The Hertzsprung-Russell diagram is one of the most important tools in the study of stellar evolution. Developed independently in the early 1900's by Ejnar Hertzsprung and Henry Norris Russell, it plots the temperature of stars against their luminosity (the theoretical HR diagram), or the color of stars against their absolute magnitude
Depending on its initial mass, every star goes through specific evolutionary stages dictated by its internal structure and how it produces energy. Each of these stages corresponds to a change in the temperature and luminosity of the star, which can be seen to move to different regions on the HR diagram as it evolves. This reveals the true power of the HR diagram – astronomers can know a star’s internal structure and evolutionary stage simply by determining its position in the diagram.
The Hertzsprung-Russell diagram the various stages of stellar evolution. By far the most prominent feature is the main sequence (grey), which runs from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) of the diagram. The giant branch and supergiant stars lie above the main sequence, and white dwarfs are found below it.
Answer:
Prokaryote slack a nucleus and membrane bound organelles while eukaryotes have a nucleus and membrane bound organelles
Explanation:
None of the other answers make sense and also I took bio this year. Hope this hellped
Give me brainliest?
<h2>cAMP and glucose mobilization</h2>
Explanation:
It would maintain high cAMP level and elevate glucose mobilization
- Phosphodiesterase is an effector enzyme which degrades secondary messenger cAMP(cyclic adenosine monophosphate)
- Here in this case an inhibitor is inhibiting the phosphodiesterase therefore cAMP level will increase
- As cAMP level rise it activates a protein called protein kinase A which phosphorylates phosphorylase kinase and activates it
- Phosphorylase kinase becomes active that phosphorylates glycogen phosphorylase and makes it active,glycogen phosphorylase catalyse breakdown of glycogen(in liver and muscle cells)
- In liver cells breakdown of glycogen occurs and glucose 1 phosphate gets converted into glucose and supplied to whole body through blood
Answer:
They are large macromolecules
Explanation:
Such as lipids, carbohydrates, proteins, or nucleic acids
