Alleles are the individual genes that give rise to certain characteristics in an organism.
When an allele is "fixed" to a population, this means that the characteristic will be constant & most likely will not change until the environment changes as well.
Like with arctic hare, the alleles that influence the color of their coats (white in the winter & brown in the spring/summer) will stay because any fur pattern other than the aforementioned characteristics with result in becoming someone else's food with the lack of camouflage.
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Answer:
is that what your lookin for
Explanation:
The different types of the ecosystem include:
Terrestrial ecosystem.
Forest ecosystem.
Grassland ecosystem.
Desert ecosystem.
Tundra ecosystem.
Freshwater ecosystem.
Marine ecosystem.
Answer: Complementary base- pairing creates a very stable structure
Explanation:
There would be an increase in dead matter and a lack of nutrients in the soil.
Decomposers break down dead matter, so without them there will be an increase.
They then return the nutrients from the dead matter to the soil, so there will be a lack of nutrients in the soil.
Examples of decomposers are mushrooms and earthworms.