Answer:C
Explanation:When the ball it up high it holds gravitational potential energy, as it rolls down it gain kinetic energy which is then turned into heat energy due to friction
D. Mechanically and chemically breaks down food for nutrient absorbtion
Answer:
As time progressed, to reach the tops of trees to eat their leaves, the giraffe's necks grew longer. Those without long necks could not reach the leaves and began to die off. This allowed only giraffes with long necks to survive. Eventually, their necks grew to the length they are now.
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Mars and Moon are the locations from which meteorites would come.
Option (c);
<u>EXPLANATION: </u>
- The meteorites found on Earth look like martian crystal rocks.
- These might be first ejected into space during a collision of an asteroidal object with Moon or Mars and then it got into the Earth orbit because of the force produced during the collision.
- There are around seventy meteorites recognised to have come from the planet Mars till up to the present date.
- There are three types of meteorites such as Martian meteorites and a sample of two lunar meteorites.
- To identify the origin of the meteorite, the scientist tries to identify the type of rock followed by analysing the chemical composition and then try to identify its age.
Crossing Over -A process occurring during meiosis wherein two chromosomes pair up and exchange segments of their genetic material.It results<span> in new combinations of genes.
</span><span>Independent Assortment law states that allele pairs separate independently during the formation of gametes. Therefore, traits are transmitted to offspring independently of one another.</span>