40,000/180,000 = .222222
.22222 x 100 = 22.22222
Answer: 22.2%
<span>Ingrid asked, "How was the science fair?"
"It was weird," answered Lenny. "My volcano exploded and melted the table!"
"At least it worked," said Ingrid.</span>
In the apple maggot fly, the frequency of certain alleles increases steadily as one goes from North to South. This is an example of: Sympatric speciation.
Sympatric speciation is observed when there are no physical barriers which prevent any members of a species from mating with another, and all members are in close contact to one another. A new species, possibly established on a distinct food source or trait seems to develop instinctively.
The example of apple maggot fly supports a model for sympatric speciation in progress. Hawthorn is the native host for the apple maggot fly in North America. However, in the mid-1800s, a new population developed on introduced, domesticated apple.
To learn more about Sympatric speciation here
brainly.com/question/4493180
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Answer:
The sand castle was gone because the sun was on it so the sand castle disappeared, also the waves of the ocean could of washed it away too.
Explanation:
The sun was on the sand castle and it caused it to disapper, also the waves of the ocean could of washed it away.
Hope this helps :)
