Olney was born 2 months premature. According to this chapter, what respiratory problem is he most likely to have, and what can be done to correct it?
What will be an ideal response?
Because Olney is premature, he is more likely than other newborns to have respiratory distress syndrome, or RDS. This condition is due to the lack of sufficient surfactant, which is added to the fetal lungs in the eighth month of pregnancy. It is possible to use mechanical respirators and to administer surfactant (a phospholipid) to infants with this problem.
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Describe the makeup of the phospholipid bilayer. Include molecular orientation and proteins as well
What will be an ideal response?
All animals except sponges have _____, groups of cells that work together to perform a specific function
Fill in the blank(s) with the appropriate word(s).
What is the correct order of steps of morphogenesis in Drosophila melanogaster?a. Gap genes divide the body into broad regionsb. Establishment of anterior / posterior axesc. Homeotic genes determine which body parts arise from each regiond. Pair-rule genes are activated in order to develop a preliminary segmentation pattern
A. a - b - c - d B. a - d - c - b C. a - d - b - c D. b - a - d - c E. b - a - c - d
A series of interconnected bones that form the backbone of all mammals, fishes, reptiles, and birds is the ________
A) scapula B) vertebral column C) femur D) mandible