cleavage

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Introduction References & Edit History Related Topics

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See time-lapse microphotography of blastomeres created by mitotic cleavage of embryonic cells

first stages of human development

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Candles Burning On Table In Church

What Is the Most Widely Practiced Religion in the World?

Flags of the countries of the world (flagpoles).

How Many Countries Are There in the World?

Statue of Nostradamus

Nostradamus and His Prophecies

Chinese pictograph, calligraphy tablet of Huang Tingjian, a famous calligrapher in Ancient Song Dynasty. The background of Chinese cultural elements.

The World’s 5 Most Commonly Used Writing Systems

Ice Sledge Hockey, Hockey Canada Cup, USA (left) vs Canada, 2009. UBC Thunderbird Arena, Vancouver, BC, competition site for Olympic ice hockey and Paralympic ice sledge hockey. Vancouver 2010 Olympic and Paralympic Winter Games, Vancouver Olympics

10 Best Hockey Players of All Time

Marriage. A couple getting married during a church wedding ceremony. (religion, ceremony, bride, groom)

The Seven Sacraments of the Roman Catholic church

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

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Photos and Videos

first stages of human development

See time-lapse microphotography of blastomeres created by mitotic cleavage of embryonic cells

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Topics

macromere mitosis blastocyst blastula morula meroblastic cleavage blastomere hypoblast blastoderm micromere sexual differentiation gestational age implantation segmentation induction histogenesis organogenesis neural crest umbilical cord notochord