1. A(n) is an example of an animal that is a chordate but not a vertebrate. 2. One of the features shared by all chordates is a(n) , a flexible rod that runs along the top side of the back. 3. All vertebrates have a(n) , an internal system of bones (in your case, 206 bones). 4. A(n) is an animal that has a backbone in addition to displaying the four features of all chordates. 5. A(n) is an animal that lacks a backbone and may or may not have all of the chordate features. 6. The phylum contains animals that share four specific anatomical features, including a hollow nerve cord and a tail.

the answer is b

explanation:

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.