Leaves are the major sites of photosynthesis in most plants
Because as trials go on scientists discover more information and alter the theories and that is why they are referred to as a "theory" instead of a scientific "law"
Viruses are not considered living organisms because they lack some of the basic characteristics of life.
The cell is described as the smallest unit of life. Since viruses are <u>not alive</u>, we can infer that they <u>do not </u>contain one or more cells. <u>Viruses </u>have a <u>protective</u> <u>protein coat</u>, which can be considered a defined boundary.
Viruses are not capable of producing or using their own energy. They only activate when they come into contact with a host cell and <u>then use the host cell's energy. </u>
As per the pattern, viruses<u> </u><u>do not have</u> internal organization nor metabolic processes which would allow for growth, therefore, viruses do not grow nor do they produce waste in any form.
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They are coded in our parent's c<span>hromosomes which contains DNA, our heriditary material</span>
ANSWER:
Radioactive element life years = 1000/2 = 500yrs.
So, Rock years
- 6.25/100 × 500
- 31.25years.