the valency of flourin is 1 what is the valence electron​

Answers

Answer 1

Answer:

Fluorine has 7 valence electrons and would need another one to have a full outer valence electrons.


Related Questions

Which explains why the nuclear membrane breaks down during cell division?
So the cytoplasm can be divided.
So the duplicated chromosomes can be separated into new cells.
So the chromosomes can be replicated.
So it makes it easier for the DNA to be mutated.

Answers

So the chromosome can be replicated is the awser

Cells use ------ to take in large molecules or other cells

Answers

Endocytosis cells use endocytosis to take in large molecules or other cells

Answer:

Active transport by endocytosis. there is your answer.

Explanation :

Phagocytosis is the process by which cells ingest large particles, including other cells, by enclosing the particles in an extension of the cell membrane and budding off a new vesicle. During pinocytosis, cells take in molecules such as water from the extracellular fluid.

why is the dominant allele seen in a heterozygous individual

Answers

Answer: Since it's the DOMINANT allele that means that it will take over reccesive allele that's why it's shown.

Explanation: A heterozygous individual is an individual where the have both the dominant and reccesive allele for a trait. The dominant allele will always be stronger than the reccesive allele. This results in the dominant allele being shown.

A researcher sequences the genome of a variety of bacterial and eukaryotic cells. She finds that the bacterial genome is smaller, but that there are more genes for a given number of base pairs in the eukaryotic cells. In other words, there are fewer genes per unit of length of DNA in the eukaryotic cells. What do you predict she will find if she examines the DNA more closely

Answers

From this observation, it is possible to conclude that there are more repetitive sequences in the eukaryotic DNA than in the bacterial DNA. Prokaryotic genes do not contain introns.

Introns are internal non-coding segments of eukaryotic genes that must be removed to produce the final mature mRNA.

In prokaryotic genomes, there are no introns, and genes are expressed in groups known as operons.

Eukaryotic genomes contain highly repetitive intergenic (regulatory) and intragenic (introns) non-coding regions.

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What is the haploid number of this species ?

Answers

Answer: 3

Explanation:

Skin is an epithelial tissue.give reason.​

Answers

Answer:

well ik when people including myself use there hand witch is made out of skin as a tissue when they sneeze so there that's how we started this pandemic

Explanation:

Definition Of polar molecules and nonpolar molecules please?​

Answers

Answer:

Non polar molecules are symmetric with no unshared electrons. Polar molecules are asymmetric, either containing lone pairs of electrons on a central atom or having atoms with different electronegativities bonded.

Explanation:

When things are different at each end, we call them polar. Some molecules have positive and negative ends too, and when they do, we call them polar. If they don't, we call them non-polar. Things that are polar can attract and repel each other (opposite charges attract, alike charges repel).

Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.

A change in the sequence of bases in a DNA molecule is know as

Answers

Answer:

A point mutation is a change in the base sequence of a DNA molecule.

Explanation:

Sofia, a scientist, wants to change the DNA of a sexually reproducing organism and have the
new DNA present in every cell of the organism. In order to do this after fertilization, she would
change the DNA in which of the following?

A. Zygote

B. Placenta

C. Testes of the father

D. Overuse of the mother

Answers

C is the correct answer because it is what that determines the gene

Question:

Sofia, a scientist, wants to change the DNA of a sexually reproducing organism and have the

new DNA present in every cell of the organism. In order to do this after fertilization, she would

change the DNA in which of the following?

A. Zygote

B. Placenta

C. Testes of the father

D. Overuse of the mother

Answer :

C. Testes of the father

ありがとうございました!

Explanation:

Men determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome. An X chromosome combines with the mother's X chromosome to make a baby girl (XX) and a Y chromosome will combine with the mother's to make a boy (XY)

Choose ALL of the correct answers.

Which of the following must be true in order for natural selection to occur?

Group of answer choices

There must be variation in traits in the population

The trait must cause the individual to evolve

The trait must have no other advantage in fitness

The trait must be for the good of the species

The trait must be heritable

The trait must advance the goal of evolution

Answers

Answer:

For natural selection to occur, it is true that there must be genetic variation in the population.

Explanation:

According to evolution, natural selection implies the changes that occur in the genotype of a species, due to the effect of environmental factors, and which guarantee its survival through adaptive evolution.

For natural selection to occur, three fundamental conditions must exist:

A trait that can be inherited from one generation to another.

The trait is subject to variability between subjects of the same species.

Genetic variability can determine the possibility of reproductive success and survival.

Therefore, a necessary factor for natural selection to occur is that genetic variability exists in the population.

For natural selection to occur :-

There must be variation in traits in the population.The trait must cause the individual to evolve.The trait must be for the good of the species.The trait must be heritable.The trait must advance the goal of evolution.

What is Evolution?It is the change in the characteristics of a species over several generation.It relies on the process of natural selection.

