From the data, the manatee population obviously increased after the regulations went into affect and the deaths due to watercraft reduced from 25 to 8 after the regulations were put into effect. The population increased by 165% from 1980=-2010 and the drop in deaths due to watercraft decreased by
68%.So this is not a direct correlation but at least it shows that the watercraft deaths decreased significantly. Since the population increased at a greater rate then it may be that more females were spared so could mate and give birth to that many more manatees.
The serous fluid within the pericardial cavity works to lubricate the membranes of the serous pericardium.
<h3>The pericardial cavity</h3>
The pericardial cavity is a space that is enclosed by the two layers of serous pericardium around the heart.
The pericardium is a thin, two-layered, fluid-filled sac that covers the outer surface of the heart. it is divided into 2 namely:
The serous fluid which is also called pericardial fluid helps to decrease friction between the pericardial layers. This is because, they lubricate the membranes of the serous pericardium.
Learn more about the heart here:
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We know that animal populations exposed to higher concentrations of radioactive activity, often suffer deleterious genetic mutations. Thus, the answer would be <u>B.) a higher than average mutation rate.</u>
Because it will take in too much water by osmosis. The water outside the cell will want to move in because during osmosis water cells move from an area of high concentration to an area of lower concentration.
Answer:
Double fertilization gives stimulus to the plant that results in the development of the ovary into fruit and ovules into the seed.
Explanation: