Item EN055001: Most species living today did not exist at the time life began.
Which of the following is TRUE about the species that are living on earth today?
- All species living today have existed since the time life began.
- Most species living today have existed since the time life began, but a few have appeared more recently.
- Most species living today did not exist at the time life began.
- There is no way of finding out whether all, most, or only a few species living today existed since the time life began.
- Distribution of Responses
![Chart showing distrubtion of responses for Item EN055001](http://chart.apis.google.com/chart?chs=265x180&cht=bvg&chf=bg,s,00000000&chco=76A4FB|76A4FB|339933|76A4FB&chds=0,100&chd=t:8,22,48,22&chxl=0:|A|B|C|D&chxt=x,y&chbh=a&chbw=a&chm=N*f0*%,000000,0,-1,11,,e::5&filename=EN055001-dist.png)
- Students Responding Correctly
Group | Correct | Total | Percent |
---|---|---|---|
Overall | 1462 | 3047 | 48% |
Grades | |||
6–8 | 878 | 1924 | 46% |
9–12 | 584 | 1123 | 52% |
Gender | |||
Male | 719 | 1432 | 50% |
Female | 715 | 1557 | 46% |
Primary Language | |||
English | 1316 | 2707 | 49% |
Other | 112 | 264 | 42% |