Answer:
A
Explanation:
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Answer:
C. About 18 percent of the variation in blood pressure can be explained by a linear relationship between blood pressure and caffeine consumed.
Explanation:
Here, r = 0.428
∴ We can say it will give a positive curve, as 0.428 indicates it is a positive correlation.
Though the amount of correlation is low, still it is positive and more than 0.4
So, nearly about 18% of the variation in the blood pressure can be observed by the consumption of caffeine water. As consumption of caffeine water and blood pressure is both increasing so we can say that r= 0.428 will give a positive linear curve.
Hi! The answer to your question would be D, It is a seeded vascular plant. Hope this helps.
The answer is A. This is because, in a new environment, mostly of new bare rock can only support plants such as algae and moss (pioneer species). However, as they weather the rocks and soil begin to form, plants such as pteridophytes (ferns) begin to emerge. Eventually, when the soil is deep enough, higher plants such as shrubs and grass emerge and over time trees can grow.