In every trophic level, only 10% of energy is passed on.
Grass, with <span>30,000 kJ of energy, is eaten by a zebra.
Zebra then has 10% of 30,000 kJ from the grass, which is 3,000 kJ of energy.
Cheetah then eats the zebra, gaining only 10% of 3,000 kJ of energy of the zebra. Finally as conclusion, cheetah has 300 kJ of energy after having acquired the zebra.</span>
If your asking if you can prove everything by science then no but people will try they will give out theories and try to find solutions that they can't. And if your asking if your able to prove all things that happen/the explanations scientifically then the answer is no. Take how the world was made for example nobody knows how it is made. The scientists are trying to prove it was created by some big bang when in reality nobody really knows that's just a theory. One of many theories.
The probability that a group of four siblings includes all XY is 1/16 (6.5%), while the probability all XX offspring is 1/16 (6.5%). It is a simple genetic probability calculation.
<h3>Genetic probabilities and chromosomes</h3>
Females inherit two chromosomes X, whereas males inherit one chromosome X and one chromosome Y.
The probabilities of inherent two chromosomes X (females) are 1/2 (50%), while the probabilities of inherent one chromosome X and one chromosome Y (males) are also 1/2.
In consequence, the probability that a group of four siblings includes all XY is 1/16 (because it is equal to 1/2 x 1/2 x 1/2 x 1/2 = 1/16), the same for the probability all XX offspring (1/16).
Learn more about genetic probabilities here:
brainly.com/question/851793
Answer:
2 halves are equal to one whole
1/2 + 1/2 = 1
It reproduces cells to work for all systems