An earthworm lives and reproduces in the soil. It aerates and adds organic material to the soil. The earthworm is a source of food for other organisms. All of these statements together best describe:.
A. a habitat
B. a niche
C. nutrients for autotrophs
D. competition

For each example, identify the most appropriate ctso. ann wants to be a manager who directs the work of others: hosadecatsanational ffa teresa wants to have a career that emphasizes mathematics: fcclapastsanyfea justin wants to have a career in nursing: bpahosafbla-pblfea howard wants to have a career focused on the education of others: feafcclanyfeapas

In some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. the production of sterile male ligers is an example of read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. the production of sterile male ligers is an example of a postzygotic barrier the founder effect sympatric speciation a prezygotic barrier

Which article of the us constitution addresses the issue of interpeting the laws of the united states