1.what weakens coral exoskeletons? excess salt excess co2 excess sunlight excess fishes 2.a quarter of marine life lives in which type of ecosystem? fish zooxanthellae coral reef ocean 3.what do corals provide for zooxanthellae? food sunlight a source of oxygen a protective area

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

The smallest parts of these that retain their original properties are called

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.