1. What is an opal as compared to other “pretty rocks"?|

Answers

Answer 1
examples of different kinds of opals are ethiopian opal, fire opal, precious opal, synthetic opal and black opal. opal is a gemstone and birthstone for those born in october. opal can be used for many types of jewellery like rings or necklaces

Related Questions

true or false, immersion oil can be used with all lenses?

Answers

Answer: True

I hope this helped you!

A researcher is crossing two organisms that are heterozygous for three Mendelian, unlinked traits (XxYyZz). What is the fraction of offspring that are predicted to have the genotype xxyyzz?

Answers

Answer:

the fraction of offspring that are predicted to have the genotype xxyyzz = 1/64

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

According to the question, a researcher is crossing two organisms that are heterozygous for three Mendelian, unlinked traits (XxYyZz) the fraction of offspring that are predicted to have the genotype xxyyzz = 1/64.

as the crossing over between XxYyZz * XxYyZz.

What are the 3 principles of Mendelian genetics?

The fundamental principles of Mendelian inheritance by Mendel's three laws:

The Law of Independent Assortment, Law of Dominance, and Law of Segregation.

Thus,the genotype xxyyzz = 1/64.

To learn more about Mendelian genetics click here:

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When a person undergoes gastric bypass surgery, can their hunger, appetite, and
satiety cues change?

Answers

Answer:

Yes

Explanation:

Yes, after an individual undergoes gastric bypass surgery many different metabolic hormones become affected by the surgery. Such hormones include  Gherlin, Leptin, Gastrin, and Insulin, all of which can affect the individual's hunger, appetite, and satiety cues. This is mainly because the surgery greatly shrinks the amount of food that an individual can eat at any given time. Since it basically shrinks the stomach by creating a small pouch where food enters and goes straight into the intestinal track it gives the individual the feeling of being full with much less food.

what is natural resoures typical one?'

Answers

Explanation:

A natural resource is what people can use which comes from the natural environment. Examples of natural resources are air, water, wood, oil, wind energy, natural gas, iron, and coal.

Air water wood oil wind energy natural gas iron coal

Michelle is looking at an organism that is eukaryotic and multicellular, and it also feeds on dead and decaying organisms. Which kingdom does it belong in?
fungi
plants
bacteria
archaebacteria
protists
animals
Pls answer quick

Answers

Answer:

Fungi

Explanation:

Fungi (such as mushrooms) are eukaryotic and multicellular. They are decomposers, which means they feed on dead and decaying organisms. If the question was only asking for one that feeds on dead and decaying organisms, the answer could also be bacteria, for they are also decomposers, but bacteria are prokaryotes and unicellular.

Residents in a coastal town in Japan are hastily preparing to evacuate after an earthquake a few miles away in the
ocean. They have been warned of a tsunami headed their way. Which of the following professionals would provide this
warning?
O geochemist
seismologist
geological engineer
environmental engineer

Answers

Seismologist is the correct answer

Which structure produces blood cells?

Answers

Answer:

Blood cells are produced in the bone marrow of the body more specifically they become blood cells from first being stem cells which then divide until they reach a mature red blood cell stage. ( or other types of cells, stem cells are like the blank template for either red blood cells, white blood cells, or platelettes.)

Explanation:

Red blood cells, most white blood cells, and platelets are produced in the bone marrow, the soft fatty tissue inside bone cavities. Two types of white blood cells, T and B cells (lymphocytes), are also produced in the lymph nodes and spleen, and T cells are produced and mature in the thymus gland.

If Planet Y orbits the Sun but does not rotate on its axis at all, how long would a day be on Planet Y?

A. day would be shorter than a year.
B. day would be exactly the same as a year.
C. day would be longer than a year.
D. day would be infinitely long.

Answers

Answer:b

Explanation:

In order for a protein to be an integral membrane protein it would have to be which of the following?

