A marine scientist collected data regarding the height of the tide at clearwater beach over the course of a week. The data is shown below. She concludes the tide will always be lowest at night. Is this correct? Day Low Tide High Tide

18-Jan 1:10 AM 6:39 PM
19-Jan 2:11 AM 7:40 PM
20-Jan 3:10 AM 8:37 PM
21-Jan 4:01 AM 9:28 PM
22-Jan 4:44 AM 10:14 PM
23-Jan 5:24 AM 10:55 PM
25-Jan 6:01 AM 11:33 PM

a. Yes: low tide is consistent and will always be lowest after 6pm.
b. Yes; the tide is always lowest between 12 am and 6 am and will continue to follow the pattern.
c. No; low tide advances by 40 to 60 minutes each day.
d. No; the height of the tide is unpredictable from day to day.

The diagram below represents a marine food web and a process that can harm the human population. each circle represents an organism and the smaller dots inside them represent a toxic substance. what is being represented and how does it harm the population? the diagram represents biological half-life, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents biomagnification, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents the process by which different organisms prey upon each other; this can impact the human population by reducing the number of organisms that do not contain the toxin. the diagram represents the way that toxins are metabolized by living organisms, with those at greater trophic levels able to metabolize more efficiently than those at lower levels. this means that those at higher tropic levels are safer for humans to consume compared to the organisms at lower trophic levels.

Explain why ecosystem diversity results in species diversity in a healthy biosphere

The data below simulate what happened to peppered moths in england after the industrial revolution which statement best describes the process that produced one of the emding populations of moths ?light colored moths were selected for on light colored trees