In the short-term, gains in ______ are a good indicator of nutritional status. The best indicator of long-term nutritional status in a child is gains in ______.
What will be an ideal response?
weight; height
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The structure of bacterial chromosomes differs from that of eukaryotic organisms in all of the following except:
a. bacterial chromosomes are typically cir-cular. b. the genes are polycistronic. c. the bacteria have two copies of each chromosome. d. bacterial mutations are easily transmitted or inherited.
____ selection occurs when individuals choose mates with a particular desirable trait
a. Stabilizing b. Sexual c. Artificial d. Asexual e. Disruptive
The level of carbon dioxide in the blood is monitored by nerve tissue. If you exercise strenuously, the increase in cellular respiration consumes oxygen from the blood and produces surplus carbon dioxide removed in the blood. Since this physical exertion requires faster breathing to replenish oxygen supplies and carry away carbon dioxide, the carbon dioxide sensors result in signals from the brain to increase breathing rate. After you have rested, and carbon dioxide levels are back to normal, your breathing rate decreases too. This is an example of
A. a positive feedback loop that stimulates a response opposite to the stimulus. B. a response to a sensory impulse that causes a muscle or gland to react. C. the dynamic interplay between events that tend to change the internal environment and events that tend to keep it the same. D. a negative feedback loop that stimulates a response similar to the stimulus. E. the dynamic interplay between events that tend to change the internal environment and events that tend to increase the changes.
PAMPs are molecules shared by many microorganisms but not present in mammals.
Answer the following statement true (T) or false (F)