Terry is teaching his class about atoll reefs. Which of these points should Terry mention in his explanation?

1) that atoll reefs are the oldest
2) that atoll reefs border the shorelines
3) that atoll reefs generally have a lagoon between the shoreline and the reefs
4) that atoll reefs are the youngest

Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.

Could someone me with number one you

Examine the air pressure map. which type of line is shown on the map?