Answer:
It only records trends in population at fixed locations in the ecosystem.
Explanation:
The point count method is a method used to monitor the populaton of birds in certain places that consists on having someone fixed at one spot and record all the birds that he can spot by sight and by ear, so if he sees or hears a certain bird he records it, to have a close idea of the species of birds that there are in a certain location, the problem would be that it only records trends at fixes locations in the ecosystem.
Hi there!
All organisms need to use oxygen in order to operate cellular respiration. It's used to break down nutrients and create ATP, which is energy.
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Answer:
Refraction
Explanation:
Refraction is the change in direction of waves that occurs when waves travel from one medium to another.
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