They channgebbecause they have to adapt to their environment get use to seeing other people
Answer: -flower holders ?
Explanation:
Answer:
Nebula --> Protostar --> Supergiant --> Supernova --> neutron star
Explanation:
A high mass star starts as a big cloud of dust and gases. This cloud is called a nebula. When these clouds pick up some momentum, it condenses into a protostar.
The protostar will continue to condense because of its increasing gravity. The hydrogen atoms will start to collide and the pressure and temperature will trigger nuclear fusion. This is when the start will enter its main sequence where the outward force of nuclear fusion is balanced with its inward force. It will remain at this state until it runs out of hydrogen atoms.
When hydrogen stats to run out, the gravitational force will be greater than the force of nuclear fusion causing the core to shrink. Nuclear fusion then will start to occur outside the core and the star then expands into a Super giant.
The expansion of the star enables the star to create heavier elements like helium which then undergoes fusion itself and becomes a source of fuel for the star. When helium slowly depletes, it pulled into the core by gravity and all that is surrounding the core will explode , making it a super nova which marks the end of a star.
Two things can result from a supernova, a neutron star or a black hole. For bigger stars, the result would be a black hole. If the mass of the star was at least three times greater than our sun, then it will implode and become a black hole. If it is less, then the core would form a neutron star.
Answer: A evolution is a process in which someone/something upgrades over the course of time. It usually leads to improvement in lifestyle of that species/thing.
Explanation:
By process of elimination you can deduce the answer:
A mutation causing uncontrolled cell division in human tissue cells is cancer and definitely not beneficial.
A mutation resulting in partial or complete loss of chlorophyll pigments in plants will lead to a plant not being able to photosynthesise and therefore unable to respire leading to death.
A mutation resulting in a squirrel being born without ovaries means the squirrel will be unable to reproduce and there for is not beneficial.
The answer is therefore a mutation inhibiting human immunodeficiency virus from entering the host cell. This means that the person who has this gene is unable to contract HIV which is beneficial