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Questions and Answers
During which period does the zygote undergo rapid cleavage cell divisions?
During which period does the zygote undergo rapid cleavage cell divisions?
What is the structure formed by the blastomeres within 72 hours of fertilization?
What is the structure formed by the blastomeres within 72 hours of fertilization?
Which layer of the blastocyst will later develop into the three germ layers of the embryo?
Which layer of the blastocyst will later develop into the three germ layers of the embryo?
What is the function of the trophoblast in the blastocyst?
What is the function of the trophoblast in the blastocyst?
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When does implantation of the blastocyst occur?
When does implantation of the blastocyst occur?
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Which extraembryonic membrane surrounds all other extraembryonic membranes and develops into the fetal part of the placenta?
Which extraembryonic membrane surrounds all other extraembryonic membranes and develops into the fetal part of the placenta?
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From which layer do the yolk sac and future gut develop?
From which layer do the yolk sac and future gut develop?
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Which type of connective tissue has a loose arrangement of protein fibers and contains fibrocytes and fibroblasts?
Which type of connective tissue has a loose arrangement of protein fibers and contains fibrocytes and fibroblasts?
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What is the main function of adipose tissue?
What is the main function of adipose tissue?
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Which type of dense connective tissue has fibers arranged irregularly?
Which type of dense connective tissue has fibers arranged irregularly?
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What is the main component of the matrix in cartilage?
What is the main component of the matrix in cartilage?
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Which type of bone contains a lattice of thin threads called trabeculae?
Which type of bone contains a lattice of thin threads called trabeculae?
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What is the main component of the matrix in blood?
What is the main component of the matrix in blood?
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Which type of muscle tissue is striated?
Which type of muscle tissue is striated?
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What is the main function of nervous tissue?
What is the main function of nervous tissue?
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What is the main function of cutaneous membranes?
What is the main function of cutaneous membranes?
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Which type of cell junction allows for ions and small molecules to freely pass between neighboring cells?
Which type of cell junction allows for ions and small molecules to freely pass between neighboring cells?
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Which type of epithelial tissue covers the body surface and lines the body cavities?
Which type of epithelial tissue covers the body surface and lines the body cavities?
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Which type of epithelial tissue is more than one layer thick and provides physical, chemical, and biological protection?
Which type of epithelial tissue is more than one layer thick and provides physical, chemical, and biological protection?
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Which type of epithelial tissue has cells that reach different heights and nuclei at different levels, but all cells sit on the basement membrane?
Which type of epithelial tissue has cells that reach different heights and nuclei at different levels, but all cells sit on the basement membrane?
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Which type of epithelial cell is flat and fish-scale-like, and is used for rapid diffusion or filtration of substances, or for resisting abrasion?
Which type of epithelial cell is flat and fish-scale-like, and is used for rapid diffusion or filtration of substances, or for resisting abrasion?
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Which type of epithelial cell is cube-shaped and is used for secretion and absorption, such as in the kidneys?
Which type of epithelial cell is cube-shaped and is used for secretion and absorption, such as in the kidneys?
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Which type of epithelial cell is column-shaped, tall and thin, and is used for secretion and absorption of mucous, enzymes, and other substances, such as in the digestive tract?
Which type of epithelial cell is column-shaped, tall and thin, and is used for secretion and absorption of mucous, enzymes, and other substances, such as in the digestive tract?
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Which of the following is true about the allantois?
Which of the following is true about the allantois?
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During the embryonic period, which of the following develops into the nervous system and the epidermis of the skin?
During the embryonic period, which of the following develops into the nervous system and the epidermis of the skin?
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Which period of development is characterized by the almost full development of general human characteristics and major organ systems?
Which period of development is characterized by the almost full development of general human characteristics and major organ systems?
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What is the difference between genotype and phenotype?
What is the difference between genotype and phenotype?
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Which of the following is an example of homozygous alleles?
Which of the following is an example of homozygous alleles?
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What is the probability of offspring having curly hair if one parent has heterozygous alleles for curly hair (Cc) and the other parent has straight hair (cc)?
What is the probability of offspring having curly hair if one parent has heterozygous alleles for curly hair (Cc) and the other parent has straight hair (cc)?
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Which tissue type is responsible for sensory and signaling functions?
Which tissue type is responsible for sensory and signaling functions?
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