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Carla was recently diagnosed with a brain tumour and has since completely lost
her appetite. The brain tumour is likely located in her:
dorsal hypothalamus
lateral hypothalamus
ventromedial hypothalamus
medial hypothalamus

Answers

Answer:

hypothalamus

Explanation:

Hunger is partly controlled by a part of your brain called the hypothalamus, your blood sugar (glucose) level, how empty your stomach and intestines are, and certain hormone levels in your body. Fullness is a feeling of being satisfied.

The core of the immune system is made up of
red blood cells.

platelets.

white blood cells.

intact skin.

intact mucus membranes.

Answers

Answer:

red blood cells

Explanation:

white blood cells are used for fighting against diseases

The answer is White blood cells

please help me i’ll give you brainlist

Answers

Answer:

B) Daughter Cells

Explanation:

When a cell divides, the parent cell divides to form two daughter cells.

Answer:

The answer is daughter cells.

Hope that helps. x

narvez 5. Everyone in Dobby's family has a long nose and they brag that they are from a purebred line. Viola has a stubby nose. Draw a punnett square to determine the possible types of noses their children could have had. (Use the genotypes from #2) a. List the possible genotypes and phenotypes for their children. b. What are the chances of a child with a long nose? out of or % c. What are the chances of a child with a stubby nose? out of st or__% d. Would their children be considered purebred like Dobby? Explain:​

Answers

Assuming a single diallelic gene coding for the trait and expressing complete dominance, the phenotypes, genotypes, and probabilities of getting each of them vary according to the parentals' genotypes. See the options below.

---------------------------------

Since I do not have the genotypes from #2, I will provide different potential scenarios for this question.

I advise you to check on them and see which one matches the genotype from #2.

Let us assume a single diallelic gene is coding for the trait and expresses complete dominance.

SCENARIO 1  ⇒ long nose is the dominant trait

Let us say that

L is the dominant allele and codes for long nosel is the recessive allele and codes for stubby nose

Since long nose is dominant over stubby nose

LL and Ll ⇒ long nosell ⇒ stubby nose

If Dobby comes from a purebred family and has long nose, his genotype must be LL.

And if Viola has stubbi nose, her genotype must be ll.

Cross 1

Parentals)    LL   x    ll

Gametes)  L    L     l    l

Punnett square)    L       L

                      l      Ll      Ll

                      l      Ll      Ll

F1) Genotype ⇒ 100% heter0zyg0us Ll

     Phenotype ⇒ 100% long-nosed

There is 100% chances for a child to have a long noseThere is 0% chances for a child to have a stubby noseThese children are not purebred

                                             **********

SCENARIO 2  ⇒ Stubby nose is the dominant trait

Let us say that

S is the dominant allele and codes for stubby noses is the recessive allele and codes for long nose

Since stubby nose is dominant over long nose

SS and Ss ⇒ stubby nosess ⇒ long nose

If Dobby comes from a purebred family and has long nose, his genotype must be ss.

And if Viola has stubbi nose, her genotype must be either SS or Ss.

There are two possible crosses.

Cross 1 : Violet is h0m0zyg0us dominant SS

Parentals)    SS   x    ss

Gametes)  S    S     s    s

Punnett square)   S       S

                      s     Ss     Ss

                      s     Ss     Ss

F1) Genotype ⇒ 100% heter0zyg0us Ss

     Phenotype ⇒ 100% stubby-nosed

There is 100% chances for a child to have a stubby noseThere is 0% chances for a child to have a long noseThese children are not purebred

Cross 2: Violet is heter0zyg0us, Ss

Parentals)    Ss   x    ss

Gametes)  S    s     s    s

Punnett square)   S       s

                      s     Ss     ss

                      s     Ss     ss

F1) Genotype ⇒ 50% heter0zyg0us Ss and 50% h0m0zyg0us recessive ss

     Phenotype ⇒ 50% stubby-nosed and 50% long-nosed

There is 50% chances for a child to have a stubby noseThere is 50% chances for a child to have a long noseThese children are not purebred

----------------------------

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1. There are two birds that live in the same type of tree, same climate, and eat the same type of fruit. However, one is nocturnal (awake at night) and the other is diurnal (awake in the day). Explain why these two birds are considered to have different niches.​

Answers

Answer: different species

Explanation: They live in the same community like a Gouldian finch and a Double-Barred finch but are different species

However, one is nocturnal (awake at night) and the other is diurnal (awake in the day) as it consist of different species and they live in the same community like a Gouldian finch and a Double-Barred finch but are different species.

What shows the low light in the evening?

The hours of low light in the evening shows that it would be when humans would be most at risk from dangers. Species might make sense to seek shelter during this period.

As a result of their divergent evolutionary paths, various species have evolved in various ways to adapt to their habitats. The reason a certain species is nocturnal or diurnal has a variety of different potential causes. Perhaps at night, when light levels are low, when humans would be most exposed to dangers. The decision to seek sanctuary during this time may therefore be justified. Considering the various predatory dangers that mice and rats encounter, it is possible that being active at night reduces the threat posed by predators like birds who utilize their visual senses to identify prey.

