30. how might an ecologist test whether a species is occupying its complete fundamental niche or only a portion of it? a) study the temperature range and humidity requirements of the species. b) observe whether the niche size changes after the addition of nutritional resources to the habitat. c) observe whether the niche size changes after the introduction of a similar non-native species. d) measure the change in reproductive success when the species is subjected to environmental stress. e) observe whether the species expands its range after the removal of a competitor.

by observing whether the nichesize changes afterthe introduction of a similar non natives species

Explanation:

an organism that occupies it's specificed niche will these to increase in size due to the proper conditions at its niche

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.