In fetal life, the lungs are not expanded, so most of the blood from the right ventricle is shunted from the pulmonary artery to the aorta through the patent ductus arteriosus. With a few breaths the lungs expand, and blood flows from right ventricle to pulmonary artery into the lungs. Withdrawal of circulating prostaglandin from the mother plus bradykinins released from the expanding lung of the infant cause the ductus to close over a few minutes to hours. The closed ductus remains as the ligamentum arteriosum.
Answer:
Some of Carl Linnaeus classifications of organisms are incorrect because he classified them base on their appearances and actions
Explanation:
Carolus Linnaeus is the father of taxonomy, which is a system of naming and classifying organisms. He classifies organisms base on their appearances and actions instead of their relationships. He invented a system of classification called hierarchical system of classifications. This system include 8 taxa, dormain, kingdom, phylum, class, order, family,genus and species.
<span>Potatoes are also known as tubers and they commonly make up most of the carbohydrate needs that the body can get from food. It is made up of parenchyma tissue that makes the plant have the ability of cloning and low metabolic activity. They are commonly used for experimentation as a “model tissue” because of these characteristics. <span>
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The correct answer is the cytoplasm is divides between the two new daughter cells Cytokinesis is the final stage of the cell cycle in which cytoplasm, the material within the living cell, divides into two daughter cells.
Wetlands<span> Types and Classifications. </span>Wetlands have<span> different characteristics. The most </span>common<span> feature of </span>all wetlands<span> is that the water table (the groundwater level) is very near to the soil surface or shallow water covers the surface for at least part of the year.
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