Fish are classified as vertebrates because they have
a. a brain.
b. a backbone.
c. two germ layers.
d. bilateral symmetry.

Nerve cells are specialized to respond to stimulitrue or false?

Si el equipo no fuera bueno no con el entrenador.

What is the importance of having the us forest service, the bureau of land management, the us fish and wildlife service, and the national park service? to manage land resources for conservation and the development of natural resources to manage land resources for conservation and the development of urban areas to preserve historical landmarks and manage the development of urban areas to preserve historical landmarks and manage the development of rural areas