Answers

Answer:

Integral membrane proteins

Explanation:

also called intrinsic proteins, have one or more segments that are embedded in the phospholipid bilayer. Most integral proteins contain residues with hydrophobic side chains that interact with fatty acyl groups of the membrane phospholipids, thus anchoring the protein to the membrane.

What is the major driving force of the oxygen cycle?
A.
photosynthesis
В.
germination
C.
reproduction
D.
water

Answers

Answer:

a.

Explanation:

Engery is the driving force of the oxygen cycle is photosynthesis itself, which is responsible for the creation and maintenance of earth's atmosphere.

A that’s the awnser to the question

Help me out pls and thanks !!!

Answers

Answer:

C

Explanation:

fungi play a major role as decomposers and recyclers in the wide variety of habitats in which they exist.

What species are currently evolving for aquatic environments?

Answers

Answer: Hello Luv.......

How whales and dolphins evolved for life at sea ... important ways to allow these animals to transition from terrestrial to aquatic environments.

Explanation:

From tropical corals to tawny owls, some species are already being pushed to ... For instance, an experiment growing brewer's yeast in environments with deadly ... Before there was "Climate Change" there was STILL evolution. ... and Horses Dig Wells That Provide Water for a Host of Desert Species.

Hope this helps.

Mark me brainest please...

Anna ♥

12. Where is the rate of primary production the lowest?

a. upwelling along coasts

b. in the middle of the current gyres

c. along the Equator

d. around Antarctica in the summer

e. coasts

Answers

Answer:

Option B, in the middle of the current gyres

Explanation:

The zones of upwelling have high productivity as they have adequate climate and weather condition along with availability of nutrients. The same is applicable for Equator and coastal regions. The productivity of Antarctica is low but not less than that of  current gyres as in the middle of the current gyres there are high current streams that reduces the biological productivity.

Hence, option B is correct

In certain species of plants, the color Yellow (Y) is dominant to the color white(y). If you cross a purebred dominant mom with a dad that is recessive,
what is the probability of an offspring being white?
A 0%
B 25%
C 50%
D 75%
E 100%

Answers

25%

Proof: Becauseeee

Insulin is an example of a toxin that can be a useful in the prescribed amount, but deadly if an overdose is taken.

Answers

The statement is true

A breeder is trying to decrease the maturation time in a population of sunflowers. In this population, the mean time to flowering is 100 days. Plants with a mean flowering time of only 90 days were used to produce the next generation. If the narrow-sense heritability for flowering time is 0.2, what will the average time to flowering be in the next generation

Answers

Answer:

The next generation average time to flowering will be 98 days.

Explanation:

Before answering the question, we need to know a few concepts.

Artificial selection is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations.  Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced.  The selection differential, SD, is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xs). So,  

SD = Xs - X₀

Heritability in the narrow-sense, , is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.  

h² = R/SD

The response to selection (R) refers to the metric value gained or lost from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.  

R = h²SD  

R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),  

R = X₀ - X₁

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

Now that we know these concepts and how to calculate them, we can solve the proposed problem.

Available data:  

trying to decrease the maturation time in a population of sunflowers.the population mean time to flower is 100 days X₀Chosen parental Plants mean flowering time is 90 daysXs the narrow-sense heritability for flowering time is 0.2

According to what we sow previously, we need to find out the value of X₁, which reflects the next generation average time to flowering.

We know that R = X₁ - X₀, so we need to clear this formula to calculate X₁

X₁ = R + X₀

We already know that X₀ = 100 days,  

Now we need to calculate R.  

