D, because they produce the food for the consumers, like grass.
Answer by Mimiwhatsup: C. Convergent boundary
Why is this right: Convergent boundaries but also known as 'destructive' is a(n) region of active deformation( an act of deforming, or at the state of being deformed) which is where two or more tectonic plates or fragments of the lithosphere are near end of their life cycle.
Emperor penguins have the ability to 'recycle' their own body heat. The arteries and veins lie close together so that blood is pre-cooled on the way to a penguin's feet, wings and bill and warmed on the way back to the heart. Emperors' feet are adapted to the icy conditions
Answer:
to transmit an output in response to the total afferent input
Explanation:
An effector refers to parts of the body generates response. An effector responds to transmit an output in response to the total afferent input Stimulus in the body are detected by the receptor which send signals to the central nervous system via sensory neuron where interpretation and a response is coordinated by the brain. The response is sent to the effector through the motor neuron.