Each human cell has chromosomes. all dna is organized into two pairs of .

1.if the dartboard below is used to model an atom which subatomic particles would be located at z?

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

What initially causes a nerve impulse? release of enzymes out of the neuron movement of chemicals into the dendrites of the neuron pathogens attacking the dendrites of the neuron red blood cells bathing the neuron