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Eduardwww [97]
3 years ago
6

Which is not part of the muscular system ? heart bicep deltoid liver

Biology
1 answer:
Oksanka [162]3 years ago
3 0

Answer:

heart

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
PLZ HELP 20 POINTS
valina [46]

Answer:

There are 8 electrons in the outer ring, and has to react with 8 or fewer electrons to form a stable molecule.

Explanation:

The outer-most orbits of  silicon contains a maximum of eight (8) electrons. It requires 8 of fewer electrons to form a stable molecule.

5 0
2 years ago
Part 1: Why is Fresh Water in Short Supply?
shepuryov [24]

Part 1;

Because there is only limited amounts of fresh water on the Earth the rest is salt water; which humans can not survive on as the salt dehydrates our bodies instead of hydrates.

1) The more we try to get the the fresh water the more we will likely make more pollution.

2) The more we use the less there is.

3) Everything needs water.

Part 2; no idea I believe it is the ice caps, as it is fresh water in the ice caps and not a lot of humans up there to pollute the runoff.    

6 0
3 years ago
Which describes a mature speed in terms of the number of chromosomes it contributes during reproduction?
IRINA_888 [86]
I think its (Haploid with 46) but i am not sure sorry
3 0
3 years ago
In order to use a Punnett, square we must know the ___________ of an individual
egoroff_w [7]
  <span>The genotype is required for you to use a punnet square. In the construction of a punnet's square, the genotypes of both parents are required. In the three by three square, the first column shows the genetic representation of one parent and the first row shows the genotype of the other parent. The two are combined, and they yield a genetic combination of both parents, giving all the possible outcomes of the offspring's genotypes. Using the punnet's square, you can be able to identify the percentage of the offspring that will be heterozygous or homozygous.</span>
4 0
3 years ago
Read 2 more answers
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