during which time frames was there the greatest rate of change in atmospheric C02 concentration

Answers

Answer 1

Answer:

7000 PPM

Explanation:

7000 PPM i'm pretty sure


Related Questions

Complete the sentence.

Decomposers ________. means

Answers

Answer:

Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.

Explanation:

Come up with a summery of what physical science is I’ll give brainliest

Answers

Physical science is the study of the inorganic world and materials. It is the study of things that are not alive, abiotic. There are 4 main branches of physical science. Astronomy, physics, Earth sciences, and chemistry are the 4 branches.

Match the statements on the left to the choices on the right.
Increase transcription of a gene. [ Choose ]
DNA binding protein [ Choose ]
Block the promoter region of a gene. [ Choose ]
Found associated with the gene encoding HCl production in a skin cell. [ Choose ]
Found associated with the genes encoding hemoglobin in a red blood cell [ Choose ]

Answers

Answer:

Increase transcription of a gene - Activator

DNA binding protein - Ribosome

Block the promoter region of a gene - Repressor

Found associated with the gene encoding HCI production in a skin cell - mRNA

Found associated with the genes encoding hemoglobin in a red blood cell - mRNA

Explanation:

Hemoglobin is an iron containing compound present in red blood cells which carries oxygen in the body. mRNA molecule contains exon coding for two proteins. mRNA molecule becomes associated with four to six ribosomes.

The statements on the left are correctly matched with the choices given on the right are:

Increase the transcription of a gene -------- Activator.DNA binding protein ------ Ribosome, Polymerases.Block the promoter region of a gene ------ Repressor. Found associated with the gene encoding HCl production in a skin cell -------- mRNAs.Found associated with the genes encoding hemoglobin in a red blood cell -------- mRNAs.

What do you mean by a Gene?

A gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein.

An activator is known to increase the transcription of a gene, while a repressor binds to the promoter region and inhibits the transcription process. The molecules of mRNA get associated with the gene HBA, HBB which encodes for hemoglobin in red blood cells. Ribosomes and polymerases are known for DNA binding protein.

Therefore, above are all the statements on the left that are correctly matched with the choices given on the right.

To learn more about the Transcription process, refer to the link:

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What effect does planting trees and bushes on a steep hill have?



A- It makes the hill a good habitat for animals.

B- It provides oxygen to the soil.

C- Over time, it will help the hill grow taller.

D- It helps stop erosion.

Answers

Answer:

D- It helps stop erosion.

Explanation:

Erosion can be defined as a geological process which typically involves the wearing out of earthen (soil) materials and the transportation of these materials by natural forces like water, wind, etc. Soil erosion is greatest when the soil is steep.

The steepness of a body such as river or stream refers to the downward slope or gradient of the body of water.

Generally, the steepness of a body affects the rate at which other materials would flow or move around. Thus, the steeper a river or stream, the greater would be its rate of erosion. Other factors that affect the rate of erosion in an area include the following; farm management, rainfall, climate, soil type, soil cover, landscape, type of wave, crops, rock strength and position of coast.

In order to mitigate or stop the rate of erosion in an environment, trees and bushes should be planted on a steep hill because they will obstruct the free flow of water, as well as absorbing it.

Which of the following statements best describes the importance of
nutrient cycling?

Answers

Answer:

Since there are no choices to this question, I think it restores ecosystems or the organisms physical environment to a state called the "Equilibrium State".

Explanation:

The Equilibrium State keeps the ecosystems functioning. Nutrient cycles link or put the living organisms with the non living organisms together throughout the flow of the nutrients in the cycle. Remember that living and non living organisms always depend on each other.

I hope this answers your question! :)

Which are consumers?
SELECT ALL THAT APPLY
a Producers
b Grazers
С
Predators
d Scavengers
e Photosynthesizing plants
f Decomposers

Answers

Answer:

b,c,d,f

Explanation:

they are the ones who consume the produce

why can the plant grow new parts but we cannot?​

Answers

Answer: because, humans can't/don't regenerate in the same way

Explanation:

Plants excel in regenerating new parts due to factors like meristematic tissues, totipotency, indeterminate growth, and unique genetic traits. These enable continuous cell division, organ regeneration, and lifelong growth, while human regenerative abilities are more limited and specialized.

Plants have the remarkable ability to grow new parts due to their unique characteristics and physiological processes. While humans and other animals also have the ability to regenerate certain tissues and organs. Here are a few reasons why plants can grow new parts more effectively:

Meristematic Tissues: Plants have specialized regions called meristems that contain undifferentiated cells capable of continuous division and differentiation. These meristematic tissues are found in areas such as the tips of roots and shoots, allowing for continuous growth and regeneration. In contrast, humans have limited areas of active cell division, such as the bone marrow and the skin's basal layer, which restricts our regenerative capacity.

Totipotency: Plant cells have a higher degree of totipotency, meaning they have the potential to differentiate into various cell types and give rise to a whole plant. This property allows plants to regenerate entire organs, such as roots, stems, leaves, and even whole plants from small tissue pieces. In humans, cell differentiation is more specialized and limited, making it challenging to regenerate complete organs.

Indeterminate Growth: Most plants exhibit indeterminate growth, meaning they can grow throughout their lifespan. This continuous growth allows plants to replace damaged or lost parts by generating new tissues and organs. In contrast, humans and animals typically have determinate growth, where growth ceases or significantly slows down after reaching a certain size or age.

Hence, plants grow, but humans can't grow.

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a diagram that models the process of photosynthesis is shown below complete the diagram by filling in the missing labels.
I have this so far

Answers

Answer:

reactants = carbon dioxide & water

energy source = light

waste product = oxygen

primary energy = glucose

Explanation:

The energy source is light, reactants are carbon dioxide and water, the waste product is oxygen and primary energy is glucose.

What is photosynthesis?

The sustainability of the significant number of life on Earth depends on photosynthesis. It is how almost all of the energy in the biosphere is made accessible to living beings.

All higher living forms on Earth consume photosynthetic organisms directly or indirectly since they are the primary producers that serve as the foundation of the planet's food webs.

Additionally, photosynthesis is responsible for producing virtually all of the oxygen in the atmosphere. The majority of creatures would vanish, there might soon be little food or other organic stuff on Earth, and the atmosphere would eventually be almost barren of gaseous oxygen if photosynthesis stopped.

Commonly used notation for photosynthesis is: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂. This indicates that the reactants, six carbon dioxide molecules, and six water molecules, are transformed into a sugar molecule and six oxygen molecules, the products, by light energy being absorbed by chlorophyll (implied by the arrow).

The creature consumes the sugar, and as a byproduct, oxygen is produced.

Therefore, the energy source is light, reactants are carbon dioxide and water, the waste product is oxygen and the primary energy is glucose.

Read more about photosynthesis, here

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eselson and Stahl relied on equilibrium density gradient centrifugation to resolve the DNA containing 14N from the DNA containing 15N.They started off with DNA in media containing the heavy isotope, then switched to media containing the lighter isotope and allowed DNA replication to take place. Under semiconservative model of DNA replication, after THREE rounds of replication, how many bands of DNA would you see and which band would contain more DNA molecules

Answers

Answer:

The correct answer would be - two bands ( one intermediate, and one light)- the light band contains more DNA molecules.

Explanation:

After the switching to the lighter isotope by the second round of replication where light strands are used as template strands, produces the light band of 14N.

After three rounds of semiconservative replication, where template strand contains both heavy and new formed light bands or nitrogen and produces so in a Density gradient, there will be 2 bands one light band and the other intermediate band.

what is urbanization​

Answers

Explanation:

the process of expanding residential areas or establishing cities or towns by constructing large buildings in search of modern facilities is called urbanization.

hope it helps

Grasses
Grasshoppers
Frogs
Hawks
Snakes
Decomposers
Which organisms in the food web shown above compete for the same
food source in this environment?

Answers

Answer:

Frogs and snakes.

Explanation:

I answered this question for another person, plus, this is the only reasonable answer.

12. The best plate to cultivate enteric bacteria is?
A. EMB
B. Blood agar
C. Mannitol salt
D. Sabouraud agar plate

13. The Ingredient in Hektoen plate which makes the agar selective is?
A. Salt
B. Glucose
C. Mannitol
D. Bile acids

14. The enteric plates are only allowing the growth of ?
A. Gram negative bacteria
B. Gram positive bacteria
C. Anaerobes

Answers

Answer:

A.) EMB (Eiosin Methylene Blue)

B.) Hektoen Agar contains Bile salt which makes it selective medium.

C.) Gram Negative

what is a scienctific theory

Answers

Answer:

" A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world."

Explanation:

- Eijiro <3

please help!!!
what do mature red blood cells lack, and as a result cannot produce protein or reproduce?
- mitochondria
-cell membrane
-sodium channels
-nuclei

Answers

Answer:

4th answer nuclei

4th unciel! It’s easy

The function of the liver in humans is to maintain the [glucose] circulating in the blood stream at reasonably constant levels. This is so organs like the brain that use primarily glucose as their carbon source to produce energy via ATP have a steady supply of glucose. It also ensures that the levels of glucose in the blood stream do not get too high. Using the plots from problem 6, discuss why it makes sense that glucokinase in liver would behave differently than the hexokinase in other cells.

Answers

Answer:

Due to difference in function.

Explanation:

Glucokinase in liver behave differently than the hexokinase in other cells because glucokinase performs different function in the body. Glucokinase is an enzyme that is responsible for sensing the glucose level in the blood and also plays a key role in the storing of glucose as glycogen while on the other hand, this storing ability is absent in hexokinase so that's why the glucokinase in liver behave differently than the hexokinase in other cells.

A 1.0-kb DNA fragment from the 5' end of the mouse gene is examined by DNA footprint protection analysis. Two samples are end-labeled with 32P, and one of the two is mixed with TFIIB, TFIID, and RNA polymerase II. Both samples are exposed to DNase I. The results are displayed below. The DNA exposed to proteins is run in the right-hand lane of the gel. Control DNA is in the left-hand lane.

Required:
What length of DNA is bound by the transcriptional proteins?

Answers

Answer:

Explanation:

Proteins, such as RNA (ribonucleic acid) polymerase, were loaded into lane 2. TFIIB and TFIID are two forms of TFII. These proteins attach to the fragment of DNA. Furthermore, these proteins shield DNA from the DNase enzyme, which may trigger DNA to split. As a result of the above findings, we may conclude that the inserting proteins(RNA polymerase, TFIID and TR 8 proteins) cover the area between 500 and 800 bp (base pair) in the DNase I footprinting experiment.

As a consequence, the length duration is 300bp since the promoter area is about 500-800bp and is not digested by DNase after incubation of inserting proteins.

In the year 2000, more than 225 million acres of forests were burned throughout the
world. A forest fire can have a dramatic effect on the plants and animals that live in a
forest.
• Describe one negative and one positive effect of a forest fire.
One way of controlling how severe a forest fire becomes is to deliberately set small
fires in what is known as a "controlled burn."
• Describe two ways that a controlled burn can benefit a forest.
Name the type of ecological succession that would occur after after a forest fire.

Answers

Answer:

In 1960, the U.S. Forest Service started keeping detailed records of damage caused by wildfires. ... Between 2000 and 2013, nearly 161 million acres were consumed by wildfires -- more in 13 years than in the previous 40 years, combined. ... they would have been had fuel sources been able to burn off naturally over time.

Missing: 225 ‎| Must include: 225

Explanation:


6. What two places might a free-floating DA molecule end up?

Answers

is there any answer choices before i start answering ur question

5×8+2÷2×3
what is the answer

Answers

Answer:

is this a joke

Explanation:

5/8 : 2 2/3 = 1564 = 0.234375

What has changed in the world that has resulted in the drastic increase of carbon dioxide levels in the atmosphere?

