The average star cycle: nebula, protostar, main sequence, red giant, white dwarf. The massive star cycle: nebula, protostar, main sequence, super red giant, supernova, black hole, neutron star.
The star cycle is the sequence of changes that a star undergoes throughout its existence.
<h3>The evolutive stages of an<u>
average star</u> are </h3>
- Nebula: Stars are born from the nebula that is the dust and gas particles condensation due to gravity effect in the interstellar clouds
- Protostar: It is a more advanced level of condensation.
- Main sequence. Equilibrium between gravity and nuclear fusion helps the star keep stable as long as the fuel lasts. The two main types are
• <em>Orange dwarf</em><em>: </em>between the red dwarf and the yellow dwarf
• <em>Yellow dwarf:</em> Like the sun
- Subgiant: occurs when orange and yellow dwarfs finish their main sequence and start to run out of fuel, expanding.
- Red giant. After the subgiant stage, the star enters a giant phase. The star can reach a size of up to 100 times its current size.
- White dwarf. When average-sized stars run out of fuel, the red giant begins to disintegrate, losing its outer layers and exposing its core, which will become a white dwarf.
<h3>The evolutive stages of a<u> </u><u>
giant star</u><u> </u>are </h3>
- Main sequence. There are two main types
• <em>Yellow supergiant</em>. Extremely short phase. Almost no stars are known to be in this stage. The star swells on its way to becoming a red supergiant.
• <em>Red supergiants</em> are the largest stars in volume, but not in mass.
- Supernova. When fuel is over in the red supergiants, the gravitational collapse produces a violent explosion originating the supernova.
- Neutron star. A celestial body that remains as a remnant after the explosion gives rise to a supernova.
You can learn more about the life cycle of stars at
brainly.com/question/2437142
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Answer:
All plants carry out the 7 life processes.
Explanation:
First, the 7 life processes are:
- Movement: (some may argue that plants don't move, as they cannot walk, but walking/moving from point A to B is called locomotion, not movement. Movement is when an organism moves a body part or parts to bring without a change in the position of the organism.
- Sensitivity: The way organisms respond to their environment.
- Nutrition: Organisms acquiring energy from metabolic processes (basically food)
- Excretion: Waste being eliminated from an organism's body.
- Reproduction: Process in which offspring are produced by parent organisms.
- Growth: Development from growth to maturity of an organism.
- Respiration: Organism obtaining energy from the reaction between glucose and oxygen.
They are necessary for all living things to be classified <em>as</em><em> </em><em>living</em><em> </em><em>things</em><em> </em>(however, viruses are another story I won't even go into)<em>.</em><em> </em>Therefore, all plants carry out these processes, as they are living things.
Sorry for the long reply lol.
Hope I helped :)
Answer:
You did not provide a diagram, but my guess would be a comparison between a plant cell and an animal cell in terms of organelles.
Golgi body is found in both plant cells and animal cells. They are responsible for packing, transporting, and modifying proteins and lipids. They store what's needed, disassemble those that are not needed, or send them off to get rid of.
The cell wall and chloroplast are found only in plant cells. The cell wall is a rigid structure that provides support to the plant cells, while the choloroplasts are sites for production of sugar.
Flagellum are generally found only in animal cells, rather than plant cells. They are used for locomotion. Since plant cells do not really need to move, they do not have a flagellum.
You can look at the venn diagram to help you out.
In 2017, about 10 percent of the total U.S. energy consumption came from renewable energy – including biomass, geothermal, hydropower, solar and wind – and about 17 percent of the nation's electrical consumption came from renewable sources.
