Answer:
21
Explanation:
there are supposed to be 2 chromosomes, not 3. This person has down syndrome.
Answer:
1. The bottom graph matches this statement, because it shows a drastic decrease in population.
2. The top graph matches this statement, because it shows most of the population surviving for quite some time.
3. The second graph matches this statement, because it shows a drastic increase in population.
4. This would be the third graph, because it shows a dramatic increase then a stabilization.
<span>The fertilization of a female egg cell with a male sperm cell is also referred to as Conception (option D)
This process is also known as generative fertilization, conception, syngamy and impregnation. It is the union of gametes to begin the development of a new individual or organism.
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Answer:
A
Explanation:
Coal is majorly used to produces electricity. The coal is ignited and the heat produced used to heat water to steam. The steam is then used to drive turbines with a dynamo effect to produce electricity. Turning off lights when not in use reduces the demand for electricity hence reducing the amount of coal needed to meet this demand.
Other ways to conserve energy is using bulbs with low energy demand - such as LEDs - and improving natural lighting indoors.
