A population of birds on the coast of California range in size from 9 cm to 15 cm. Another population of the birds exists on the distant island of Catalina off the same coastline, but all of these birds are 15 cm. What is the most likely explanation for the difference in sizes among the birds?

If you cured one cancer , would be able to cure them all ? Explain or why not.

in a survey of 80 football players who committed to play in a particular division I conference, 64 said they would work out in their high school weight rooms in the summer before college. the margin of error for the survey was 6%. a census of football players in the conference showed that 59% worked out at their high schools. What can one conclude

how is the cell wall differnt from the cell membrane in plants

The life cycle of the aphid Megoura viciae is very complicated. Outside temperature influences how many males and females are born. At low or high temperatures, such as in winter and summer, females are born. Males are born at medium temperatures, which occur in the spring and fall. What are the survival chances of this species if the seasons become