PLEASE HURRY. When scientists make a model to study a system, such as a coral reef or the human body, which of these should they be sure to include? a
include only inputs
b
include no set boundaries
c
include a limited number of parts
d
include both biotic and abiotic influences

d ) include both biotic and abiotic influences

d

include both biotic and abiotic influences

Explanation:

Because they both are biotic and abiotic influences (also i found this info in my text-book) :))

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.