The nervous system is composed of the brain and spinal cord. the nervous system is composed of the brain and spinal cord. efferent autonomic central afferent peripheral

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

Environmental differences within ecosystems are generally caused by

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of