Answer: The correct option is A.
Explanation: there are two processes that takes place in cardiac cycle. These procesesss comprises of complete relaxation and contraction of both the atria and ventricles which usually last for about 0.8 seconds. Starting with the chambers in the diastole, blood flows passively from the veins into the atria and past the atrioventicular valves into the ventricles. Contraction begins in the atria following the depolarization of the atria and blood is pumped into the ventricles. The ventricles begins contraction by raising pressure within the ventricles.
<span>Enzymes act the same way as catalysts; they speed up the reaction. An enzyme which typically digests starch will not act upon the sugar sucrose. This fact indicates that enzymes are specific. This means that enzymes will only act on particular reactions that match their purpose. </span>
Graph B best represents the change observed in the height of the sorghum plants.
Answer:
e. way that the organism grows
Explanation:
During the evolution of animals, there was a great increase in body complexity, emerging specialized organ systems and differentiated structures, which also contributed to the classification of animals.
The protostomies differ mainly in that the blastopore (opening that forms at the stage of the gastrula during embryonic development) will give rise to the embryo's mouth, and the anus will open posteriorly (In deuterostomies, the anus opens first, and the mouth opens later).
Some <u>examples</u> of protostomies are worms, mollusks and arthropods.
