**will give brainliest**
Which correctly lists the three elements that geologists measure to determine the age of an organism’s remains?
A. argon, nitrogen, and carbon-12
B. carbon-14, nitrogen, and carbon-12
C. nitrogen, potassium, and carbon-14
D. carbon-12, potassium, and argon
Answers
Answer:
It’s Carbon -12,potassium, and argon.
Explanation:
The three elements used by geologist to measure the age of organism’s are carbon-12, potassium, and argon. Thus, option D is correct.
Which method is used to determine of age of organism’s remains?The age of organism’s remains is determined by two methods of calculation such as carbon dating and by radioactive calculations as all living things are made up of carbon. It calculates the age by estimating at what time the fossil was alive.
Now a days, instead of the decay of carbon-14 and nitrogen-14, radioactive isotopes are used for determining the age of organism’s remains, known as Radiocarbon dating.
The radioactive isotopes of different elements present in our environment. The older elements are uranium, argon etc are used to measure age of a fossil.
The use of older naturally available radioactive elements is more successful in determination of age of organism’s remains. Hence, option D is correct.
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Related Questions
What best describes ribosomes?
Answers
Ribosomes are cellular structures that synthesize proteins from amino acids. They are composed of ribosomal RNA and proteins and are found in both prokaryotic and eukaryotic cells.
Ribosomes are essential for gene expression and cell growth. They can be free in the cytoplasm or bound to the endoplasmic reticulum or the nuclear envelope.
An example of a ribosome function is the translation of a messenger RNA (mRNA) sequence into a polypeptide chain. The ribosome reads the mRNA codons and matchesthem with the corresponding transfer RNA (tRNA) anticodons that carry the amino acids. The ribosome then forms a peptide bond between the amino acids and releases the tRNA. This process continues until the ribosome reaches a stop codon on the mRNA and terminates the protein synthesis.
Answer:
A ribosome is a intercellular structure made of RNA and protein
Explanation:
Why it was important that Gregor Mendel used thousands of pea plants in his experiments? Would Mendel have found the same results if he had used only twenty plants? Explain.
Answers
Answer:
Explanation:
Gregor Mendel used thousands of pea plants in his experiments to ensure that his results were accurate and reliable. By using a large sample size, he was able to reduce the effects of chance and random variation in his experiments. This is important because biological systems are complex and variable, and small sample sizes can lead to inaccurate or misleading results.
Mendel's experiments involved crossing pea plants with different traits (e.g., tall vs. short, yellow vs. green), and he counted the number of offspring with each trait. He found that the offspring followed predictable patterns of inheritance, which he summarized in his laws of inheritance.
If Mendel had used only twenty plants in his experiments, he may not have obtained the same results. With a small sample size, chance events can have a greater impact on the results. For example, if he crossed two pea plants with different traits and obtained only a few offspring, it's possible that chance events (such as mutations or environmental factors) could have influenced the results. This could lead to false conclusions about the inheritance of the traits.
Therefore, using a large sample size was critical to Mendel's success in developing his laws of inheritance. It allowed him to detect patterns that were consistent across many different crosses, and to demonstrate that these patterns were not the result of chance variation.
ASAP!! PLEASE DUE IN 10 MINUTES
The Asian longhorned beetle is native to China and Korea. The beetle is thought to have entered the United States by means of untreated wooden packing crates. The beetle larvae make tunnels and feed on wood of a wide variety of trees like maple, elm, willow, and birch. Infestation by a large number of these beetles can result in the death of the trees.
Which is the best measure that the United States government can take to limit the introduction of more beetles?
Responses:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Prevent growing trees in and around shipyards.
Introduce predators of these beetles from China or Korea.
Require an inspection and treatment of all wooden packing materials before being imported.
Cut all trees that are infected or are at risk of being infested by the beetles.
Answers
My first answer would be to inspect all wooden packaging materials before being shipped, since that seems to be the way they are being transported from China and Korea to the United States.
My second answer would be to release predatory species concerning this native beetle species to evacuate or kill of the beetle community in the United States. Although, that could create more problems with more non-native species (of the United States), reasoning the first answer to be the best.
