Do jellies have exoskeleton?

Do jellies have exoskeleton? Insects, crustaceans, and many other invertebrates have a hard outer case called an exoskeleton. Slugs, leeches, and jellyfish have soft bodies and no exoskeleton. Which creature has neither a skeleton nor an exoskeleton? A hummingbird, like all other birds, has an endoskeleton. It is a skeleton that is on the inside […]

Why is a gulf important to the earth?

Why is a gulf important to the earth? Vast deposits of petroleum in this region make the Persian Gulf strategically important. Middle Eastern countries depend on the gulf for trade and for access to the Indian Ocean. All countries that consume oil from the region, including the U.S., have a vital interest in keeping the […]

Did Britain almost lose Falklands war?

Did Britain almost lose Falklands war? Most historians now agree that Britain could never have won the war for what people in 1982 still called the Falkland Islands. To expect victory after an amphibious assault on a handful of tiny rocky islands, thousands of miles from home, with supply lines stretched over the South Atlantic, […]

Can drinking cooking oil kill you?

Can drinking cooking oil kill you? Consuming vegetable oil increases your risk of death more than physical inactivity and heavy drinking, and for all the attention that red meat and sodium get, eating vegetable oil is 12 to 20 times more deadly. Is it dangerous to drink vegetable oil? Vegetable oils are rich in polyunsaturated […]

Why is it important for teachers to study developmental psychology?

Why is it important for teachers to study developmental psychology? Developmental knowledge can also help you teach learners who are experiencing learning and adjustment problems. Developmental psychology can help you identify the many forces that affect growth, maturation, learning, and development and that affect your learners’ behavior. Why the study of development is really important […]

What happens if engine oil gets too hot?

What happens if engine oil gets too hot? When a car’s internal heat causes a chemical reaction in the motor oil, which causes the oil’s viscosity to change, thermal breakdown is among the most damaging effects. Motor oil will degrade if the engine warms up beyond a certain temperature threshold. Should I let my engine […]

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