A new species is introduced to an ecosystem. Over several years, the species biodiversity of the ecosystem decreases. Which statement best explains this observation? Select one:

The species did not feed on herbivores in the ecosystem.

The species left the ecosystem.

The species competed with existing predators.

The species attracted new predators.

The table below shows data for a population of fish in a pond. fish body color # of fins scales? tail shape a silver 4 yes fan b pink 4 yes flat c black 4 yes fan d orange 4 yes flat e orange 4 yes fan f silver 4 yes flat which of the above characteristics would be most in developing a classification system for the fish? a. body color and tail shape b. presence of scales and tail shape c. body color and number of fins d. number of fins and presence of scales

Label the following as inner or outer planets; a) has 67 moons made mostly of hydrogen and helium b) has rings c)no moons, high volcanic activity d) known as the red planet, has 2 moons e) very thin atmosphere, moons or rings

After a group of researchers conducts a new experiment that has never been conducted before, what is the best way for other scientists to make sure that the data is real