1 AU means 1 astronomical unit or the aproximate distance from the earth to the sun
1AU=<span>149597870.7 kiometers
1 billion=1,000,000,000
600 billion=600,000,000,000
</span>
<span>x times 1AU=600,000,000,000
x times </span>149597870.7=<span>600,000,000,000
solve for x
divide both sides by </span><span>149597870.7
</span>x=4010.75
so aprox 4011 AU's
Hi!
Question - How do mutations lead to variation
Answer - B. By producing changes in the genetic code
Why - "In which can create entirely new alleles in a population"
More enzymes more useful collisions
Seedless plants genetically alternate between generations.
<h3>What is the reproduction cycle of seedless plants like?</h3>
All seedless vascular plants have very similar life cycles. As in bryophytes, their life cycle has two alternating generations:
- the gametophyte
- and the sporophyte.
- The sporophyte is always the dominant and free-living generation.
With this information, we can conclude that seedless plants genetically alternate between generations.
Learn more about Seedless plants in brainly.com/question/10715162
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