1. After reading & viewing videos about Costa Rica, write a paragraph explaining What
were the significant contributions Costa Rica made to preserve/recover their forests
and why Costa Rica has set aside a much larger percentage of its land for
biodiversity conservation than the United States has? Should the United States
reserve more of its land for this purpose?

Use the drop-down menu to complete the statement. an electron in the first energy level of the electron cloud has an electron in the third energy level. a. a lower energy thanb. a higher energy thanc. the same energy as

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?