Many animals have developed courtship behaviors. males will often dance, swim, or sing in a particular way to attract a female. males who are more successful at the courtship behavior will have a greater chance of having more offspring. this behavior is a result of

The body is protected against harmful flu viruses by

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

Ineed to know why d is the correct answer asap