Different DNA sequences among members of a population are known as genetic variation.
Types Both somatic (all other) cells and germ cells, such as sperm and eggs, can vary.Gene flow, or the transfer of genes from one group to another, DNA mutation, and sexual reproduction are the main causes of genetic variation.Differences in the genomes of individuals belonging to the same species are referred to as genetic variation. The genetic code is stored in units called genes. Genetic recombination, population-wide gene flow, and mutation are the three main causes of genetic variation.Eye color, blood type, animal and plant camouflage, and leaf modification are a few examples of genetic variety.For more information on genetic variation kindly visit to
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Our mountain regions are unique and beautiful places. We must preserve them for future generations. One of the most serious threats to our mountains is ridgetop development. Large housing developments built on steep slopes and along mountain ridges are unsightly. Also, they adversely affect the scenic views that draw tourists to our region each year. Who wants to drive to the mountains to see not the lovely tree-covered outline of the gently sloping mountain ridges against the sky, but rows of houses jutting from the ridges and slopes with little or no tree cover between them? With tourism as the biggest industry in our area, maintaining our scenic ridgelines is crucial to continued economic success here.
Ridgetop development not only detracts from scenic mountain views and threatens our area’s top industry, it also harms the environment. Stripping large areas to create multiple building sites removes the trees and other plants. These resources provide natural erosion barriers on steep slopes. Large housing developments on ridges often increase erosion and runoff into streams and rivers.
What type of essay is this, primarily?
This is a persuasive essay primarily focused on highlighting the negative impact of ridgetop development on mountain regions.
The essay provided presents a clear argument and aims to persuade the reader about the importance of preserving mountain regions by discouraging ridgetop development. The writer expresses their opinion on the issue and supports it with reasons and evidence.
The essay falls under the category of a persuasive essay, as its main objective is to convince the audience to take action or support a specific viewpoint. The author emphasizes the unique beauty of mountain regions and the need to preserve them for future generations. They argue against ridgetop development by highlighting the negative consequences it has on scenic views and the tourism industry.Additionally, the detrimental environmental impact of stripping large areas and increasing erosion is discussed.Overall, the essay combines persuasive techniques, such as presenting arguments, providing evidence, and appealing to the reader's emotions, to advocate for the preservation of mountain regions and discourage ridgetop development.
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which of the following pairs a land cover wioth its most appropriate use
Rangeland → Pastureland pairs a land cover with its most appropriate use.
What is a Rangeland?This is the type of land which is dominated by grasses and shrubs eaten and used as grazing sites by animals etc.
Pastureland also has the same characteristics and uses which is why the pair is the most appropriate choice.
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discribe what happends to the chromosomes in the anafase and the telophase
Answer:
During anaphase- each pair of chromosomes separates into 2 identical chromosomes
During telophase- the chromosomes move to the opposite ends of the cell and 2 nuclei are formed
How are photosynthesis and cellular respiration related?
OA. Photosynthesis releases energy, while cellular respiration stores
energy.
B. Cellular respiration breaks down glucose, while photosynthesis
produces glucose.
OC. Cellular respiration is the process animals use to produce glucose,
while photosynthesis is the process plants use to produce
glucose.
D. Photosynthesis produces water molecules, while cellular
respiration splits water molecules apart.
Answer:
B. Cellular respiration breaks down glucose, while photosynthesis produces glucose.
Photosynthesis and cellular respiration are complementary processes that are interconnected and interdependent in the living world. Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose and oxygen. This process occurs in the chloroplasts of plant cells.
Explanation:
Which can be excluded from the list of events caused by the flow of thermal energy inside the Earth?(1 point)volcanic eruptionsthunderstormsearthquakesvalley formations
Let's explore how each of the options is formed.
Volcanic eruptions: It is when a volcano explodes due to magma build-up in the magma chamber. Lava, pyroclastic materials, and magma flow out of the volcano. It is related to the thermal energy inside the Earth because the heat is released to the surface of the Earth.
Thunderstorms: It is formed when three components: unstable weather conditions, uprising cold air, and enough moisture are present in the area. Based on the criteria for thunderstorms to form, it is not related to the flow of thermal energy inside the Earth.
Earthquakes: It is a phenomenon when two tectonic plates collide, slide, or crush one another, or when a volcano is about to erupt. It is a sudden and violent shaking of the ground. It is related to the flow of thermal energy inside the Earth since the pressure and temperature of the collision of the tectonic plates result in the formation of geothermal energy.
Valley Formation: A valley is a land formation wherein a low area is found between two hills or mountains. It is formed by erosion and gradual weathering of land by the wind and water. In the case of Hawaii volcanoes, its valleys were formed on the weathering of the slopes between the volcanoes. It is related to the flow of thermal energy inside the Earth.
ANSWER: Thunderstorms.
Answer: Thunderstorm
Explanation:
With your group members discuss and answer the following questions.
1. What does only 1 circle around the seismic station tell you about the epicenter?
2. How does having information from 2 seismic stations help determine where the epicenter of the EQ is?
3. Why does having information from 3 seismic stations help determine the location of the epicenter?
4. What data is provided for you by a seismogram?
5. Why does the S and P interval (time difference) increase the further away you get from an EQ's epicenter?
6. According to the seismogram, which body wave produced the most amount of ground shaking? Support your answer.
1) One seismogram represents the distance to the epicenter (indicated by one circle). This is determined by the arrival times of the P and S waves. When the seismograph is near to a quake, the S-waves arrive shortly after the P-waves.
2) A single or double recording station could only measure distance, not direction; a full circle is drawn around the station to allow for all possibilities.
3) Triangulation is a technique used by scientists to determine the location of an earthquake's epicenter. When seismic data is collected from at least three different locations, the epicenter may be established by where the data links. A network of seismographs positioned in various directions records every earthquake.
4) A seismograph is a device used to record seismic waves caused by an earthquake, explosion, or another Earth-shaking event.
5) In the aftermath of an earthquake, the P waves go ahead of the S waves. As a result, the longer the time difference between the arrival of the P and S waves, the greater the distance between a seismic recording station and the earthquake epicenter.
6) Surface waves frequently induce more ground motion than body waves and hence cause more harm.
What exactly is a seismograph?Seismometers are measuring instruments that detect ground noises and vibrations caused by earthquakes, volcanic eruptions, and explosions. Seismographs usually consist of a seismograph, a timing device, and a recording device.
Modern seismometers are capable of detecting ground movements as small as a few nanometres - a millionth of a millimeter. The magnitude of the earthquake is calculated using the measured amplitudes and its closeness to the hypocenter.
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9. A cell has a volume of 64 units and total surface area of
96 units. What is the cell's surface area to volume ratio?
a 1.5
b 2.8
с 3.4
d 4.7
Which of the following is not used by scientists to obtain information?
Scientists obtain information from multiple sources, and as science tries to be as objective as possible, is important to use reliable sources.
Scientific journals are one of the main means where the scientists share their discoverings, so they are a reliable source, as well as books, another media where the information is collected.
Opinions are not a reliable source of information, as they are subjective and reflect the belief of the person giving the opinion, and are NEVER used by scientists to obtain information.
The Internet can be a great source of information, but this depends on the reliability of each website, as there are many useful resources for scientists available online, but also websites that don't have a reliable source to back up the information they are displaying.
Coral bleaching is caused by
- warmer waters
- decrease in food
- ocean acidification
- cold temperatures
Answer:
warmer waters
Explanation:
The leading cause of coral bleaching is climate change. A warming planet means a warming ocean, and a change in water temperature—as little as 2 degrees Fahrenheit—can cause coral to drive out algae. Coral may bleach for other reasons, like extremely low tides, pollution, or too much sunlight.
The process of choosing a specific organism to breed based on producing desired traits is called...,
Selective breeding
Natural selection
Natural breeding
Selective evolution
Answer:
selective breeding
Explanation:
It makes the most sense, let me know if i'm wrong.
Fey measures wind speed every 15 minutes for one hour in her backyard her data is recorded below. as fey takes her last measurement she notices that the temperature drop suddenly which of the following weather predictions would be best for fey to make
Answer:
he if i may ask what i your question exactly?
you'd use the equation that establishes a relationship between energy and wavelength, which looks like this
e=h⋅cλ, where
λ - the wavelength of the photon; c - the speed of light, usually given as 3⋅108m/s; h - planck's constant, equal to 6.626⋅10−34j s
plug the value you were given for the energy of the photon in the above equation to get the wavelength
e=h⋅cλ⇒λ=h⋅ce
λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m
The genes are more on the side of.. b natureAnswervery high orbital velocities in a very compact region;
Explanation:
The picture below shows Enchanted Rock, a pink granite rock formation located in the Llano Uplift ecoregion. This land is most likely changing due to —
A. depressions under the uplift make it sink slightly and crack into pieces.
B. the process of nitrogen fixation, as bacteria release and build up minerals in the granite.
C. the process of exfoliation, a type of erosion that causes slabs of granite to break away.
D. regular earthquakes that shake and break up the granite as they shake the earth.
Answer: C. The land is in all probability changing because of the course of shedding, a sort of disintegration that makes chunks of stone split away.
What is shedding process in soil?Rocks can expand or crack as a result of rapid temperature changes. This particularly occurs with granitic rocks as they were cooling, as at Yosemite Public Park. Freeze-thaw: Water expands when it freezes. Before winter, moisture that seeps into cracks may freeze, breaking the rocks apart.
What is the course of shedding disintegration?The process of large, flat or curved sheets of rock breaking away from the outcrop as a result of pressure release is known as exfoliation. Cracks and fractures along the sheet are the result of erosion removing the overburden from a rock that was formed at high pressure deep in the Earth's crust.
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HELPPPPP!!!!!A scientist found a correlation between the oxygen level in
a pond and the water temperature. As the water
temperature increased, the oxygen level decreased.
To find out whether the change in the water temperature caused the oxygen
level to change, what could the scientist do?
A. Perform a controlled experiment by increasing and decreasing
water temperature and measuring changes in oxygen levels.
OB. Add more oxygen to the water and take measurements to
determine whether the temperature changes.
OC. Compare oxygen levels with carbon dioxide levels in water at
various temperatures.
OD. Measure water temperature at various depths in the pond to find
out whether it changes.
In controlled experiments the researcher controls the variables involved in the experiment to only observe the interaction between the independent and the dependent ones. Option A) Perform a controlled experiment by increasing and decreasing water temperature and measuring changes in oxygen levels.
What is a controlled experiment?The controlled experiment is the one in which the researcher controls all the variables to only observe the interaction between the ones of interest.
In these experiments, the researcher changes voluntarily the state or values of the independent variable to analyze how these changes affect or influence the response of the dependent variable.
All the other variables in the experiment remain constant so they do not affect the results.
In the exposed example, the reseacher wants to know is the change in the water temperature caused the oxygen level to change.
Independent variable: TemperatureDependent variable: Oxigen levelThe scientist can voluntarily change temperature and see how oxigen responds to these changes. This is a controlled experiment.
Option A) Perform a controlled experiment by increasing and decreasing water temperature and measuring changes in oxygen levels.
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how is the prairie ecosystem similar to the native plant ecosystem?
Answer: Prairies are ecosystems considered part of the temperate grasslands, savannas, and shrublands biome by ecologists, based on similar temperate climates, moderate rainfall, and a composition of grasses, herbs, and shrubs, rather than trees,
Native plants are plants indigenous to a given area in geologic time. This includes plants that have developed, occur naturally, or existed for many years
so in conclusion there is a large difference between them
Which statement best describes the difference between photosynthesis and
cellular respiration?
A. Both processes have the same function in the carbon cycle.
B. The materials needed for one process are produced by the other
process.
C. Cellular respiration supplies engergy to cells, but photosynthesis
does not
O D. Photosynthesis occurs in plant cells, but cellular respiration does
not.
Answer:
B.
Explanation:
:)
Which pair of individuals represents a mating that will result in inbreeding?
O individuals 1 and 6
individuals 3 and 4
O individuals 3 and 6
O individuals 6 and 14
Mark this and return
Save and Exit
5. A student examines the winged insect shown below. Order Go 103 Mantodea Raphidioptera Coleoptera Dichotomous Key Sep Characteristics Insect has an extremely long prothorax (neck) Insect has a short or no prothorax Forelegs come together in a "praying" position Forelegs do not come together in a "praying" position Wings are armor-like with mermbranous hind Wings undereath Wings are not armor-like Wings are triangular in shape Wings are not triangular in shape and head is elongated Insed lacks a proboscis (long, slender snout) and has long filaments at abdominal up Insect has a proboscis and lacks long filaments at abdominal tip Go to 4 Go te 5 Mecoptera Ephemeroptera Lepidoptera Based on the dichotomous key, in what order should this insect be classified? A. Mantodea B. Raphidioptera C. Coleoptera D. Lepidoptera
Answer:
I’m not sure if it’s correct but I thinks it’s A
Explanation:
Looked it up online
Answer:
Its C - Coleoptera
Explanation:
The tubes transporting minerals and water upward are called A epidermis B phloem C cortex D xylem
Answer:
D.
Explanation:
what are four eukaryotic kingdoms
Answer:
Animalia, Plantae, Fungi and Protista
Explanation:
Animalia- animals
Plantae- plants
Fungi
Protista- amoebas, diatoms, dinoflagellates ect.
Hope this helps!
Choose the answer that best completes the sentence below.
Jobs of the president, senators, and representatives are all important jobs
Americans vote for the people who will represent them.
A. before
B. but
C. even though
D. so
Pls is for todays
Answer: D
the answer is D because it would fit best with this sentence
what bacteria is this?
Answer:
I'm not sure but I am pretty sure that it is: streptococcus.
Hope this helps!
Part C
AP wave is a type of seismic wave called a longitudinal wave, or pressure wave. Longitudinal waves occur when the
material that carries the wave is compressed and stretched. Aside from seismic waves, what is an example of a
longitudinal wave that you have observed?
Answer:
Sound wave is an another example of longitudinal wave. Sound wave is a vibration that is transmitted through a medium, such as air, water, and metals. Ultrasonic wave is defined as “inaudible sound with high frequency for human” the frequency of which generally exceeds 20 kHz. These days, sound wave which is not intended to be heard is also called ultrasonic wave.
Answer: A wave traveling through a compressed spring or a sound wave traveling through the air are examples of longitudinal waves.
Explanation: Simple answer from Edmentum
In your lab you are studying the genome of venomous rattlesnakes to find the gene which codes for their venom glands. One rattlesnake has a mutation and cannot produce venom. You compare his DNA to a normal rattlesnake. What type of mutation has occurred?
Normal: AATCGCTACGCACGTCAG
Mutated: AATCGCCATGCACGTCAG
A. Inversion
B. Insertion
C. Point mutation
D. Deletion
The type of mutation that occurred here is an inversion of three nucleotide bases (Option A).
What is an inversion?An inversion is a type of mutation where linear order of nucleotide in the mutated sequence is inverted.
In this case, we have an inversion that involves the following bases (bold highlighted) AATCGC TAC GCACGTCAG and AATCGC CAT GCACGTCAG.
In conclusion, this mutation is an inversion of the genomic sequence (Option A).
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Which of the following are a part of the circulatory system? I. Blood II. Lungs III. Heart IV. Blood Vessels A. I, II, III, and IV B. II, III, and IV C. I, III, and IV D. I and IV
Option A is correct as I, II, III, and IV are all a part of the circulatory
system.
The circulatory system, also known as the cardiovascular system, is a complex network of organs and vessels responsible for transporting blood, oxygen, nutrients, hormones, and other necessary substances to different parts of the body. It also plays an important role in the removal of metabolic waste and carbon dioxide from the body.
I. Blood is a vital component of the circulatory system that flows through the blood vessels and carries oxygen, nutrients, hormones, and other substances to different parts of the body.
II. Lungs are also a part of the circulatory system as they help to oxygenate the blood by allowing oxygen from the air to enter the bloodstream and carbon dioxide to be eliminated from it.
III. Heart is a muscular organ that pumps blood to the entire body. It is the center of the circulatory system and also responsible for regulating blood pressure.
IV. Blood Vessels include arteries, veins, and capillaries. Arteries carry oxygen-rich blood from the heart to the body and veins return oxygen-poor blood to the heart. Capillaries are small, thin-walled vessels where the exchange of oxygen, nutrients, and other substances takes place between the blood and the tissues.(option-a)
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what organs does muscular disorder affects?
Muscular disorders can affect the skeletal muscles, which are the muscles that allow us to move our body, as well as the smooth muscles and cardiac muscles.
Myopathies, or muscular disorders, can have an impact on a number of the body's organs and systems. Since these disorders have an effect on the composition, structure, or metabolism of muscle tissue, they have the greatest direct effect on the muscular system.
This may result in symptoms such as muscle atrophy, cramps, stiffness, and weakness. However, because the heart, lungs, and digestive system depend on healthy muscle function to do their jobs well, the effects of muscular disorders can also spread to those organs.
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FILL IN THE BLANK with the exception of the gnetophytes, the living gymnosperm groups have only _____ as water-conducting and support cells in the xylem. please choose the correct answer from the following choices, and then select the submit answer button. answer choices
With the exception of the gnetophytes, the living gymnosperm groups have only tracheids and vessels as water-conducting and support cells in the xylem.
what is gnetophytes?This refers to gymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class (Gnetopsida) and in others as a subdivision (Gnetophytina or Gnetophyta).
Tracheids serve for support and for upward conduction of water and dissolved minerals in all vascular plants and are the only such elements in conifers and ferns.
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2 Points
A liquid changes to a gas during evaporation. Which process is the reverse of
evaporation?
O A. Condensation
B. Infiltration
C. Percolation
O D. Precipitation
it’s condensation because from a gas to a liquid the matter condenses
11. What is the primary cause of eutrophication in aquatic ecosystems (2 points)
O nutrient-rich runoff
O increased biodiversity
high oxgyen levels
loss of algae in that food web
Submit answer Skip for now
End qu
the primary cause of eutrophication is the input of nutrient-rich runoff into aquatic ecosystems, which fuels the excessive growth of algae and ultimately leads to oxygen depletion and other negative impacts on the ecosystem which is the first option.
Eutrophication is primarily caused by the influx of nutrient-rich runoff into aquatic ecosystems. This occurs when excessive amounts of nutrients, such as nitrogen and phosphorus, enter the water. The main sources of these nutrients are often human activities, including agriculture, urban development, and wastewater treatment. When these nutrients enter the water, they act as fertilizers, fueling the growth of algae and other aquatic plants.
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If you’re going hiking this weekend and you have the option of hiking a mountain (A) that is 1400 meters in height and a mountain (B) that is 650 meters in height, BUT you know that you have limited time because of other plans – which mountain would you choose to hike? Why?
Answer:
I would choose mountain B cause it's only 650 meters short from mountain A (1400 meters )
Explanation:
short the length less the time we take to cover .
so we will complete our hiking soon. we will get time to do other things .. so it will be best to hike on mountain B
9. Stem cell therapies are not new. Doctors have been performing bone marrow stem cell transplants for decades. But when scientists learned how to remove stem cells from human embryos in 1998, both excitement and controversy ensued.The excitement was due to the huge potential these cells have in curing human disease. The controversy centered on the moral implications of destroying human embryos. Political leaders began to debate over how to regulate and fund research involving human embryonic stem (hES) cells.Newer breakthroughs may bring this debate to an end. In 2006 scientists learned how to stimulate a patient's own adult cells to behave like embryonic stem cells. These cells are reducing the need for human embryos in research and opening up exciting new possibilities for stem cell therapies.Which of the following statements would best support the claim that stem cell research should have been avoided prior to 2006?Doctors were using adult stem cells to help cure human disease.Doctors were removing stem cells from human bone marrow and using them to cure human disease.Doctors were destroying adult stem cells to help cure human disease.Doctors were destroying human embryos to help cure human disease.
The statement that would best support the claim that stem cell research should have been avoided prior to 2006 is "Doctors were destroying human embryos to help cure human disease."