The other answers would most likely be worse, since the extermination of possibly infected trees would just kill the trees, which is something we are trying to stop from happening. If we prevent those trees from growing in/around shipyards, the species could still travel through the packaging if it is brought further onto land or use other modes of transportation. Also, the trees were already growing there in the first place, so then 'preventing' them from growing would just lead back to killing the trees that could be infested.
Answer:
Explanation:
Prevent growing trees in and around shipyards.
A city is concerned about global warming and smog. It wants to reduce the impact of its use of fossil fuels. Explain how the city could use technology to reduce fossil-fuel use by changing (a) its transportation, (b) its buildings, and (c) services for city residents.
Answers
Answer:
I think its a
Explanation:
cars and stuff use fossil fuels, therefore changing transportation may reduce its fossil fuel usage.
1. What kinds of pollution do you know? Which is the worst? Discuss in group.
2. What are fossil fuels? Give examples. Where are they used? Can they be replaced?
3. Some factories dump waste water in rivers and ocean. How can we prevent this?
4. People throw away tons of garbage everyday. How can we reduce the amount of garbage?
5. Do you drink bottled water? Why or why not? What is its effect on the environment?
pls 3-5 sentence and then explain briefly the answer. ty
Answers
Answer:
1. There's air pollution, water pollution, noise pollution, and light pollution. The worst pollution is air pollution because it can cause severe health problems like respiratory diseases or even cancer.
2. Fossil fuels are resources that are formed from the remains of dead plants and animals. An example would be coal, oil, and natural gas. These fuels are used to generate electricity, power vehicles, heat homes and buildings. Yes, there many other energy sources that can replace fossil fuels.
3. One way to prevent factories from dumping waste water in rivers and oceans is to implement stricter regulations and penalties for those who violate them.
4. One of the best ways to reduce the amount of garbage is to reduce, reuse, and recycle.
5. Yes, I drink bottled water because it's more water to drink from a bottle and its effect on the environment is recycling and being reused.
1. Pollution can be of many types such as air pollution, water pollution, noise pollution, and land pollution. In my opinion, air pollution is the worst because it affects people's health and can cause breathing problems, heart diseases, and even cancer. Discussing this issue in a group can help us understand different perspectives and find solutions to reduce pollution.
2. Fossil fuels are non-renewable sources of energy that are formed from the remains of dead plants and animals. Examples of fossil fuels include coal, oil, and natural gas. They are used to generate electricity, fuel vehicles, and heat homes. However, they are a major contributor to air pollution and climate change. Fossil fuels can be replaced by renewable sources of energy such as solar, wind, and hydro power.
3. Factories dumping waste water in rivers and oceans can have a negative impact on aquatic life and the environment. To prevent this, factories can treat their waste water before discharging it into the environment. Governments can also enforce strict regulations and penalties for factories that violate environmental laws.
4. To reduce the amount of garbage, we can follow the three R's - reduce, reuse, and recycle. We can reduce the amount of waste we generate by using reusable bags, bottles, and containers. We can also compost organic waste such as food scraps and yard waste. Recycling can also help reduce the amount of garbage by turning waste into new products.
5. I try to avoid drinking bottled water because it generates a lot of plastic waste that can take hundreds of years to decompose. Plastic waste can also harm wildlife and pollute the oceans. Instead, I use a refillable water bottle and fill it with tap water. Tap water is safe to drink in most developed countries and can be a more sustainable choice.
Why do you think Vera and Domingo ended up with three substances after the chemical reaction while Lee only ended up with two
Answers
Answer:
:)
Explanation:
They were probably had something in it that added more. Also they dint say how much so one person added it evenly while the other 2 probably added more of one substance than the other.
50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answers
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
Which of the following is an extensive property?
A. Boiling point
B. Magnetism
C. Melting point
D. Volume
Answers
Answer:
I believe the answer is D
What is the name given to the theory that explains how a substrate fits the active site of an enzyme?
Answers
Which statement about models in science is true?
A:Models change to accommodate new discoveries.
B:Models are only used by engineers.
C:Models never change.
D:Models are only used by scientists.
Answers
Models change to accommodate new discoveries. This statement is true. Therefore option A is correct.
Models change to accommodate new discoveries is true because models in science are representations of natural phenomena or systems used to understand and predict real-world behavior.
As scientific knowledge advances and new discoveries are made, models are updated and refined to incorporate the latest information.
Scientists use models to test hypotheses, make predictions, and gain insights into complex processes. Similarly, engineers also use models to design and optimize various systems.
Therefore option A is correct.
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How can the Swartz process be modified to work for bacteria?
Science
7th
Answers
What does a 20x magnification mean?
I can zoom in 20 times on an object
An object is magnified 20 times larger than normal
A magnifying lens is used 20 times on an object
Answers
Answer: B. An object is magnified 20 times larger than normal
Explanation:
C. is wrong because you are not just magnifying something 20 different times,
A. is wrong because it does not give a starting point for the magnification
b. is correct because it gives a starting and endpoint for the magnification.
Please help me with this
Spam+=report
Answers
The phenotype of the second question is (bb)
List 3 negative impacts does plastic pollution have on the ocean?
Answers
Ingestion
And suffocation
Answer:
Negative physical impact on marine life, chemical impact on the water, and transport of native species.
Explanation:
Negative physical impact on marine life:
Plastic can be dangerous to creatures living in the ocean. Marine animals can fatally swallow plastic, become entangled in it, and even become physically impaired for the rest of their life.
Chemical impact on the water:
Plastics carry chemicals such as PCBs and DDT that can invade the water and cause harm to marine ecosystems.
Transport of native species:
Plastic can carry organisms from one part of the ocean to a relatively remote area. By introducing new organisms to an ecosystem, the flow can be disrupted and result in major consequences.
Giving 25 points
Regarding to the hierarchical organization, the human body is composed of cells, organs, tissues, organ systems and organisms. Which one is the most abundant?
( Science )
Answers
The organism level is the highest level of organization. An organism is a living being that has a cellular structure and that can independently perform all physiologic functions necessary for life. Hope this helps!
The organism level is the highest level of organization. An organism is a living being that has a cellular structure and that can independently perform all physiologic functions necessary for life.
What is Hierarchical organization?
Larger corporations and organizations frequently have hierarchical organizational structures. It depends on the organization's management levels being at various degrees of authority, connected via a chain of command.
In most cases, formal decision-making occurs from the top down. This results in a towering organizational structure with distinct lines of authority and accountability for each level of management. The structure gets taller and has more levels as the organization expands.
The number of managers at each level of an organization frequently gives it a pyramidal appearance. As you descend, the structure becomes wider; typically, senior management is at the top, followed by middle management, then employees.
Therefore, The organism level is the highest level of organization. An organism is a living being that has a cellular structure and that can independently perform all physiologic functions necessary for life.
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Help with True or False Cell Facts:
______ 1. All living organisms are made of cells.
______ 2. Most organisms have specialized cells that perform different functions.
______ 3. Most organisms have many types of cells.
______ 4. Most cells are easy to observe.
______ 5. Cells come in various shapes and sizes depending upon their function.
______ 6. Some organisms consist of a single cell.
______ 7. All organisms have organs and/or body systems.
______ 8. Cells combine to form organ systems, organ systems combine to form tissue, and tissues combine to form organs.
Answers
Answer:
1) true
2)false
3)true
4)false
5)true
6)true
7)true
8)true
Explanation:
I am not sure about this.
Answer:
1) true
2)false
3)true
4)false
5)true
6)true
7)true
8)true
Explanation:
i not sure if it is correct but this is what i got
all you need to know is in pic below
Answers
Please Help me (I'll give brainlest) (LIMITED)
Answers
Answer: C
Explanation:
All the other answers wouldn't make sense. First, we cross out the ones that are obviously wrong, such as A and D. Now there's only B and C. I'm not sure If water would evaporate, but I do know that not all plant life would die off. So it leaves us with C.
How does chemical composition affect the characteristics of granitic rocks?
A. Silicon cause granitic rocks to be very dense.
B. Silicon cause granitic rocks to have a dark color.
C. Silicon cause granitic rocks to be lighter in color.
D. Silicon cause granitic rocks to be porous.
Answers
Based on these images, what can you say about the tentacles of an octopus and the limbs of a lizard?
