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Q: What are the four well-known states of matter? Read this paragraph and choose the correct option from the provided answers: The photo above represents water in three common states of matter. States of matter are different phases in which any given type of matter can exist. There are actually four well-known states of matter: solid, liquid, gas, and plasma. Plasma isn't represented in the iceberg photo, but the other three states of matter are. The iceberg itself consists of water in the solid state, and the lake consists of water in the liquid state. Choices: - solid, liquid, gas, and wave - solid, liquid, plasma, and metal - solid , imine , gas , and plasma - solid, liquid, gas, and plasma A:
(Answer)
solid, liquid, gas, and plasma

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Q: Where is the only place an electric charge can be found? Read this paragraph and choose the correct option from the provided answers: Electric charge is found only in a conductor. Choices: - translator - ion - neuron - conductor A:
(Answer)
conductor

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Q: On the ventral side of the embryonic disc, opposite the amnion, cells in the lower layer of the embryonic disk (the hypoblast) extend into the blastocyst cavity and form this? Read this paragraph and choose the correct option from the provided answers: On the ventral side of the embryonic disc, opposite the amnion, cells in the lower layer of the embryonic disk (the hypoblast) extend into the blastocyst cavity and form a yolk sac. The yolk sac supplies some nutrients absorbed from the trophoblast and also provides primitive blood circulation to the developing embryo for the second and third week of development. When the placenta takes over nourishing the embryo at approximately week 4, the yolk sac has been greatly reduced in size and its main function is to serve as the source of blood cells and germ cells (cells that will give rise to gametes). During week 3, a finger-like outpocketing of the yolk sac develops into the allantois, a primitive excretory duct of the embryo that will become part of the urinary bladder. Together, the stalks of the yolk sac and allantois establish the outer structure of the umbilical cord. The last of the extra-embryonic membranes is the chorion, which is the one membrane that surrounds all others. The development of the chorion will be discussed in more detail shortly, as it relates to the growth and development of the placenta. Choices: - embryo sac - neural sac - algae sac - yolk sac A:
(Answer)
yolk sac