1. A normal cell in a laboratory forms a single layer on a dish. When the cell touches other cells, it halts dividing. Which of the following hypotheses explains this phenomenon? a. It was regulated by kinases and cyclins.

b. Cells grow and divide in response to one growth factor.

c. It happens when internal and external signals stimulate genes that help produce self-destructive enzymes.

d. Receptors on adjacent cells have bound to each other causing the cells’ cytoskeleton to form structures that may hinder the signals that activate the growth.

Si el equipo no fuera bueno no con el entrenador.

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above

Hurry i need your (100 points) 1) what are the responsibilities of the region of the brain highlighted below? (picture located below) the highlighted portion is at the rear base of the brain, behind the brain stem. regulating homeostasis, hunger and eating, thirst and drinking, and many other functions of basic survival. coordinating movement and balance by using information from sensory nerves, including hand-eye coordination. controlling voluntary body movements, processing information from sense organs, thoughts, and learning abilities. regulating important involuntary bodily functions such as blood pressure, heart rate, breathing, and swallowing. 2)which of the following systems or structures is correctly paired with its function? neurons - brain cells that control thoughts, calculations, and memory cerebral cortex - portion of the brain that controls involuntary body movement peripheral nervous system - carries impulses to and from the central nervous system central nervous system - carries information from the nerves to the muscles and glands