A coral reef is a complex system. In a complex system, many variables may be changing at the same time. What would be most helpful in trying to understand the overall system of a coral reef?

A. A picture that shows an unusual event in a coral reef system.
B. Data that shows the temperature of the water in the coral reef system.
C. Data that shows the number of anemones in a coral reef system.
D. A picture that shows a typical example of coral reef system.

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards. the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous