Answer:
After an organism's soft tissues decay in sediment, the hard parts — particularly the bones — are left behind. Water seeps into the remains, and minerals dissolved in the water seep into the spaces within the remains, where they form crystals. ... If that mold gets filled with other minerals, it becomes a cast.
Explanation:
Answer:
Explanation:
Water seeps into the remains, and minerals dissolved in the water seep into the spaces within the remains, where they form crystals.
Which areas of the ocean experience the greatest variation in salinity?
Answer:
The Atlantic ocean is the saltiest
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1. Which statement below is true?
A. The Earth projects a shadow on the moon.
B. The moon is always half lit by the sun no matter where it is.
C. As the moon travels around the Earth, the Earth shadows portions of it.
D. The Earth rotates around the moon causing a difference in light and shadows.
Answer:
B
Explanation:
No matter the rotation, the sun is still covering a portion of the moon.
Suppose you cut open a leaf in cross section and observed stomata
on both the upper and underside of the leaf. What would you classify this leaf as, a
Monocot or a Eudicot?
True or False: Trees, vegetation, and animal waste are all considered to have economic value.
The CJ bacteria in the chickens at Monita Farms have a high frequency of the allele that causes FQ resistance. If genetic drift was the cause, would this allele also be in bacteria at the Original Farm?
Answer:
Yes
Explanation:
Genetic drift refers to a random change in the allelic frequency of a population through many generations. The founder effect is an especial case of genetic drift. Yes, the resistance allele was also at the Original Farm.
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Before answering, let us review some framworks.
Genetic drift is an evolutive force. It is the random change that occurs in the allelic frequency of a population through generations. Its effects are harder in a small-sized population, meaning that the magnitude of this change is inversely related to the size of the original population. Genetic drift results in some alleles loss -including the beneficial ones-, while some other alleles get fixated. Low-frequency alleles are the most likely to be lost. The changes produced by genetic drift accumulate in time and results in a loss of genetic variability within a population. Genetic drift affects a population and reduces its size dramatically due to a disaster or pressure -bottleneck effect- or because of a population split -founder effect-. Founder effect refers to the origin of a new population from only a few individuals that are coming from a bigger-sized population. These founder individuals, which are carrying some of the genes of the original population, might or might not be genetically representative of the original one. Some rare alleles might be exceeded or might be lost by complete. In these situations, genetic variability is reduced, and there exists the possibility of developing a peculiar allelic composition.
The exposed example refers to a founder effect -genetic drift- event.
Some chickens were taken from the original population to another farm.
Bacteria in these chikens could or could not be genetically representative of their original population.
What does it mean?
It means that probably the allele that causes resistance was present in the original population.
Individuals carrying the allele were taken to the new farm where it randomly increased its frequency.
So in the new farm the new population expresses a high frequency of the resistant allele.
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Use the diagram to identify the stream profile that correctly illustrates
settlement deposition
A. Profile 1
B. Profile 3
C. Profile 2
D. Profile 4
what is seedbed preparation?
Answer:
love means love you 19035
Answer:
Seedbed preparation is an important step that can optimize seed germination and survival rate. Final seedbeds can be prepared by disk, harrow, or chisel plowing. The means of preparation will vary with the species selected and the availability of equipment.
Explanation:
what is the part of the respiratory system that is the voicebox?
Answer:
larynx
Explanation:
You have discovered a new species of fungus associated with plant roots. It invades the cells in the roots, forming arbuscular mycorhizzae. Based just upon this character, you confidently determine that this fungus is member of the: You have discovered a new species of fungus associated with plant roots. It invades the cells in the roots, forming arbuscular mycorhizzae. Based just upon this character, you confidently determine that this fungus is member of the:
A. Ascomycota.
B. Basidiomycota.
C. Glomeromycota.
D. Zygomycota.
What are some exceptions to Mendel's principles?
Answer:
Multiple alleles. Mendel studied just two alleles of his pea genes, but real populations often have multiple alleles of a given gene.
Incomplete dominance.
Codominance.
Pleiotropy.
Lethal alleles.
Which one is Prokaryotic? (multiple)
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Answer:
I believe 1 and 4 are prokaryotic.
Explanation:
Over the past 300 years, how did the role of the ocean change with respect to the amount of carbon dioxide in the atmosphere
Answer:
Ocean plays the role of regulator.
Explanation:
The role of the ocean change with respect to the amount of carbon dioxide in the atmosphere because oceans plays a role of regulator and balancer. When there is high amount of carbon dioxide in the atmosphere due to burning of fossil fuels and volcanic eruptions so the ocean absorb that extra amount of carbon dioxide from the atmosphere while on the other hand, when there is decrease in the concentration of carbon dioxide in the atmosphere, the ocean gives its carbondioxide gas to the atmosphere to regulate the concentration.
i need help , i’m doing a quiz and i have 60 mins !
Answer:
power is work divided by time
Explanation:
Which two phrases most likely explain how the rock shown here formed?
D A. Cooling of volcanic lava on Earth's surface
O B. Sedimentation of layers at the bottom of a body of water
O C. Small grains of sand getting pressed together over time
Answer:
The answer is b and c small grains of sand getting pressed together over time and sedimentation of layers at the bottom of a body of water. Just took test got it right.
