The Caribbean monk seal was declared extinct in 2008. Although there are other types of seals on Earth, Caribbean monk seals could only breed with other Caribbean monk seals. A Caribbean monk seal in an enclosure. The last Caribbean monk seal that died was the last member of a species. a community. a biome. an ecosystem. Mark this and return

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?

Explain how scientists use geologic time to determine the age of landforms.

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.