Are cells that identify, pursue, and attack harmful invaders in the body.

Galaxy whose shape seems different follow no set pattern are classified as

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service