Question

for which method of determining population size is the population not aware of the sampler’s presence?
a. mark/recapture
b. direct observation
c. sampling
d. indirect observation

please select the best answer from the choices provided

○ a
○ b
○ c
○ d

Explanation:

• Mark/recapture requires handling organisms, so they are aware of the sampler.
• Direct observation involves observing the population directly, so the population may detect the sampler.
• Sampling often involves direct interaction or presence near the population.
• Indirect observation uses signs (like tracks, nests) instead of observing the organisms directly, so the population does not know the sampler is present.

Answer:

d. indirect observation