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Vera_Pavlovna [14]
3 years ago
6

Which mineral property describes a minerals resistance to being scratched?

Biology
1 answer:
zhenek [66]3 years ago
8 0
Answer - Hardness 

Reason - Given the moths scale you can determined the resistance.

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Which is part of the amphibian reproductive and development processes?
Pie

Answer:

Males fertilize masses

of

eggs laid in the water by females.

Explanation:

fertilization is a reproductive process

3 0
2 years ago
A patient can't feel his fingers after a hard fall on his arm during a wrestling match. The doctor suspects nerve damage. What p
Tcecarenko [31]
I believe sensory nerve
5 0
3 years ago
Natural selection is based on the idea that as an environment changes, an individual's genetic makeup will change suddenly to su
Schach [20]
No. The natural selection is when the best suit fits survive. Therefore is not the idea that as an environment changes.
7 0
3 years ago
Explain the process of cross-pollination.
Anna007 [38]

Cross pollination is the transfer of pollen of different species to stigma of different species of plants.

Cross pollination results in healthy, viable and diverse plants.

Mendel observed that traits could either be dominant or recessive.

Blended traits or incomplete dominance is the condition in which dominant allele could not produce its trait alone instead blending with recessive allele takes place giving new phenotype to progeny.

Explanation:

In cross pollination pollen transfer takes place from anthers to stigma. In Mendelian genetics the anthers of the plant was removed because it has both male and female parts on same plant so that self pollination does not take place.

The importance of cross pollination is that it creates diversity in the plant species since the traits having different alleles are combined to form the progeny plant. The offspring are healthier and high quality seeds are found.

Mendel observed that traits are either dominant or recessive in general.  It was observed that when homozygous parents were crossed, the progeny in F1 generation always had dominant trait. The recessive trait only appeared when F1 generation offspring were self pollinate.

Blended traits or incomplete dominance appear when alleles get blended and exhibit the traits in phenotype. The phenotype appeared will not be matching with either parents.

The example is a white coloured flower is crossed with red colour flower the resultant colour of the flower is pink. It shows that dominant allele red is not completely dominant and gets blended with white colour.

7 0
3 years ago
Each P1 parent of a monohybrid cross has completely identical genes<br> ture<br> false
lawyer [7]

Answer:

False.

Explanation:

Monohybrid cross may be defined as the cross done by taking the single character at the time. The monohybrid cross explains the concept of dominance and law of segregation.

The P1 parent of monohybrid cross doesnot have completely identical genes. This can be explained by the cross shown below:

Parent         Tt           ×       tt

Gamete         T  t           ×     t

Here, the parents are not identical.  

Thus, the answer is falsi.      

8 0
3 years ago
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