In science class, maria observes that a white-colored flower has shades of red when it’s watered with red-colored water. she forms a hypothesis that the color reaches the flower through the stem. what should maria do to confirm the hypothesis?

There are six elements that make up most of the human body. which of the following is not one of these six elements?

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations