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The development of Ozone, Oxygen, Cyanobacteria <span>factored into the development of complex organisms. The correct option is the last option.
</span>The end of the Paleozoic Era was signaled by mass extinction of land and sea animals. The correct option is the second option.
Reptiles evolved from an ancestor of amphibians that developed an egg with a strong outer shell that kept it from drying out. The correct option is the first option.
Regulating hormones from the hypothalamus first enter into the hypophyseal portal system.
<h3>Are hormones regulated by the hypothalamus?</h3>
The hormones produced by the hypothalamus and secreted by the neurohypophysis are antidiuretic hormone and oxytocin. Antidiuretic hormone promotes an increase in urine concentration, as it ensures greater reabsorption of water by the kidneys.
It is the hypothalamus that produces the antidiuretic hormone and oxytocin, which will be secreted by the neurohypophysis.
See more about hypothalamus at brainly.com/question/9113672
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Protein act as buffers. Buffers are resistant to pH changes. So when too much acidic components are present in the blood, proteins bind to them so that it does not change the net pH of the blood. Example of this is the hemoglobin or the red blood cells.
