Which item is a carbon source?
OA. Burning of fossil fuels
OB. Fossil-fuel deposits
O C. Limestone rock formations
OD. Replanting of rain forests

Answers

Answer 1

Answer:

A

Explanation:

Burning of fossil fuels

Answer 2
A: burning of fossil fuels; this is because burning fossil fuels leads to carbon emissions in the air

Related Questions

How does each new cell formed by cell division differ from the mature cell?
OA. Each new cell has a smaller ratio of surface area to volume.
B. Each new cell has a larger ratio of surface area to volume.
O C. Each new cell has different information in its nucleus.
D. Each new cell has fewer chromosomes in its nucleus.​

Answers

C . Each new cell has different information in its nucleus

Which eye structure is primarily responsible for making the adjustments required to focus on objects both near and far?.

Answers

Answer:

The lens

It helps to focus on objects and light

EASYYYYYY
If global warming continues, what do you think will happen to the glaciers and icecaps of the Earth? What consequences will this have for people and other living things?

Answers

Answer:

Glaciers and Icecaps will melt.

The Consequences would be,

- Animals will lose their habitat due to melted Icecaps. Animals like polar bears, arctic foxes, snowy owls, reindeer, etc. They may also get extinct.

- It will create more frequent and intense coastal storms like hurricanes and typhoons.

- Coniferous plants will have problems

Answer:

The glaciers and icecaps will eventually melt

Which statements describe how traits are inherited? Check all that apply.
An offspring always receives different alleles from each parent.
An offspring always receives the same alleles from each parent.
An offspring can receive different alleles or the same alleles from each parent.
Traits are inherited when proteins are passed from parents to offspring.
Traits are inherited when genes are passed from parents to offspring.
00

Answers

The  statements describe how traits are inherited are:

Traits are inherited when genes are passed from parents to offspring.An offspring can receive different alleles or the same alleles from each parent.

What are traits?

Dominant traits are always expressed when the connected allele is dominant, even if only one copy exists.

Recessive traits are expressed only if both the connected alleles are recessive.

Polygenetic traits are basically the traits that are controlled by two or more genes.

Thus, option "3 and 5" is correct.

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a. Worldwide, what percentage of human water usage does industry account for? (Note: This relates to water usage now, not water supply.) What is the percentage in the United States?

Answers

Explanation:

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Describe the medicinal value of mushroom​

Answers

Answer:

Mecdicinal Value Of Mushroom

Explanation:

Mushroom are antibacterial, immune system inhancer and cholesterol lowing agents; additionally, they are important sources of bioactive compounds. As a result of these properties, some mushroom extracts are used to promote human health and are found as dietary supplements.

I hope this will help you.

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Which of these organelles is found in plant cells but not in animal cells

Answers

Answer:

option d

central vacuole

Answer:

Animal cells do not have a central vacuole. Central Vacuole is used to store water and maintain turgor pressure in plant cells. Hope it helps!

items that are cycled through the biosphere in biogeochemical cycles.

Answers

Answer:water, carbon, nitrogen, phosphorus, and sulfur cycles.

Explanation:XD

What topic level do herbivores occupy in a food chain

Answers

Answer:

herbivores are primary consumer, which means they occupy the second trophic level and eat producer

What two issues did different groups of reagan supporters agree on during the 1980 election?

Answers

During the 1980 election, the two issues which different groups of Reagan supporters agreed on were:

A forceful foreign policy.A strong military.

Who is Reagan?

Ronald Wilson Reagan was an American politician born on the 6th of February, 1911 in Tampico, Illinois, United States of America. Also, Reagan was elected by American citizens to serve as the 40th president of the United States of America between 1981 and 1989.

During the 1980 election in the United States of America, the two issues which different groups of Ronald Wilson Reagan supporters agreed on include the following:

A forceful foreign policy.A strong military.

