What is the function of the immune system? it exchanges oxygen and carbon dioxide. it provides structure for the body. it eliminates waste from the body. it responds when pathogens enter the body.

Apea plant that is heterozygous for the tall phenotype can produce short offspring when self pollinating. which of the following explains why this occurs? a. segregation of allels b. condominance of traits c. polygenic expression of traits d. independent assortment of alleles

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

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment