Are chromosomes different names for dna

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

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

Creating new things to solve problems and improve life depends on the close interaction of which two fields?