Biotic factors are the
Answer:
Biotic factor is a living organism that shapes its environment.
Explanation:
In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians, and algae.
Answer:
Biotic factors are the living organism which are present in the environment such as humans , plants , animals and microorganisms.
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Suppose for some reason DNA production suddenly stopped occurring. Explain the consequences that would occur and why homeostasis would not be maintained.
Answer:
a
Explanation:
Answer:
For homeostasis to occur, DNA production is super important. Taking in consideratoin that DNA production suddenly stopped occuring, Homeostasis wouldn't be able to occur because the Nucleus wouldn't be able to produce RNA which is released into the cell cytoplasm.
Why do single-celled organisms divide?
A.to repair damaged cells
B.to transmit genetic material by reproduction
C.to reduce the number of chromosomes in the cell
D.to increase the number of chromosomes in the cell
Answer:
C
Explanation:
Single-celled organisms use cell division as their method of reproduction
Why is secondary consumer a killer?
A. They eat or consume other animals
B. They do photosynthesis and are autotrophs
C. They eat or consume plants
Answer:
a) they eat or consume other animals
In a cohort study a scientist collects health data on a group of nurses. What characteristic was used to form the cohort? A. Behavior, B,- geography, C- occupation, D- age
In a cohort study a scientist collects health data on a group of nurses. characteristic was used to form the cohort occupation.
What are the 3 types of observational study?The 3 types of observational study are:
Case Control Observational Study.Cohort Observational Study. Cross Sectional Observational Study.Thus, In a cohort study a scientist collects health data on a group of nurses. characteristic was used to form the cohort occupation.
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Answer:
occupation
Explain:
the common factor/how they were picked and selected is by their job/ "occupation".
HELP PLEASE!!
Explain what an allele is by using the terms DNA, chromosome, and gene.
THANK YOU
Answer:
DNA is arranged on chromosomes in segments called genes. One gene tells the cell how to make one protein. Different variations of a gene are called alleles. Each parent passes one allele to the child for each gene.
Explanation:
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List two advantages for synthetic fertilizers
Answer:
Cheaper to purchase than organic
Nutrients are concentrated, only small amounts needed
Nutrients are quickly available for plant absorption
Answer:
They're faster acting than organic making them a good choice for aiding plants in severe distress from nutrient deficiencies. These fertilizers, which come as dry, granular pellets or water-soluble products, also provide even, consistent feeding.
what are toes inside of the human body and what do they produce?
Answer:
Each toe consists of three separate bones and two joints, except for the big toe, which has only two bones — distal and proximal phalanges — and one joint, like the thumb in the hand. The phalanges are made up of the distal phalanges at the tip, middle phalanges, and proximal phalanges, closest to the metatarsals.
Explanation:
I dont know if this is answering your question by I tried!
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Directions: Answer the questions below. In order to earn full points students must have original descriptions, labels, and drawings/sketches of their own ideas. Images copied/pasted from our models, online, or searches will not count.
1) Draw/sketch and describe what the structure of DNA is [5pts]
2) Draw/sketch and describe how DNA Replicates. Make sure to label important players involved [5pts]
3) Describe Transcription [3pts]
4) Where does transcription take place in the cell? [2pts]
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Answer:
6
Explanation:
Answer:
B
Explanation:
If the shaded part is the trait then half would only be carriers and would not actually have the trait. It would need to be fully shaded. So only 4.
The student wants to make a model to provide information about cellular respiration. Drag and drop the
responses below to complete the model.
carbon dioxide and water
chemical bonds
energy released
glucose and oxygen
mitochondria
Answer:
where? mitochondria
inputs. carbon dioxide and water
outputs. glucose and oxygen
energy resources. chemical bonds
energy result. energy released
im not sure but hope this helps :)))
A man has 6 fingers on each hand and 6 toes on each foot. His wife and their daughter have the typical number of digits. Knowing that extra digits is a dominate trait, what fraction of this couple's children would be expected to have extra digits?
Answer:
2/4 = 1/2 = 50% of the offspring is expected to have polydactyl
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Which of the following are uses for the Earth's natural resources? *
Transportation
Food and drink
Homes and buildings
All of the above
Answer:
food and drink
Explanation:
i think
do you think applying any amount of force to any solid object would cause it to bend? why or why not
Answer:
An applied force affects the motion of an object. An applied force can be a push, pull, or dragging on an object. The action from a force can cause an object to move or speed up , to slow down , to stop, or to change direction
if the pressure of a sample of gas is doubles at constant temperature, what happens to the volume of the gas?
Answer:
If the pressure doubles, the volume decreases in half.
Explanation:
The relationship between the pressure and the volume of a gas can be explained by Boyle's Law. According to this law, the volume and pressure of the gas has an inversely proprietary relationship. In that case, if the pressure on the volume decreases in the same intensity and if the pressure decreases, the volume increases in the same proportion. In that case, if the pressure of a gas sample doubles, the volume decreases by half.
The ovaries release the female gamete each month.
True
False