1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tomtit [17]
3 years ago
7

Is ductility considered as a physical property or a chemical property

Biology
2 answers:
Elena L [17]3 years ago
5 0

Ductility is a physical property.

A physical property of a material is a property that can be measured or observed without changing the composition of the material.

In this case ductility is a physical property. It is defined as the  property of a material associated with the ability to be drawn or stretched into a wire without breaking. The chemical identity of the material is not affected, that is  it does not change.

Example of ductile materials include gold, silver, copper, erbium, terbium and samarium.

Other examples of physical properties are:

1. Solubility

2. Melting point.

3. Boiling point.

4. Color

5. Density.

charle [14.2K]3 years ago
4 0

Answer:

Ductility is a physical property of matter, as it can be measured or observed without the substance undergoing a chemical change. Ductility is the ability of a solid material to stretch under tensile stress, for example when a metal is stretched into a wire. The chemical nature of the metal isn't changed in this case. When you're trying to distinguish between chemical and physical properties, keep in mind that chemical properties are generally only observable when a material undergoes a chemical change. Examples of chemical properties are flammability, tendency to corrode and reactivity with a particular class of chemicals. A chemical property of most metals is that they react with acids. Some examples of physical properties, which don't involve chemical change, are melting and boiling points, density and color.

Explanation:

You might be interested in
Ninety nine percent of the atmosphere is composed of _____ and _____.
VARVARA [1.3K]

Answer:

Ninety nine percent of the atmosphere is composed of Nitrogen and Oxygen

8 0
3 years ago
Read 2 more answers
Why is it a good idea to wait at least an hour between eating and exercising?
Delvig [45]
This is because you have to let your food digest a bit before continuing your work out to prevent cramps and this like that.
8 0
4 years ago
Read 2 more answers
Explain how the water vascular system allows an echinoderm to move along the ocean floor. Please help!
astra-53 [7]

Answer: Sea stars move using a water vascular system. Water comes into the system via the madreporite. It is then circulated from the stone canal to the ring canal and into the radial canals.

Explanation: The radial canals carry water to the ampullae and provide suction to the tube feet.

3 0
3 years ago
Read 2 more answers
25 points hurry plz thank you “What is the effect of the type of food available on the frequency of different types of bird beak
maxonik [38]

Answer:

Explanation:

...then the bird beak changes because the bird beaks are the most vital physical feature that allows birds to catch and devous its prey.

7 0
3 years ago
Read 2 more answers
The curly toe phenotype is controlled by 4 genes that act in an additive manner. The environment does not have an effect on this
Sergio [31]

Answer:

  1. What is the highest number of risk units an individual can have with this model? 48 units of risk
  2. What is the phenotype of an individual of genotype AaBbCCDd? The individual has curly toes
  3. Is it possible for them to have a child with curly toes?

        Yes, the couple can have children with curly toes.

Explanation:

<u>Available data</u>:

  • The curly toe phenotype is controlled by 4 diallelic additive genes
  • Genes A, B, C, D  
  • A dominant allele has 6 units of risk
  • A recessive allele has 2 units of risk
  • Individuals with more than 35 units of risk have curly toes
  • Individuals with 35 or fewer risk units have straight toes

The term quantitative heritability refers to the transmission of a phenotypic trait in which expression depends on the additive effect of a series of genes.  

Polygenic heritability occurs when a trait results from the interaction of more than one gene. And these genes can also have more than two alleles. The action of many genes and alleles can cause many different combinations that are the reason for genotypic graduation.  

Quantitative traits are those that can be measure, such as longitude, weight, eggs laid per female, among others. These characters do not group individuals by any precise and clear categories. Instead, they group individuals in many different categories that depend on how the genes were intercrossed and distributed during meiosis. The result depends on the magnitude in which each allele contributes to the final phenotype and genotype. When they interact, they create a gradation in phenotypes, according to the level of contribution.

According to this information, and knowing how each allele contributes to the risk, we can say that the minimum units of risk are 16, determined by the recessive genotype aabbccdd. Each recessive allele contributes with 2 units of risk, so (aa=4units + bb=4 units + cc=4 units + dd=4 units) =  16 units.

Each time a dominant allele is present in the genotype, it adds 6 units to the total risk.    

What is the highest number of risk units an individual can have with this model?

48 units of risk, which corresponds to the genotype AABBCCDD. Each dominant allele contributes 6 units to the risk. There are 8 dominant alleles, so, 8x6=48 units.

What is the phenotype of an individual of genotype AaBbCCDd?

The individual has curly toes because it has a risk of 36 units, which is superior to the limit of 35 units. Dominant alleles A, B, C, C, D contribute with 30 units of risk (6x5), and recessive alleles a, b, d contribute 6 units of risk (3x2).

Cross:

Parentals) AAbbCcDd   x   AaBbCCDd

Gametes) AbCD, AbcD, AbCd, Abcd

               ABCD, ABCd, AbCD, AbCd, aBCD, aBCd, abCD, abCd

Punnett square)  AbCD                 AbcD               AbCd               Abcd

          ABCD    AABbCCDD     AABbCcDD     AABbCCDd     AABbCcDd

          ABCd    AABbCCDd      AABbCcDd     AABbCCdd      AABbCcdd

          AbCD    AAbbCCDD      AAbbCcDD    AAbbCCDd     AAbbCcDd

         AbCd     AAbbCCDd       AAbbCcDd     AAbbCCdd     AAbbCcdd

         aBCD     AaBbCCDD      AaBbCcDD      AaBbCCDd     AaBbCcDd

         aBCd     AaBbCCDd      AaBbCcDd      AaBbCCdd     AaBbCcdd

         abCD     AabbCCDD      AabbCcDD      AabbCCDd    AabbCcDd

         abCd      AabbCCDd      AabbCcDd      AabbCCdd        AabbCcdd

F1) 16 /32 = 1/2 individuals in the progeny are expected to have curly toes

     16 /32 = 1/2 individuals are expected to have straight toes

Is it possible for them to have a child with curly toes?

Yes, the couple can have children with curly toes.

To have curly toes, individuals must have more than 35 units of risk.

To have more than 35 units, individuals´ genotypes must carry at least 5 dominant alleles (which equal 30 units).

8 0
3 years ago
Other questions:
  • Where do plants get the energy they need to survive?
    14·2 answers
  • Which type of molecule is used for catalyzing chemical reactions in the cell
    10·1 answer
  • Can someone please answer all these questions?
    15·1 answer
  • mitosis A division happens in the next step. Which describes the cells after the next step is complete? A. The cells will have n
    13·1 answer
  • Which of the following is true of the spread of viruses? A. If a virus spreads to larger areas such as full continents, it is re
    14·2 answers
  • ANSWER FAST PLEASE!
    12·1 answer
  • When we think about the effects of air pollutants we immediately think of respiratory issues. Exposure to one criteria
    13·1 answer
  • In an experimental study, what variable is measured? Environmental Science
    14·1 answer
  • Help asap !!!!!!!!!!!!!!!!!!
    14·2 answers
  • The activities of the digestive system are regulated by? hormones. intrinsic nerve plexuses.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!