The phase plane plot below shows zero growth isoclines for two predator populations that feed on a common prey species. The two predator populations represent related species, which are ecologically similar in most respects. Based on this information alone, which of the following statements is most plausible?a. Predator A Predator prey Predator A exhibits stronger territoriality and competition for breeding sites than Predator B. b. Predator B exhibits stronger territoriality and competition for breeding sites than Predator A. c. Neither predator species exhibits territoriality or other self-limitation. d. The prey species has abundant refuges and is well protected from predation.

radiant energy is a form of kinetic energy only.(a)

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals

answer; passive listening;

the secretary of defense is the principal defense policy advisor to the president. under the direction of the president, the secretary exercises authority, direction, and control over the department of defense.

as you did not provide any choices for me to choose from to give you a direct answer, this is the only information i can provide.