Are males actually needed for reproduction? Possibly not, but it is certainly easier with them.
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Different human cells.
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Natural sperm cells.
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Embryonic stem cells.
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Any cell that has gone through meiosis.
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They can fertilize a human egg.
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All of the above.
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Their motility.
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They have a flagellum.
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1%
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I don’t know
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0.1%
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10%
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In this video, students learn about fertility problems in males caused by the lack of sperm production, and techniques to artificially create sperm, as a potential solution. The video raises ethical issues linked to using artificial sperm cells. The questions can be answered on the basis of the information in the clip.
Sperm Cells, Embryonic Stem Cells, Biological Children, Infertility, cellular differentiation, Chromosomes, egg cells, Fertilization, reproduction, genetic disease
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Are males actually needed for reproduction? Possibly not, but it is certainly easier with them.
A measles outbreak due to anti-vaxxer activity, questionable therapists showcased on TV and politicians who do not hesitate to lie and twist facts to serve financial interests. These are only some of the challenges that science had to face in 2018. Is this a lost war?
The answer is blowing in the wind: For the first time, researchers have shown how hurricanes can affect the evolution of lizards –simply by casting those less capable of withstanding the powerful winds into the sea.
