Animal Form and Function: Development

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In this video I go over a quick overview of animal development, which starts from the formation of the zygote through the fusion of a sperm and egg cell during fertilization. The zygote then rapidly divides and forms a ball of similar cells called a blastula. Follows next is gastrulation, in which the blastula gets converted into the three germ layers: endoderm, mesoderm, and ectoderm. These three germ layers then form the internal organs.

- The endoderm forms the lungs, thyroid, and pancreas. - The mesoderm helps form the cardiac muscles, skeletal muscles, smooth muscles, red blood cells, and tissues within the kidneys. - The ectoderm produces tissues within epidermis outermost layer of skin , neurons within the brain, and melanocytes producing melanin or pigment producing cells . science biology development animals GermLayers

Timestamps:

- Animal Development begins with the zygote fusion of sperm and egg during fertilization and then forms a blastula: 0:00 - Organogenesis is the formation of internal organs via cell differentiation: 1:49 - Diagram of Endoderm, Mesoderm, and Ectoderm germ layers and the organs they develop into: 3:33 - Cross-section of human skin: 5:06

Full video below:

- Summary: - Full video and playlist: - Notes: - MES Science playlist: .

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