Answers
Answer: 4
Explanation:
EXPERT HELP I'LL GIVE BRAINLIEST: Which statement describes two organ systems working together to make an animal run away from danger?
A. The endocrine system releases hormones that cause bones in the
arms and legs to grow longer.
B. The immune system produces antibodies when white blood cells
detect pathogens.
C. The nervous system sends signals that cause the adrenal glands
to release hormones.
D. The heart beats faster when the nervous system senses a high
Level of carbon dioxide in the blood.
Answers
Answer:
C
Explanation:
I already took the quiz hope this helps
Can anyone find this bug and tell me what it is please thanks.
Answers
Help I don't get it?
Which is the smallest and which is the largest?
Answers
Answer:
Chromosome, DNA, gene, nucleus, cell
Explanation:
:p
Answer:
C
Explanation:
Required The measure of the average thermal energy of a substance is * O heat O matter O temperature
Answers
Answer: Temperature
Explanation:
I am unsure what the question posed in this is, but I believe it is "The measure of the average thermal energy of a substance is: _____." So in that case, it would be temperature.
Answer:
Temperature
Explanation:
PLEASE HELP 6TH GRADE SCIENCE
How can you describe the sequence of the water cycle? Can you predict the outcome if one step were removed from the cycle?
Describe the greenhouse effect. Can you predict how life on Earth might be impacted if the greenhouse effect were not stable?
What creates a weather front?
Answers
Answer:
There are four main stages in the water cycle. Evaporation water can go to the clouds from about anywhere that has water ,
condensation the vapor in the cloud turns back to a liquid ,
Precipitation rain ,
and collection water that falls from the clouds as rain, snow, hail or sleet, collects in the oceans, rivers, lakes, streams. Most will infiltrate (soak into) the ground and will collect as underground water.
If a step was removed from the cycle then it there would be no water coming down. Let’s say if Precipitation was removed then what would happen. The water would be stuck up into the clouds .
The ice would be melting like it is right know and the polar bear would be going extinct because like off of a show polar bears can’t swim far and for let’s say that someplace would change like the desert would not be so hot.
A weather front is a transition zone between two different air masses at the Earth's surface. Each air mass has unique temperature and humidity characteristics. I think.
Answer:
The carbon cycle keeps greenhouse gases in balance, unless something upsets it.
Explanation:
Scientists describe the carbon cycle in terms of sources (parts of the cycle that add carbon to the ... These include water vapor, methane, nitrous oxide, and ozone. ... If we continue on our current path, we will cause even more warming.
What was the first planet discovered obiting a star?
Answers
Answer: 51 Pegas b
Explanation:
Answer:
51 Pegasi b: 1st planet found orbiting a sunlike star
Explanation:
Astronomers officially designated the new planet as 51 Pegasi b, in accordance with the nomenclature already decided upon for extrasolar planets. The b means that this planet was the first discovered orbiting its parent star.
You are looking out over the ocean and see this:
What can you know about the tide?
Answers
When we are looking out over the ocean and see this: We can know about the tide that it must be neap tides. Thus, the correct option is A.
What are neap tides?A neap tide occurs seven days after a spring tide. It refers to a period of moderate tides when the sun and the moon are at right angles to each other in space. A spring tide is a common historical term which has nothing to do with that of the season of spring.
A tide just after the first or third quarters of the Moon when there is least difference between the high and low tides is called as Neap tide. During this time, the Moon and the Sun are at right angles to that of the earth. As a result of this, the high tides are not too high, and the low tides are not too low.
Therefore, the correct option is A.
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At which plate boundary do earthquakes occur most often?
A. Divergent
B. Transform
C. Convergent
Answers
Answer:
C
Explanation:
About 80% of earthquakes occur where plates are pushed together, called convergent boundaries.
Given the corn field snapshot and the incomplete table below, what could the missing values be?
Answers
Answer: B becuase if there were that many caterpillars there would be little survieing plants left.
Which particle grouping can slow the speed of electrons in an atom?
a lower number of neutrons in relation to protons
a higher number of neutrons in relation to protons
a higher number of protons in relation to electrons
a lower number of protons in relation to electrons
Answers
Explanation:
The answer is B.a higher number of neutrons in relation to protons. sorry if im wrong