In the presence of saturating amounts of oxaloacetate, the activity of citrate synthase from pig heart tissue shows a sigmoid dependence on the concentration of acetyl-coa, as shown in the graph below. when succinyl-coa is added, the curve shifts to the right and the sigmoid dependence is more pronounced. on the basis of these observations, suggest how succinyl-coa regulates the activity of citrate synthase. why is succinyl-coa an appropriate signal for regulation of the citric acid cycle? how does the regulation of citrate synthase control the rate of cellular respiration in pig heart tissue?

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms