Answer:
Tectonic plate movement is a long-term environmental change.
Explanation:
Tectonic plate movement is a type of movement in which plates of the earth moves on another. Due to this movement, earthquakes occurs which adversely effected the environment of the earth surface. Due to these tectonic plate movement, eruption of volcano occurs which helps in the formation of new mountains and we know that mountains change the climate. These movements causes long-term environmental change because it changes the environment slowly and takes more time to change it.
Crossing over is the main event in meiosis and heredity as it leads to genetic variation.
<h3>What is genetic variation?</h3>
Genetic variation is the changes that take place in the genes of individuals that can lead to the formation of new characters.
it generally occurs in meiosis specifically during crossing over.
Thus, it can be concluded that crossing over between non-sister chromatids during meiosis is significant in heredity as it leads to genetic variation.
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Because it has different important things inside to make the cell do it’s job
D surface tension because, adhesion is sticking, b makes no sense for this question, and heat has nothing to do with it either, because it distributes it's weight throughout its legs so it doesn't sink (it doesn't weigh much so this works.)
Hope this helps don't forget to hit that heart :)
Answer:
The pressure differences on either side of the valve.
Explanation:
The heart valves open and close passively because of pressure differences on either side of the valve. When pressure is greater behind the valve, the leaflets are blown open and the blood flows through the valve. However, when pressure is greater in front of the valve, the leaflets snap shut and blood flow is stopped.
Hope this helps!
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