Answer all the questions

Dependent variable- bird species
Independent variable- years being studied
Title- My Track on Endangered Birds
Conclusion on WHOOPING CRANE POPULATION- the population of this species increased from 1950-1970 by 54. Since they were being protected, they were able to offspring and so species expanded.

Conclusion on CALIFORNIA CONDOR POPULATION- sadly, this species was still being hunted by hunters and the population decreased. From 1950-1970 the species decreased by 56. They were not able to offspring and increase their population.

conclusion on BLACK SWAN POPULATION- the growth on this species both increased and decreased. In 1950, there were 56. 10 years later there were 58 then went down to 57, 10 years later. So, they were still being hunted but still had the ability to offspring a bit so they’re species are still able to survive.

HOPE THIS HELPS YOU!

This post might have the info you need: