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Ostrovityanka [42]
2 years ago
11

The pH scale ranges from ____________ to ____________ and is used to indicate the ____________ of a solution.

Biology
1 answer:
nexus9112 [7]2 years ago
4 0

Answer:

Acidic, Basic, acidity

Explanation:

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Populations evolve for many reasons. Suppose there is a population of plants that have either purple flowers or white flowers, a
sattari [20]

Answer: natural selection

Explanation:Natural selection, gene flow, gene drift and mutation are the mechanisms for EVOLUTION.

The dominant purple allele must have been acquired from previous parent gene, by natural selection

Definitely the available   alleles from previous flower population were white and purple flowers. But, because the parents of purple flowers exhibit VARIATION, in their gene pool,  they showed dominance over  the recessive white colour flowers in the same population.  

◼ from Darwin’s observation and deduction, Organisms who acquired certain characteristics from variation  tend to survive than others, and therefore pass these inheritable characteristics to their offspring.

◼Thus the purple flowers dominated the population for the available resources, among the other flowers colours, (competitions) therefore it leads to a stable population in size after a period of time., while the white colour flowers are recessive

◼Darwin concluded that, variants of best adaptation will be selected for by natural conditions operating in the environment of the population at that particular period (natural selection).

Based on this, natural selection takes place, and the purple flowers with best variation will have selective advantage (dominance)above white colour flowers(recessive).

Consequently, they have higher survival rates compare to white flowers in the population this is   survival of the fittest by natural selection of purple flowers

The frequency of the white colour flower will reduced because of less manifestation of traits from generation to generation from reduced gene pool due to recessive trait, however the frequency of Purple flower will increase because the number of copies of allele of purple flowers is greater than the total number of all the flowers population( white flowers+purple)

5 0
3 years ago
Which of these organelles is NOT in animal cells?
Amanda [17]

Explanation:

Cell wall is not present in animal cells .

6 0
3 years ago
Read 2 more answers
What do you mean by formatting text ?​
Liula [17]

What they mean by formatting text is ,to organise text in such a way that it becomes more attractive and easy to read

7 0
3 years ago
An interaction in which an animal feeds on plants is called
lozanna [386]
Its called a herbivore
7 0
3 years ago
Which acid is used to produce chloride salt
Nata [24]

Answer:

Different acids make different salts.

Explanation:

a hydrochloric acid

b sulphuric acid

c nitric acid

5 0
3 years ago
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