If tall plants crossed with short plants give all tall, it means that the tall plants contain genes that dominate over the short ones.
We call the genes for tallness dominant.
<span>Plato first proposed that the planets followed perfect circular orbits around the Earth. Later, Heraclides (330 B.C.) developed the first Solar System model, placing the planets in order from the Earth it was is now called the geocentric solar system model.
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It is false that cytoplasm is a single substance like water.
It consists of 80% water, but has other elements as well.
Because bacteria mutates that's why we have a new flu vaccine every year , because strains of DNA in the bacteria change all the time.
