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sperm
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human sperm cells Sperm angiosperm life cycle
Follow the development of rice-paddy fish from fertilization to hatching in a laboratory setting
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sperm summary
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Male muscle, man flexing arm, bicep curl.
Facts You Should Know: The Human Body Quiz
Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.
Characteristics of the Human Body
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Follow the development of rice-paddy fish from fertilization to hatching in a laboratory setting
The embryological development of the rice-paddy fish, from fertilization to hatching,...
Video: Encyclopædia Britannica, Inc.

Images

human sperm cells
Sperm cells (magnified 1,000 times).
P&R Photos—age fotostock
Sperm
Fertilization occurs when a sperm cell penetrates and fuses with an egg (ovum).
www.pdimages.com
angiosperm life cycle
Figure 16: Typical angiosperm life cycle (see text).
Encyclopædia Britannica, Inc.
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