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Match the following terms and definitions.
"inner skin"; layer of cells that develop on the inside of the
embryo
process in early embryonic development that forms layers of
cells
1.
2.
"middle skin"; layer of cells that develops between the
3. ectoderm and endoderm; turns into organs, muscle, and
circulatory vessels
organisms that form by spiral cleavage and develop a mouth
4. from the first indentation of the gastrula stage of embryonic
development; includes most invertebrates
5.
an animal with a false body cavity separating the mesoderm
and endoderm
6.
a characteristic of animals that have subdivisions of repeated
body parts
gastrulation
protostomes
endoderm
mesoderm
pseudocoelomate
segmentation

Answers

The answer is as follow:

Inner skin"; layer of cells that develop on the inside of theembryo process in early embryonic development that forms layers of cells is gastrulation"Middle skin"; layer of cells that develops between the endoderm Ectoderm and endoderm; turns into organs, muscle, and circulatory vessels organisms that form by spiral cleavage and develop a mouth mesoderm From the first indentation of the gastrula stage of embryonic development; includes most invertebrates protostomesAn animal with a false body cavity separating the mesoderm and endoderm pseudocoelomateA characteristic of animals that have subdivisions of repeated body parts segmentation

What is Gastrulation?

This process of embryonic tissue development is called Gastrulation. This is a phase during the embryonic development of most animals during which the single-layered blastula is reorganized into a trilaminar which is a three layered structure called the gastrula.

The layers are namely; the ectoderm, mesoderm, and endoderm.  Endoderm the most internal layer forms the lining of the gut and other internal organs.

Thus, this could be the answer.

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1. Gastrulation

2. Endoderm

3. Mesoderm

4. Protosomes

5. pseudocoelomate

6. Segmentation

The smallest contractile unit within skeletal muscle would correspond to the distance between which two points in the figure?

Answers

The distance between 1 and 7 spans a sarcomere correspond the structure at B is covered by the perimysium.

What is the smallest contractile unit within skeletal muscle?

A sarcomere comprises the segment between two consecutive Z lines and is the contractile unit of the muscle fiber, as it is the smallest portion of the muscle fiber capable of contraction and distension.

In this case, the distance between points 1 and 7 has the smallest structure of a skeletal muscle and corresponds to figure B.

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Why is blood glucose self-monitoring preferred over urine glucose testing?

Answers

Blood glucose self-monitoring is preferred over urine glucose testing because it is more accurate.

What is glucose testing?

Glucose testing refers to the methodologies to measure the amount of this simple carbohydrate in the body tissues/organs.

Glucose testing is fundamental to assess the diseases associated with the metabolism of this nutrient (e.g., diabetes)

In conclusion, blood glucose self-monitoring is preferred over urine glucose testing because it is more accurate.

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Which would cause postsynaptic stimulation to end?.

Answers

Options:

A. They depend on the myelination of nerve axons

B. They include EPSPs and IPSPs

C. They are changes in the membrane potential of the postsynaptic terminal of a chemical synapse

D. They are caused by neurotransmitters

Answer:

They include EPSPs and IPSPsThey are changes in the membrane potential of the postsynaptic terminal of a chemical synapseThey are caused by neurotransmitters.  Thus, the correct option is B, C, D.

What is postsynaptic stimulation?

An additional neuron known as a fascilitator is triggered when the postsynaptic neuron receives an unconditioned stimulation. The presynaptic neuron then responds to this cell, leading to sensitization.

When the neurotransmitter separates from its receptor, postsynaptic potentials start to be terminated. After that, the receptor is free to resume its original structural form. The receptor will now reopen ion channels that were opened when the neurotransmitter was attached to it.

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What are the environmental impacts of wheat bran?

Answers

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Our comparative life cycle assessment shows that in flour system, using wheat bran for biocomposite production rather than wasting it, lowers the overall environmental impacts including global warming and fossil fuel depletion mainly due to bran fiber replacing polypropylene, and avoiding carbon dioxide emissions from .

Answer:

Using wheat bran for bio-composite production rather than wasting it, lowers the overall environmental impacts including global warming and fossil fuel depletion mainly due to bran fiber replacing polypropylene, and avoiding carbon dioxide emissions from .

Bio-based materials are increasingly proposed as sustainable alternatives to fossil-based products. Before commercialization, however, the environmental performance of bio-based materials must be evaluated to ensure the sustainability goals are met. Bio-composites derived from natural fibers hold promises for achieving the desired sustainability while offering competitive performance.

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Explanation:

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What is the lock and key theory?

Answers

Lock and key theory states that enzymes have a specific shape that directly correlates to the shape of the substrate.

