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➷ The correct answers would be:
phosphate molecule, nitrogenous base and deoxyribose sugar.
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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.
Hope that helps!
Answer:Long term drought, change of season from winter to summer, forest fire are unfavorable environmental factors which can deplete the amount of resources already available with the ecosystem. The long term drought will be a condition in which the ecosystem will suffer from non-availability of water.
Explanation:
Answer:
Not necessary.
Explanation:
No need for the revision of big band theory because this galaxy may be a product of big band event. At the start this galaxy is shorter and hot but with the passage of millions of years, this galaxy also expands and formation of stars and planets occurs. The stars and planets that are present in the galaxy occurs due to different events that is responsible for their current conditions. This formation of stars and planets needs millions of years.
Symbiosis
• A tight relationship of two or more species that are ecologically interdependent and live together in close proximity (symbiosis can be non-mutualistic e.g. parasite-host symbiosis)