Answers

Answer: On Earth, human activities are changing the natural greenhouse. Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.

Explanation:

What is not a job of the skin tissue?
Regulates body temperature
O Protects interior of the body
Contains nerves to sense external environment
O Provides support for bones

Answers

Answer:

provides support for bones

Will give brainliest

NO LINK SHARING OR U WILL BE REPORTED

After an initial infection of the measles virus, B-cells recognize the measles virus in your body. How is this helpful in human immune response? (SC.912. L.14.52)
ws
O The B-Cells transfer this recognition to T-cells, which will then devour the viruses
o The B-cells use this recognition to defend the body against the B-cells more quickly recognize and respond to any other virus that invades the body
O The B-Cells more quickly recognize the response to any other virus that invades the body
O The B-cells produce antibodies more quickly if the measles virus is encountered again

Answers

Answer: it’s D

Explanation:

A 66-year-old man has difficulty controlling voluntary movements. He can clearly state what he intends to do, describe how he would do it, and initiate or stop the movement. However, he has poor coordination and often misses his target. If his difficulty arises from a defect in one particular area of the central nervous system, which area is most likely to be involved

Answers

Answer:

Cerebrum

Explanation:

Cerebrum is the part of central nervous system that is responsible for the voluntary movement. If there is poor coordination between cerebrum and the muscles so the person has difficulty in controlling his voluntary actions or movement. Somatic nervous system is a part of the peripheral nervous system responsible for the voluntary movements of body parts through the use of skeletal muscles so we can say that both cerebrum and somatic nervous system is responsible for voluntary actions.

A cell that contains 10% NaCl is sitting in a solution of 30% NaCl. Due to osmosis which direction will water move?

Into and out of the cell at equal rates

Out of the cell

There will be no water movement

Into the cell

Answers

Answer:

I think out of the cell!

Hope it helps..

A substance whose shape can easily change is a
a.
solid.
b.
powder.
c.
fluid.
d.
metal.


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

fluid.

Explanation:

because there molecules can freely move and take the shape of any container

Which gene may play a role in patterning the forelimb?

Answers

Answer: Posterior HoxA and HoxD genes play important roles in patterning along the proximodistal axis of the forelimb (10–13). They also are required for activating and maintaining Shh expression in the developing forelimb (6, 7). mark brainliest

Explanation:

Why do males determine the sex of the offspring in humans?
1
they have testosterone
they have two different sex chromosomes
they have no sex chromosomes
males do not determine the sex of offspring in humans
o they have two of the same sex chromosomes

Answers

Answer:

males do not determine the sex of offspring

Explanation:

this question lacks intellectual merit on multiple levels of analysis

What are the two factors that determine the boundaries of a biome?

altitude

temperature

precipitation

latitude

Answers

Answer:

A. altitude

and

D. latitude

Explanation:

hope this helps! :D

The two factors that determine the boundaries of a biome are temperature and precipitation, which are the second and third options, as they help to shape the unique features of each biome.

What is the significance of the precipitation and temperature?

Temperature plays a key role in determining the type of vegetation, such as in colder regions where low temperatures limit the types of plants that can grow, while in warmer regions the growth of tropical rainforests is seen. Precipitation plays an important role too, as in areas with high levels of precipitation, such as tropical rainforests, dense vegetation is seen, and in dry regions with low levels of precipitation, deserts are seen.

Hence, the two factors that determine the boundaries of a biome are temperature and precipitation, which are the second and third options, as they help to shape the unique features of each biome.

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I need help please help

Answers

Answer:

its d cause

Explanation:

Correlative Conjunctions are pairs of words used to connect two parts of a sentence with equal value.

