Ques:Most invertebrates have a nervous system, and jellyfish and insects are invertebrates. Given these facts, what has a nervous system among the following options: - fur seals - Jellyfish - Rocks - chickens - animals - Air - h2o - elephants

Ans:Jellyfish
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Ques:When a river floods , that river deposits soil in flood plains, and soil erosion harms farm and grazing lands and increases flooding and desertification. Given these facts, when a river floods, that river harms what among the following options: - most organisms - Basic units of the plant body. - streams and volcanoes - mountains and lakes - farm and grazing lands - oceans and ponds - swamp vegetation - Plant growth is reduced

Ans:farm and grazing lands
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Ques:Sediment is formed by weathering, and sand and mud are examples of sediments. Given these facts, what does weathering do among the following options: - protect them - form sand - form plants - It expands - form snow - form fossils - Metling snow - watershred

Ans:form sand
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Ques:Adult echinoderms have radial symmetry, and all animals with radial symmetry live in water. Given these facts, what lives in water among the following options: - adult echinoderms - fur seals - tortoises - the sun - crocodiles - fisherman - humans - salamanders

Ans:
adult echinoderms
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