The correct answers are: They provide localized regions of function and They are highly discrete and organized
Nuclear domains or bodies are membraneless structures within the nucleus that make nucleus compartmentalized. The function of these “compartments” is to enhance the efficiency nuclear processes. Nuclear bodies include:
• the nucleolus-the place where ribosome biogenesis occurs.
• Cajal bodies- consist of proteins and RNA; its functions are associated with telomerase assembly; in cells that divide rapidly
• splicing speckles –contain RNA splicing factors
• promyelocytic leukemia protein nuclear bodies-involved in programmed cell death; control cell division.
This statement is true. Plaque is considered dangerous because it can break off and create a clot in the arteries. one of the most common results of this is heart attack.
I believe the answer is A. True.
The driving force for the movement of lithosphere plates is convection currents. These currents are found in the inner core of the earth and take the heat from the core to the lithosphere. Tectonic plates are able to move because of the relative density of oceanic lithosphere and the relative weakness of the asthenosphere. Dissipation of heat from the mantle is acknowledged to be the original source of energy driving plate tectonics. The current view, although it is still a matter of some debate, is that excess density of the oceanic lithosphere sinking in subduction zones is the most powerful source of plate motion.
