Which of the following cells develops into a human embryo?A. TrophoblastB. Extraembryonic membraneC. Inner cell massD. CumulusE. All of the above
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Which of the following cells develops into a human embryo?
A. Trophoblast
B. Extraembryonic membrane
C. Inner cell mass
D. Cumulus
E. All of the above
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- Which of the following gives rise to the skin cells? a. ectoderm b. endoderm c. mesoderm d. none of the aboveWhich of the following extra-embryonic membranes becomes the embryonic portion of the structure involved in waste and nutrient exchange between the embryo and the mother? Select one: A. Amnion B. York sac C. Chorion D. TrophoblastWhich of the following consists of both fetal and maternal tissues? (a)umbilical cord (b) placenta (c) amnion (d) allantois (e) yolk sac
- All of the cell types of an adult vertebrate develop from three primary embryonic germ cell layers, e.g. skin epithelium originates from ____ and intestinal epithelium from ____. A)ectoderm, endoderm B)ectoderm; ectoderm C)endoderm; endoderm D)endoderm; ectodermWhich of the following correctly identifies the different phases of human development? Select one: a. Weeks 1 to 8 are called the fetal development, and weeks 9 to 39 are called the embryonic development. b. Weeks 1 to 8 are called the embryonic development, and weeks 9 to 39 are called the fetal development. c. The 1st trimester is fertilization and mitosis, and the 2nd and 3rd trimesters involve differentiation. d. The 1st trimester is called the embryonic development, the 2nd trimester is called the fetal development, and the 3rd trimester is when the baby grows to gain more weight.Which of the following structure develops into only the fetus? A. Blastocyte B. Zygote C. Trophoblast D. Inner cell mass
- Which of the following extra-embyonic membranes become the embryonic portion of the structure involved in waste and nutrient exchange between the embryo and the mother? Select one: A. Amnion B. york sac C. Chorion D. AllantoisThe approximately nine month. Between fertilization and birth or transforms a single cell into a complete human being. Test your knowledge of the events that occur in each stage by highlighting the events of the pre-embryonic stage and pink the events of the embryonic stage and blue and the events of the fetal stage in yellow.Which of the following correctly identifies the different phases of human development? Select one: A. The 1st trimester is fertilization and mitosis, and 2nd and 3rd trimesters involve differentiation. B. Week 1 to 8 are called fetal development, and weeks 9 to 39 are called embryonic development. C. The 1st trimester is called embryonic development, the 2nd trimester is called fetal development, and the 3rd trimester is when the baby grows to gain more weight. D. Week 1 to 8 are called embryonic development, and weeks 9 to 39 are called fetal development.
- Which developmental stage is mismatched? a. second week—implantation b. third week—heart development begins c. fourth and fifth week—limb buds appear d. sixth through eighth week—all organ systems present e. None of these stages are mismatched.which germ layer (tissue) gives rice to our nervous system and outer coverings. a) endotherm b) ectoderm c) mesoderm d) endodermWhich of the following does NOT happen in the germinal period? a. dividing mass of cells travels to the uterus b. developing organs can be affected by toxins passing through the placenta c. mass of cells form a hollow ball d. cells begin to differentiate.
