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Nina [5.8K]
3 years ago
5

What is the original source of almost all energy in most ecosystems

Biology
1 answer:
notka56 [123]3 years ago
8 0
Water, wind, or sunlight

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Although selection operates against deleterious alleles in populations, they are rarely lost from these populations. For example
KonstantinChe [14]

Answer:

Deleterious alleles appear sporadically in a population

Explanation:

A population with a deleterious allele will have no or few individuals that have the ability to pass along these traits. These alleles appear less in a population because of selective pressure but they are not always absent. The alleles appear less often but are are not always passed on and the others that are genetically fit are able to pass along their genes. The reason the population equilibrium is not zero is because these alleles do appear but they are not necessarily passed along. These individuals may not be able to reproduce or reach the age of reproduction.

Deleterious alleles appear more often, making individuals less fit genetically, i.e. they pass fewer copies of their genes to future generations. Put another way, natural selection purges the deleterious alleles.

3 0
3 years ago
Which is true of genes found on chromosomes?
PSYCHO15rus [73]
The option that is true of genes found on chromosomes is that D. they determine the inherited traits of an organism.
Genes are inherited - so those are the things that we get from our parents and other ancestors. It is easy to determine which of these genes a child is going to inherit - the doctors just need to take a look at the chromosomes, because genes are located there.
4 0
3 years ago
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Write a complete sentence for the word Germinal period <br><br> Please help !!!
Travka [436]
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6 0
3 years ago
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PLEASE HELP ME!
olchik [2.2K]

The correct answer is option C) A wet spring before vegetation is growing. A lack of roots holding soils and sediments together and an over-abundance of water can result in mass movements.

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3 years ago
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Tall pea plants are dominant to sho rt pea plants. A tall pea plant (TT) is crossed with a short pea plant (tt).
Marat540 [252]

Explanation:

4 dominant allele because all pea plant present in TALL condition , not a recessive allele is presents

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