Cell division allows for the growing of new cells. With a unicellular organism, cell division would be the cell's way of reproducing or multiplying, in other words, surviving. Within a multicellular organism, cell division is the organism's way of replacing old, damaged, or dead cells. Within multicellular organisms, cell division also aids in growth.
D. specialize cells perform specific functions in the body
Answer:
When neurons communicate, an electric impulse triggers the realease of neurotransmitters from the axon into the synapse. The neurotransmitters cross the synapse and bind to special molecules on the other side ,called receptors. Receptors are located on the dendrites. Receptors receive And process the messages
Answer:
the fossils are examples of... mineralization
The fossils tell us that polar regions... formed a supercontinent that divided and slowly drifted to polar regions
Explanation:
Mineralization is a type of fossilization where rich-mineralized water fills the pores of the dead tissues for a long time. Subsequently, when this water is evaporated, the excess of minerals is deposited on the tissues, thereby mineralizing organic tissues.
Fossils enable us to understand more accurately past climatic conditions from regions where these fossils were found. For example, the discovery of plant fossils closely related to tropical species in polar regions suggests that these regions were once a part of a super landmass known as Pangea that divided and drifted a long time ago (millions of years ago).
The part of the nervous system that is similar to the autopilot is the AUTONOMIC NERVOUS SYSTEM. It controls the muscles and the glands of the internal organs. It is divided into sympathetic and parasympathetic. The sympathetic autonomic nervous system brings about excitation in the body while the parasympathetic brings about calmness.