How many grams of water can be heated from 20.0 oC to 75oC using 12500.0 Joules? The specific heat of water = 4.186 joule/gram °C

Answers

Answer:

The correct answer is - 0.054 kg

Explanation:

Given:

change in temperature: 55°C

Heat energy = 12500 J

specific heat = 4.186

Formula:

The formula for Heat Energy is given by:

Q = mcp∆T

here: Q - Heat Energy

m is for mass

cp is for specific heat

∆T is a change in temperature,

Solution:

From formula,

m = Q/ cΔT

Mass = 12500 / (55 × 4200)

= 0.054 kg or 54 g

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For patients who have been given a diabetes test, blood-glucose readings are approximately normally distributed with mean 127 mg/dl and a standard deviation 10 mg/dl. Suppose that a sample of 4 patients will be selected and the sample mean blood-glucose level will be computed. Enter answers rounded to three decimal places.According to the empirical rule, in 95 percent of samples the SAMPLE MEAN blood-glucose level will be between the lower-bound of [BLANK] and the upper-bound of [BLANK] A Florida Keys motel and a nearby SCUBA dive center regularly send each other customers. The dive center attracts customers to the motel which is conveniently located near the dive center. The dive center also sends customers to other motels in the area. The motel owner learns a lot about the SCUBA dive business in the process. What would be the most likely long-term consequence of this business relationship? The motel owner will stop sending customers to the dive center and will instead send customers to the dive center's competitors. The motel owner will greatly increase the rental price of his motel rooms to customers that come from the dive center. The motel owner will open a dive center to give customers incentive to stay in his motel and to earn profits from both businesses. The motel owner will sever his ties with the SCUBA dive center because the dive center sends customers to the motel's competitors. What are they coordinates Which ocean forms most of the western border of Argentina?A. The Southern OceanB. The Atlantic OceanC.The Pacific Ocean Describe two causes and two effects the Civil War had on Texas. use your own knowledge to identify the name of Tsarina Why does the mass of a substance remain the same after a chemical reaction How was english handling all of the events going on? What do you think will occur from this All american boys 17. What is the molarity of ZnCl2 that forms when 15 grams of Zn reacts completely with CuCl, if afinal volume of 175 mL is produced?Zn + CuCl2 ZnCl2 + Cu Annette had a 24 karat gold necklace with a mass of 2.3grams. she sold for $123.51.What was the price per gram of her necklace? Please Help!Factor the following trinomial[tex]9x^2-24x+16[/tex]Please show work When formatting a presentation, which considerations should you keep in mind? Select four choices. The layout is appealing and simple. The thesis statement does not need to be included. Fonts and colors are light. The slides are organized in a logical sequence. Any labels or captions are short and clear. Which best describes the energy of a sound wave as it travels through a medium? It increases.lt decreases. It remains the sam.It depends on the medium, Read the following description: In a story, a prince must discover the source of amysterious mist that is covering the kingdom, preventingcrops from growing. The prince travels to the top of amountain and discovers a lonely dragon whose tears arecreating the mist. The dragon is gentle and kind, but thekingdom's residents fear him. The prince tells the peoplethat the dragon is harmless. They befriend the dragon, thecrops are saved, and the dragon becomes an officialprotector of the kingdom.What are two literary themes that can be identified in this description?A. The difficulties of leadership and the importance of identifyingothers' skillsB. The importance of not prejudging others and the value ofnonviolent solutionsC. The value of community and the dangers of standing outD. The challenges of cooperation and the importance of economicsuccess Write the equation of the line in y = mx + b form from the given information. The line passes through the point (1, 5) and has a slope of 2. Lincoln Corporation used the following data to evaluate their current operating system. The company sells items for $18 each and used a budgeted selling price of $18 per unit. Actual Budgeted Units sold 45,000 units 31,000 units Variable costs $161,000 $150,000 Fixed costs $44,000 $50,000 What is the static-budget variance of variable cost please help meeeeeeeeee say hello in a sentence a long sentence Jonathan went to the movies with $48 he earned at his after-school job. The ticket cost $8.75. He spent $7.45 for refreshments. How much money did he have left? Now I know that structures in a simple nervous system differ from those in a complex nervous system in that they have apls answer this seriously.thx!!