BIO 251 Exam 2 Summer 2016 Medgar Evers College 1. Which of the following pairs
ID: 211620 • Letter: B
Question
BIO 251 Exam 2 Summer 2016 Medgar Evers College 1. Which of the following pairs is mismatched? A. endoderm-bone B. mesoderm-muscle C. ectoderm-skin D. neuroectoderm- nervous system E. neural crest cells- peripheral nervous system, skin pigment, tissues of the face 2. The four primary tissue types are A. epithelial, cartilage, muscle, and brain. B. connective, eipithelial, skin and blood. C. epithelial, connective, muscle and nerve. D. glands, bone, lungs and kidney. E. bone, skin, blood and muscle. 3. Epithelial tissue is characterized by A. tightly packed cells. B. absence of any basement membrane. C. extensive extracellular matrix. D. a rich blood supply. E. both tightly packed cells and a rich blood supply. 4. Epithelial tissue is distinguished from connective, muscular, or nervous tissue by its A. extracellular matrix.Explanation / Answer
1.Ans- A. Endoderm-bone
Endoderm forms the inner lining of some systems and organs such as the liver and pancreas.
Mesoderm develops muscle, connective tissue, dermis and the subcutaneous layer of the skin, bone and cartilage, dura mater, endothelium of blood vessels, red blood cells, white blood cells, and microglia, the kidneys, and the adrenal cortex.
Ectoderm develops into form parts of the skin, the brain, and the nervous system.
Neuroectoderm develops into the nervous system from this tissue
Neural crest develops into the peripheral nervous system (PNS) and smooth muscle cells of the cardiovascular system, pigment cells in the skin, and craniofacial bones, cartilage, and connective tissue.
2.Ans- C.Epithelial, connective, muscle and nerve
There are four types of tissue such as epithelial, connective, muscular, and nervous tissue.
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