Q: In sexual reproduction, what is the name of the gamete cell the male must contribute? Read this paragraph and choose the correct option from the provided answers: Sexual reproduction is more complicated. It involves two parents. Special cells called gametes are produced by the parents. A gamete produced by a female parent is generally called an egg . A gamete produced by a male parent is usually called a sperm . An offspring forms when two gametes unite. The union of the two gametes is called fertilization . You can see a human sperm and egg uniting in Figure below . The initial cell that forms when two gametes unite is called a zygote . Choices: - plasma - spore - ova - sperm A:
sperm

Q: Which muscular organ pumps blood all around your body? Read this paragraph and choose the correct option from the provided answers: When you think of muscles, you might think of biceps and the external muscles you see in a bodybuilder. However, some muscles are found deep inside your body. The heart, for example, is a very muscular organ. It has to pump blood all around your body. Choices: - stomach - lungs - pancreas - heart A:
heart

Q: Hydrogen and helium are specifically involved as reactants in what nuclear reaction that is useful for making energy? Read this paragraph and choose the correct option from the provided answers: The use of nuclear fusion for energy has several pros. Unlike nuclear fission, which involves dangerous radioactive elements, nuclear fusion involves just hydrogen and helium. These elements are harmless. Hydrogen is also very plentiful. There is a huge amount of hydrogen in ocean water. The hydrogen in just a gallon of water could produce as much energy by nuclear fusion as burning 1,140 liters (300 gallons) of gasoline! The hydrogen in the oceans would generate enough energy to supply all the world's people for a very long time. Choices: - destructive fusion - radioactive fusion - nuclear fission - nuclear fusion A:
nuclear fusion