What pressure do capillaries carry? What structural adaptions allow them to carry this pressure? How many layers do capillaries have? Are they thick, thin, or in between? Do they have valves?

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

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

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?