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Related Questions
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.
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Answer:b
Explanation:
how does Sexual reproduction leads to genetic variation.
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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.
• 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
Can someone help me please.
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true or false, immersion oil can be used with all lenses?
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Answer: True
I hope this helped you!
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
Proof: Becauseeee
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, h², 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
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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 days → Xs the narrow-sense heritability for flowering time is 0.2 → h²According 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 X₁X₁ = R + X₀
We already know that X₀ = 100 days,
Now we need to calculate R.
R = h²SDWe know that h² = 0.2,
Now we need to calculate SD
SD = Xs - X₀Xs = 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 = h²SDo 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 valueX₁ = R + X₀
X₁ = - 2 + 100
X₁ = 98
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
Summarize your findings in a short report of 150 words. Include your hypothesis, observations, data, calculations, and conclusion. The answers to the questions below should be included in your conclusion.
Why didn't the box slide off the table before you put enough coins in the bag?
What was the coefficient for the smooth surface? For the rough surface?
What was the difference between the two coefficients? What caused this difference?
What factors caused a margin for human error in this investigation?
Would the coefficient vary if you tied the string to a similar object of different masses, but on the same surface? Explain.
What did you learn from this investigation? Be thoughtful in your answer.
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Answer:
Summarize your findings in a short report of 150 words. Include your hypothesis, observations, data, and conclusions. Be sure to answer the questions below as well as including your own findings and thoughts in your summary.
How many coins did it take to pull the bag off the table without the rollers (pencils)? With the rollers?
Why didn't the box slide off the table before you put enough coins in the bag?
What happened differently when you put the rollers underneath the matchbox? Why?
What factors caused a margin for human error in this investigation? What was your margin of error when you repeated this experiment?
What was the coefficient of friction for the matchbox? Would the coefficient vary if you tied the string to a similar object of different mass? What about a different object with the same mass? Explain.
What did you learn from this investigation? Be thoughtful in your answer.
Explanation:
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.
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.
SOMEONE HELP PLEASE
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Name an organism where 10% of the energy that is passed on would be found?
O A. buzzard
O B. mouse
O C. fox
O d. ladybird
Does anyone knows than answer ? Help me !
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Out of the organisms listed, the one that is likely to have 10% of the energy passed on is the buzzard. Therefore, option (A) is correct.
What is second law of thermodynamics?In an ecosystem, only about 10% of the energy available at one trophic level is passed on to the next trophic level. This is due to the second law of thermodynamics, which states that energy is lost as it moves through a system.
Out of the organisms listed, the one that is likely to have 10% of the energy passed on is the buzzard (option A). Buzzards are predators that feed on a variety of small animals, including mice, foxes, and ladybirds. As a result, they occupy a higher trophic level in the food chain and receive only a small fraction of the energy that is available at lower trophic levels.
Learn more about second law of thermodynamics, here:
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Which component of the genetic code differs between DNA and rna
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Answer
The differences between dna and rna are:
DNA is a double helix RNA is a single helix
DNA contains deoxyribose as its sugar and RNA contains ribose
DNA has the bases adenine, thymine, cytosine, and guanine but RNA has the bases adenine, uracil, cytosine, and guanine
Explanation:
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 :)
How many million years ago did the supercontinent Pangaea form
Answers
Answer:
335 million years ago
Explanation:
Pangaea or Pangea ( /pænˈdʒiːə/) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and began to break apart about 175 million years ago.
Water there is return to the environment at the secondary treatment is known as
Answers
Answer:
Effluent water
Explanation:
Effluent is a water that is returned to the environment after secondary treatment. It is a liquid waste that is discharged in the sea or river.:)
If warm air rises, describe what will happen to that air? Will give branliest!
Answers
Answer:
Cold Air Will Sink
Explanation:
As hot air rises cold air will sink, cold air is more heaveir than hot air.
Is the K-T extinction the only mass extinction in Earth’s History?
You can just give a simple answer like yes or no.
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Answer:
No
Explanation:
Ranks 3rd in severity of the five major extinction episodes that punctuate the span of geologic time.
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.
Insulin is an example of a toxin that can be a useful in the prescribed amount, but deadly if an overdose is taken.
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Please somebody help
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When a person undergoes gastric bypass surgery, can their hunger, appetite, and
satiety cues change?
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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.
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?
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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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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.
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.
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.
You first use PCR to amplify the fragment so that there is sufficient DNA for sequencing. You carry out dideoxy sequencing and then separate the products of the sequencing reactions by gel electrophoresis. Draw the bands that should appear on the gel from the four sequencing reactions.
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Answer:
The first attached figure below shows the design of an agarose gel with four sequencing reactions. The second figure presents a photo of an agarose gel, so that you can better understand how the bands are represented in this gel.
Explanation:
To view the bands of four sequencing reactions on an agarose gel, you will need to use a melted agarose gel, plastic combs suitable for that reaction and a container suitable for that type of gel. You will place the plastic combs in the container and pour all the gel into the vat and wait for the melted gel to solidify. The plastic combs will form holes in the hardened gel where the DNA samples will be placed.
Once the gel is hardened, you will remove the plastic combs and begin to apply the sequenced DNA.
The sequenced DNA samples will be mixed with a dye, usually bromophenol blue, which will allow you to visualize the bands formed on the gel. You will also apply the dye to a sample without DNA containing only the dye, which serves as a comparison for the size of the bands.
Each sample of DNA will be plated in the column of holes formed by the plastic combs. Then, this container, with the gel, will be placed in a larger container that contains a loading buffer. The larger container will be closed and an electric field will be applied that will force the DNA samples to be moved from one pole to another inside the container, in this case, the samples leave the negative pole for the positive pole.
After a few minutes, it is possible to visualize the DNA displacement and at the end of the procedure it will be possible to visualize the formation of bands as shown in the drawing and in the figure below. The size of these bands can be compared and analyzed.
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
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.
What species are currently evolving for aquatic environments?
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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 ♥