<span>#1) Which of the following is an example of a trend?
Answer: Out of all the options that are available the one that represents an example of a trend in science is the gradual warming of earth's atmosphere over time. The reason being that a trends is the most results that are presented going towards one direction opposed to another.
#2) The fact that the sun rises and sets at different times during the day depending on the time of year is an example of a data trend.
Answer: The statement presented above is false. The best way to represent a data trend is to look at the chart and look at the data points and see how they connect. The best question to use when identifying a trends is Why is it happening. A trend is often found when data consistently increases or decreases in response to a variable.
#3) Predictable amounts of rainfall in each of the 4 seasons is an example of a pattern.
Answer: The statement shown above is absolutely true. Because as stated in the statement it is predictable.
#4) A trend exists when data shows consistent regular repetitive form.
Answer: This statement is False. As previously explained a trend is when data consistently increases or decreases in response to a variable. A pattern is when data shows consistent, regular, and repetitive form.
#5) What will happen to the number of airplanes that fly over the pond as the amount of pollution increases?
Answer: Since the amount of pollution in the pond and the number of planes that fly by are not related the number of airplanes that fly over the pond will stay the same or will respond randomly.
#6) This is an example of what type of relationships?
Answer: According to the scenario that is presented above this would be a direct type of relationship since the number of rabbits in a community goes up the number of foxes in the same community also goes up.
#7) What kind of relationship do the shade of red and the chemicals in the tree have?
Answer: This case would also be a direct type of relationship, because as the chemicals in the tree increases, the leaves of a tree turn a deeper shade of red.
<span>I hope it helps, Regards.</span></span>
<span>Scientists count a species population by first knowing the population in a certain area or small geographical sample location then multiply the result by the total area. This method is often used by scientists while conducting a study of any species .</span>
Answer: A vascular bundle is a part of the transport system in vascular plants. A strand of conducting vessels in the stem or leaves of a plant, typically with phloem on the outside and xylem on the inside.
Hope this helps you!
Answer:
In osmosis, water moves from areas of low concentration of solute to areas of high concentration of solute.So osmosis only occurs with a semipermeable membrane, and even with the membrane some water will move both sides. MORE water will move up the concentration gradient, thus there is a net flow up the gradient.
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Answer:
When you sit on a plane for 6 hours without moving, blood accumulates in your veins, and the moment you get up, gravitational forces affect venous return, cardiac output, blood pressure, and venous pressure. That way, when you're sitting on a plane, the gravitational force is the same at the upper and lower extremities, such as the chest, abdomen, and legs, causing venous blood pressure and volume to be evenly distributed throughout the body. However, when one gets up, one becomes dizzy because of abnormal regulation of blood pressure. This is because gravity causes blood to accumulate in the lower extremities (veins of the legs and trunk). This lowers the blood pressure and the blood that the heart pumps. By causing blood to accumulate in the lower extremities, and as venous compliance increases, the veins expand with blood that causes the volume of blood to shift in the veins. This increases the volume and venous pressure in the lower extremities when standing. And the volume of thoracic venous blood is less and less central venous pressure. This leads to a decline in stroke volume. Cardiac output and mean arterial pressure also decrease as left ventricular stroke volume decreases, reducing pulmonary venous return. Decreased standing blood pressure, referred to as orthostatic or postural hypotension. Thus, lowering blood pressure decreases cerebral blood flow, which means less range of blood in the brain causing dizziness.
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