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Xelga [282]
3 years ago
15

I have a test in a couple days and I still don’t know how to do this stuffsomeone teach mee

Biology
1 answer:
SIZIF [17.4K]3 years ago
4 0
Blue square:
0 0%
2 50%
2 50%

Red square:
2 50%
2 50%



Work:

b b
B Bb Bb
b bb bb

B=Dominant trait
b=Recessive trait

BB=Purple flower
Bb=Purple flower
bb=White flower

If that makes sense.
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Plants that can live in water-soaked soil are able to survive in the _____________ ecosystem.
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Answer:

plants that can live in water-soaked soul are able to survive in the aquatic ecosystem

8 0
3 years ago
When many individuals with the same trait die before reproducing, what happens to the distribution of that trait in the populati
sattari [20]

Answer:

The distribution of that trait in the population will change, probably decreasing to near zero.

Explanation:

An evolutive force such as natural selection is acting on this population.

Natural selection is the result between the individual phenotype and the environment that determines the destiny of genes. It results in adaptation, which means the increase of the aptitude phenotype.  

Aptitude (or fitness) is reflected by the phenotype that results in the survival, fertility, and capability of having a mate. Aptitude is the contribution of each genotype to the next generation. It is a way of measuring the individual ability to leave fertile offspring. Aptitude must be significant to the natural selection act in its favor.  

Natural selection can act favoring an allele or against it, according to how it affects the fitness of individuals.

When many organisms in a population sharing the same trait die, this is because they did not have good fitness, so they were not adapted to the environment and its pressures. The alleles coding for that trait were not good for the fitness of the animals, so they do not get to survive.

These individuals die before reproducing, so they could not transfer their genetic charge to the following generation. Eventually, the alleles coding for the trait will decrease in the population, probably near zero. Natural selection is acting against this phenotype. Other alleles will be beneficiated, and their frequency in the population will increase.  

This change in alleles frequency is what we call adaptation.                  

   

5 0
2 years ago
What type of epithelial cell are taller than they are wide? ​
Dennis_Churaev [7]

Answer:

Columnar epithelium

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Squamous epithelium has cells that are wider than they are tall. Cuboidal epithelium has cells whose height and width are approximately the same. Columnar epithelium has cells taller than they are wide.

4 0
3 years ago
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I promise there will be nothing inappropriate or unsafe

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Pass, share, botany would be a synonym
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3 years ago
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