Эмбрионалдық даму кезеңдері: бластула, гаструла, нейрула.

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How are you?

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Топқа бөліну https:// castlots.org/razdelit-na-gruppy/

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Үй тапсырмасын тексеру https://www.plickers.com/classes/5cb376fa5bd65b0004ba a538

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How does a microscopic single celled zygote develop into a baby?

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Embryonic development May be it is a circle?

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Aim : - learn stages of embryonic development. - describe tissues and organs that are formed from different germ layers.

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Birthmark Development Division Fertilization Fraternal twins Gender Identical twins Layer Organogenesis Blastula Gastrula Ectoderm Endoderm Mesoderm TRANSLATION https://quizlet.com/ 391555900/embryonic- development-flash-cards/

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WATCH A VIDEO and ANSWER to VIDEO questions. (Working by pairs) http://tiny.cc/embryov id

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Video questions (Do it by pairs) ANSWERS True or False. Put which one is True or False. 1-Sperm cell fuse with egg cell and form zygote. ___ T 2-Only 20 sperm cells will come by fallopian tube near egg cell. ___ F 3-Male nuclei and female nuclei will fuse, but one of them will be destroyed. ___ F 4-After a cleavage, blastocyst is formed. ___ T 5-Blastocyst is formed in 20 days. ___ F 6-Inner cell mass located in blastocyst. ___ T

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Fill in the blanks. 1-ICM is means as – Inner Cell Mass. 2-Outer cells of embryo give rise to placenta and other supporting tissues. 3- Embryo implants into the wall of the uterus . 4- Blue inner cell mass cells form a disc . 5- Important stage when the 3 beginning layers of the embryo so called germ layers are formed.

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6-Embryo germ layers are called – Endoderm, Mesoderm and Ectoderm. 7-After forming Neural tube in Embryo will be appendages . 8-Appendages start to bud out. 9-Head forming the eye and eventually we get a small embryo . 10-Some month later it will be born a young baby .  

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Cut & MATCH all words with Germ layers

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ANSWERS - ACTIVITY – GERM LAYERS ECTODERM   Brain Nervous tissue Pigment cells Skin cells Epidermis cells Spinal cord Epidermis Nerves   MESODERM   Heart Kidney Blood Skeleton Muscle Biceps muscle Bone Triceps muscle     ENDODERM   Endocrine glands Large intestine Cardiac muscle Vertebrae Finger bones Lungs Gastrointestinal tract Throat Small intestine Stomach Esophagus Trachea Alveoli

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Activity - Make a Model of Embryonic development by plasticine - Each group show each other.

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Activity (continue) Let’s make a model of embryonic development! Divide into 7-8 groups! 1. Take plasticine. Make a ball that is 10 cm in diameter. It is a zygote. 2. Divide and make two balls but they should be 5 cm in diameter and join them. 3. Divide again and make four cells that are 2.5 cm in diameter. Join them. Continue to work till you have 32- celled blastula. 4. Make a gastrula with obvious three germ layers using different colors for each layer. Which one is Morula?

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https://quizlet.com/391555900/match Жаңа терминдердің меңгерілу деңгейін тексеру

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Рефлексия

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Үйге тапсырма Тақырыпты оқу. «Эмбриология саласындағы ең соңғы жаңалықтар» тақырыбында шағын хабарлама жасау.

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