Question

for which method of determining population size is the population not aware of the samplers presence?
a. mark/recapture
b. direct observation
c. sampling
d. indirect observation
please select the best answer from the choices provided

Explanation:

Indirect observation involves detecting signs of organisms (like tracks, nests) without the organisms being aware of the sampler. Mark/recapture requires handling organisms, direct observation is when the sampler is seen, and sampling may involve direct interaction.

Answer:

D. indirect observation