Question

the primary focus of an ecologist is the reactions of different species within a community. true false question 13 1 pts this tool is used by scientist to survey a section of a population by sectioning it off from other areas and counting individual species diversity. field cameras pitfall trap plankton net quadrant

Explanation:

1. Ecologists study interactions among organisms and between organisms and their environment, including the reactions of different species within a community, so the first statement is true.
2. A quadrat is a square - shaped frame used to section off an area for sampling and counting the number of individual species and assessing species diversity. Field cameras are used for observing animals without disturbing them, pitfall traps are for trapping small - moving ground organisms, and plankton nets are for collecting plankton in water.

Answer:

Question 12: True
Question 13: Quadrant