Therefore, However, one is nocturnal (awake at night) and the other is diurnal (awake in the day) as it consist of different species and they live in the same community like a Gouldian finch and a Double-Barred finch but are different species.

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-. What describes the conversion of ADP to ATP?

Answers

Answer:

Two processes convert ADP into ATP: 1) substrate-level phosphorylation; and 2) chemiosmosis. Substrate-level phosphorylation occurs in the cytoplasm when an enzyme attaches a third phosphate to the ADP (both ADP and the phosphates are the substrates on which the enzyme acts).

Explanation:

Heeeeeeeeeeeeelp please help me with this now

Answers

Answer:

1. Temperature of the Earth over time

2. warm

4. That’s you.but I personally think it’ll gradually go up

5. Depends how you answered it, tell me if you need help or not

Explanation:

1.It talks about the overall graph

2.The Line shows and is labeled Average, the straight line shows the average temperature (is that confusing?)

4-5.Global warming and the graph helps show the increase of temperature so far and it’s educated guess

How does the environment influence the traits of an individual?

Answers

Answer:

If an organism is living in an unhealthy environment, that could lead to hunger, dehydration, no shelter, and possibly death.

Explanation:

How can accidental transfer of DNA impact a crime scene investigation? In addition, explain why accidental DNA transfer cannot be used as an excuse to throw away all DNA evidence found at a crime scene?

Answers

Answer:

orensically valuable DNA can be found on evidence that is decades old. However, several factors can affect the DNA left at a crime scene, including environmental factors (e.g., heat, sunlight, moisture, bacteria, and mold). Therefore, not all DNA evidence will result in a usable DNA profile.

Explanation:

1. The nose helps the body keep its balance.

a. True
b. False

Answers

Answer:

false

Explanation:

The ears help the body keep it's balance. Most issues with the balance arise from conditions affecting the inner ear.

what are the three parts of the data analysis section of a lab report?​

Answers

Answer:

1) rough reading

2)initial reading

3)final reading

Explanation:

those three are always important for every lab report

What pattern would you expect to see in measurements taken in the Southern Hemisphere over course of a year?

Answers

Answer:

The CO2 concentrations would be lowest in April-May and highest in September-October.

Explanation:

process of diffusion​

Answers

A diffusion process is a solution to a stochastic differential equation

What is the usual tone of a argumentative essay?

Answers

Answer:

I would say that what the essay is about they're most likely going to be biased disagreeable or agreeable. The tone may be mad.

Explanation:

Only 3% of the water on earth is fresh water, the kind we need for drinking and growing food. Of that 3% , how much is locked in ice caps, and permanent snow.

Answers

Answer:

2.5%

Explanation:

Based on the chart, describe the trends that can be observed in animal and plant fossils as they evolved over time. Use evidence from the chart to support your conclusions.

Answers

Based on the chart, we can conclude that the first vertebrates were fish. Moreover, the chart also shows that flowering plants are the last plant taxonomic group that emerged on Earth.

In this case, the chart suggests that the earliest vertebrates (fish) evolved during the Ordovician period.

The main animal groups that emerged during vertebrate evolution include (in this order) amphibians, reptiles, mammals, birds and finally humans.

Moreover, according to the chart, the latest major group of plants to evolve were flowering plants during the Cretaceous period.

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scientists have discovered a mutation that prevents the formation of which are responsible for separating chromosomes

Answers

The chromosomes are separated by a structure called the mitotic spindle. The mitotic spindle is made of many long proteins called microtubules, which are attached to a chromosome at one end and to the pole of a cell at the other end. The sister chromatids are separated simultaneously at their centromeres

Which of the following are consequences of the Dust Bowl of the 1930s?

I. Banks extended loans to farmers to help rebuild impacted area
II. New policies to prevent the dust bowl from happening again
III. Mass migrations and widespread poverty and lack of food

I only
III only
I and II
II and III

Answers

Answer:

I think it is the first one

Explanation:

I

Explain the difference between the inner core and outer core. What Earthly feature do they produce that protects Earth from solar weather?

Answers

The Earth core has two layers: the outer core, and the inner core. Moreover, the magnetic field protects Earth from solar weather.

The Earth's magnetic field is an invisible layer that protects life from the majority of the solar wind blast.

The magnetic field covers us from charged solar particles that crash into it and then flow around it.

Moreover, the Earth core has two layers: the outer core and the inner core, which are separated by a boundary known as the Bullen discontinuity.

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Explain why the accidental and intentional introduction of new pests is likely to be an ongoing problem for future agriculture, and include possible approaches to solving the problem.

Answers

The introduction of pests in a new geographic region may have devastating consequences on crop yields. Invasive pest species often don't have natural predators or exhibit higher adaptive fitness.

Invasive species represent an important subject of concern in agriculture because they have the potential to drastically reduce crop yields.

Generally, invasive pest species don't have natural predators or exhibit higher adaptive fitness compared to well-established natural pest species.

In consequence, these species (invasive species) may cause considerable harm to crops.

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