R = h²SD

We know that h² = 0.2,  

Now we need to calculate SD

SD = Xs - X₀

Xs = 90 days → Parentals media flowering time

X₀ = 100 → Population media flowering time

SD = Xs - X₀  

SD = 90 - 100  

SD = - 10 days

Knowing this, we can calculate R

R = h²SD

o h² = 0.2  

o SD = - 10

R = 0.2 x (-10)

R = - 2

Finally, once we know the R-value we can calculate the X₁ value

X₁ = R + X₀

X₁ = - 2 + 100

X₁ = 98

Guide Questions:
1. Who/What do you think are the possible suspects/cause for Mary's
death?
2. Among your list of suspects/causes for Mary's death, who/which do
you think is really the true culprit? Why do you say so?
3. How will you relate the essence of the song to your learnings from
this module?​

Answers

Answer: 1. :Combat the Pandemic All Together as a Global Family, Stop Disinformation And Conspiracy. Pandemic can happen anywhere in the world, Time to investigate its origin and evolution. 2. he main suspect in her murder is the character played by Richard Marx in the video (for argument's sake, let's refer to our unnamed man as Richard. FACT #3: The scarf that was found around Mary's neck did belong to Richard. We know this because we saw Mary pulling on it when Richard was wearing it. 3. by showing what you learned.

Explanation:

The song Hazard is a fictional song set in the small town of Nebraska. The song revolves around the mystery of the death of the song composer Richard Max.

In the given question:  

1. The primary suspect of Mary's death is Richard. He is being considered as a possible suspect because the scarf around Mary's neck was of Richard.  

2. Mary, Richard's partner was disappeared in suspicious circumstances. The real culprit is suspected to be Richard because he was the last person observed with Mary.

3. The video describes the murder mystery, which teaches a life lesson that a person should not murder and try to be innocent.  

The disappearance of the lady was involved in the murder and not getting punished for the same is a crime.  

 

To know more about Mary's death, refer to the following link:

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4.
Which one of the following is not a simple sugar?
A. Glucose.
B. Galactose.
C. Fructose.
D. Sucrose

Answers

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4. Which one of the following is not a simple sugar?

D.Sucrose

Glocuse, Fructose, and Galactose are simple sugars.

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#Hope it helps!

Sucrose is not a simple sugar because it is made up of  both glucose and fructose so sucrose is called a disaccharide. Therefore, option (D) is correct.

What is simple sugar?

A monosaccharide, often known as a simple sugar, is a form of carbohydrate that cannot be broken down into smaller molecules of glucose and is thus readily absorbed by the body.

There are three primary kinds of simple sugars: glucose, fructose, and galactose. All of these sugars have the same chemical composition, but their structures are quite different from one another.

Sucrose on the other hand is a disaccharide composed of both glucose and fructose. Therefore, it is not a simple sugar and can be broken down into smaller or simpler molecules.

Learn more about simple sugars, here;

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Which type of reproduction provides organisms with the following disadvantages? Organisms must grow until mature enough to produce sex cells. Finding a mate uses energy and takes time.

A. Asexual Reproduction

B.Sexual Reproduction​

Answers

Answer:

The answer is B.

Explanation:

Sexual reproduction is a type of reproduction in which you have to find a mate of the same species to reproduce.

Explain how changes in earths systems affect the growth of life on earth

Answers

Answer: The presence of small amounts of heat-trapping greenhouse gases in the atmosphere warms Earth's surface, resulting in a planet that sustains liquid water and life. Changes in climate conditions can affect the health and function of ecosystems and the survival of entire species.

Explanation:

how does Sexual reproduction leads to genetic variation.​

Answers

Answer:

Sexual reproduction provides genetic diversity because the sperm and egg that are produced contain different combinations of genes than the parent organisms. ... Sexual reproduction involves meiosis, which is the process of a cell doubling its DNA, shuffling its genes, and then dividing the shuffled DNA among four cells.

Sexual reproduction leads to genetic variation due to:

• random fusion of gametes
• random assortment of chromosomes
• Gametes of each parent are a result of meiosis meaning gametes are genetically different so when they fuse together they form a new combination of genes in the zygote

12. Given the human pedigree to the right, is the trait indicated by
the darkened shapes a dominant or a recessive trait? How can
you tell?

