causes some of the damage from a hurricane. But a lot of the damage is caused by storm surge. Storm surge is very high water located in the low pressure eye of the hurricane. The very low pressure of the eye allows the water level to rise above normal sea level. Storm surge can cause flooding when it reaches land ( Figure below ). High winds do a great deal of damage in hurricanes. High winds can also create very big waves. If the large waves are atop a storm surge, the high water can flood the shore. If the storm happens to occur at high tide, the water will rise even higher. Choices: - earthquakes - eruptions - tornados - hurricanes A:
hurricanes
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Q: Female monotremes share what external opening with reptiles and birds? Read this paragraph and choose the correct option from the provided answers: Female monotremes lack a uterus and vagina. Instead, they have a cloaca with one external opening, like the cloaca of reptiles and birds. The opening is used to excrete wastes as well as lay eggs. The eggs of monotremes have a leathery shell, like the eggs of reptiles. Female monotremes have mammary glands but not nipples. They secrete milk to feed their young from a patch on their belly. This form of reproduction is least risky for the mother but most risky for the offspring. Choices: - urethra - vagina - anus - cloaca A:
cloaca
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Q: What helps the plasma membrane keep its shape? Read this paragraph and choose the correct option from the provided answers: The plasma membrane also contains other molecules, primarily other lipids and proteins. The green molecules in Figure above , for example, are the lipid cholesterol. Molecules of cholesterol help the plasma membrane keep its shape. Many of the proteins in the plasma membrane assist other substances in crossing the membrane. Choices: - molecules of carbohydrates - molecules of oxygen - cytoplasm - molecules of cholesterol A:
molecules of cholesterol
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