Answer the following questions true (T) or false (F)
1. Lipid A can cause septic shock.
2. Lymph is produced in the lymph nodes.
3. Small doses of antimicrobial drugs are effective in treatment of the late stages of Borrelia infection because the microbe is extremely susceptible.
1. TRUE
2. FALSE
3. FALSE
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Many Bacteria isolated from nature are natural lysogens
Indicate whether the statement is true or false.
Describe the three stages of labor
What will be an ideal response?
48. If, according to one hypothesis, Najash evolved from terrestrial, burrowing snakes, which of the following best reflects the adaptive or selective benefit for other snakes to have lost their pelvis and hindlimbs?
A. In situations of flooded burrows and land surface, the snakes could swim better without hindlimbs and pelvis. B. Grasping prey would have been easier and more efficient without the hindlimbs and pelvis. C. Chasing prey through tunnels and burrows could be easier without the function and obstruction of hindlimbs and pelvis. D. Chasing prey would have been easier, because the snakes would be much faster without hindlimbs and pelvis. E. Burrowing snakes would be better able to dig their burrows without the hindlimbs and pelvis.
The leading hypothesis for the origin of the jaw proposes that ______.
A. it resulted from mutations in the developmental regulatory genes that determine the morphology of the rudimentary vertebral elements B. it first occurred in the hagfish and the lamprey C. it first occurred in the early tetrapods D. it resulted from mutations in the developmental regulatory genes that determine the morphology of the gill arches