Answers

Answer:

Darkened shapes are recessive

Explanation:

In the pedigree shown, we can see that 2 parents that are unshaded shapes have 2 children that are shaded shapes. This would be impossible if shaded shapes were dominant and unshaded shapes were recessive. This is because parents that have a recessive trait have 2 of the same alleles. So if 2 parents that both have a recessive trait have a child, the child will definitely have that trait. But we can see that this is not the case, the parents have 2 offspring that have different phenotype from the parents. This must mean the parents are heterozygous, meaning that they both have 2 alleles that are different. The dominant allele masks the recessive allele, so the dominant allele is expressed. In this case, the children inherited 2 recessive alleles, 1 from each parent, making them have a different phenotype from the parents.

Need help! Will give brainliest

Why does this happen—> the scenario is below;

A comet in space continues to move without slowing down or speeding up.

Answers

Answer:

because there is no force acting on the comet that is why it will go forever in the same velocity

Explanation:

newton's first law

Hormones and secretions of the nervous system are chemical messengers that:

A. store genetic information

B. carry out the circulation of materials

C. extract energy from nutrients

D. coordinate system interactions​

Answers

Hormones and secretions of the nervous system are chemical messengers that:

D. coordinate system interactions

Hormones and secretions of the nervous system are chemical messengers coordinate system interactions​. Thus, option "D" is correct.

What are Antidiuretic hormone?

Antidiuretic hormone that is synthesized and produced in the brain by the hypothalamus, is secreted from the pituitary gland, where it is stored.

This hormone is released into the blood stream in response to changes in the water balance in the blood. This hormone helps the kidneys to control and regulate the amount of water in the blood

Thus, option "D" is correct, coordinate system interactions​.

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a. una
b.scapula
c.sterum
d.clavicle

Answers

Answer:

It is Sternum

Explanation:

The sternum or breastbone is a long flat bone located in the central part of the chest. It connects to the ribs via cartilage and forms the front of the rib cage, thus helping to protect the heart, lungs, and major blood vessels from injury.

Which of these is an example of point-source pollution?

A. Air pollution from all the airplanes at an airport

B. Wastewater from a suburban development

C. Air pollution from the smokestack of a factory

D. Wastewater from a metropolitan area

Answers

My guess would be c


Hope this helps

Answer: C) Air pollution from the smokestack of a factory.

Explanation:

5. One of the most important steps to achieve a more sustainable future is to reduce a. Water conservation b. Overconsumption c. Population growth d. Both B and C​

Answers

Answer:

B.

*Read the explanation plz

Explanation:

A actually increases sutainability, and C is just wrong. It's technically saying that we should not let humans be born, we shouldn't let people get pregnant, which of course no one is gonna listen to. So B is right because if we consume too many things, the next generation won't have as many resources as they need to survive.

Why are cetacean are smarter than primates?

Answers

Answer:

well no duh we humans we smart and we invented half the stuff in the world

Explanation:

Answer:

Evolution and different environments.

Explanation:

Primates are intelligent in their own ways, such as motor control, the use of hands and feet simultaneously, control of both hands for different things at the same time.

Dolphins for example, however, they lack the limbs that primates do, so they don't need motor control as much as primates. They evolved to be very social animals, and that allows them to excel in groups while maintaining a pattern seeking brain much like primates, without the motor control capabilities.

If a cell has a haploid(n) number of 10, what is the diploid (2n) number

Answers

Answer:

anser is 20 thank youjnsbsb

Answer:

20

Explanation:

2n=2×10=20

thats the diploid of 10

In which stage of mitosis do chromosomes first appear?
A
prophase
B
metaphase
anaphase
D
telophase

Answers

Answer:

Hi, there

Prophase

Prophase is the first stage in mitosis, occurring after the conclusion of the G2 portion of the interphase. During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase.

Explanation:

Hope this helps :)

A...........................
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