<em>Answer: Chromosomes </em>
<em>Depending on the organism, the number of chromosomes in a cell may change.</em>
Wind contributes the least!
Answer:
Wind pollinated have light and small pollen grains to be easily carried away. They also lack petals or have small ones, so that the pollen can be exposed and easily swept by wind.
<u>Answer</u>:
Smaller planets would dissipate heat more rapidly and this criteria doesn't satisfy the conditions of existence of life.
<u>Explanation</u>:
The existence of life on Earth was possible because it fulfilled the criteria needed for the conditions of generating life in a planet. Its distance from sun is appropriate, it is made up of rock, it is big enough to have a core which is molten and it has a magnetic field. If it was a smaller planet, then it would have a liquid hot core that dissipate heat at a rapid rate. This condition doesn't support the criteria of life's existence.