What is the lock and key theory of enzymes?

Enzymes are globular protein that catalyses a biological chemical reaction.

One of the characteristics of enzymes is that they are usually substrate-specific i.e. They bind and act to a particular substrate.

This characteristics is explained by the lock and key theory of enzymes, which states that enzymes have a specific shape that directly correlates to the shape of the substrate.

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major arteries of the brain

Answers

The main arteries of the brain are the vertebral and basilar arteries.

What are the main arteries of the brain?

The vertebral and basilar arteries supply the

brainstemcerebellumposterior cerebral cortexand medial temporal lobe.

The posterior cerebral arteries bifurcate from the basilar artery to supply the medial temporal (including the hippocampus) and occipital lobes, thalamus, and mammillary and geniculate bodies.

With this information, we can conclude that the main arteries of the brain are the vertebral and basilar arteries.

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An Rh negative mother has just given birth to an Rh positive baby after 18 hours of strenuous labor. Her rosette test was positive. Upon performing the Kleihauer-Betke stain procedure, the percentage of fetal cells is found to be 1.9%. The mother's total blood volume is 5,000 mL. What dose of Rh Ig (RhoGam) should be administered to the mother

Answers

The mother should have 4 vials of Rh Ig administered.

How to calculate the value?

Rh immune globulin is used to help prevent an Rh-negative mother from becoming sensitized to the D antigen from an Rh-positive baby.

To calculate how many vials are needed, the following formula can be employed:

KB% x blood volume = volume of baby blood

In this case: 1.9% x 5,000mL = 95 mL baby blood in maternal circulation

95mL / 30 mL per Rh Ig vial = 3.17 vials

This equals 3 vials (after rounding), with the addition of 1 extra vial = the mother should have 4 vials of Rh Ig administered.

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what type of competition is evident amongst the squirrels​

Answers

Answer:

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They are the interference competition and exploitation competition for food and space between red and grey squirrels and have showed that grey squirrels caused reduced body growth in juvenile and subadult red squirrels, and compete for tree seeds cached by adult red squirrels in spring.

What is dynamic instability and why is it
necessary?

Answers

Dynamic instability helps is the frequent growth and shrinkage of microtubules at a constant rate and it helps in the organization of microtubules into arrays.

What is dynamic instability?

Dynamic instability refers to the constant growth and shrinkage of microtubules at a constant rate.

Dynamic instability is important as it plays an important role in the cell cell cycle.

Dynamic instability helps in the organization of microtubules into arrays which are found throughout the cell cycle.

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______________ are infectious agents composed exclusively of a single piece of circular, single-stranded RNA which has some double-stranded regions.
Viroids
Pollinators
Conductors
Capsids

Answers

Answer:

viroids

Explanation:

Viroids are infectious agents composed exclusively of a single piece of circular single stranded RNA which has some double-stranded regions.

What causes an ionc bond?​

Answers

An ionic bond can be formed after two or more atoms loss or gain electrons to form an ion. Ionic bonds occur between metals, losing electrons, and nonmetals, gaining electrons. Ions with opposite charges will attract one another creating an ionic bond.
After two or more atoms loss or gain electrons to form an ion

During meiosis, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles. This statement corresponds to

Answers

During meiosis, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles. This statement corresponds to the law of independent assortment.

What does the law of independent assortment say?

Mendel's Second Law, also known as the Law of Independent Segregation, states that the factors (alleles) for two or more traits are independently distributed during gamete formation and combine at random.

So in this case, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles represents Mendel's second law.

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After absorption, long-chain fatty acids and monoglycerides inside intestinal cells are:

Answers

After absorption, long-chain fatty acids and monoglycerides inside intestinal cells are reformed into triglycerides.

What are triglycerides?

Triglycerides are lipids in the body composed of three fatty acids and one glycerol molecule.

Triglycerides are a fundamental lipid in the blood and they serve as a source of high-level energy.

In conclusion, after absorption, long-chain fatty acids and monoglycerides inside intestinal cells are reformed into triglycerides.

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A scientist notices that a lump of niobium is warm to the touch and wonders if nuclear reactions are taking place in the metal. How can she find out?.

Answers

Checking for the presence of alpha, beta, and gamma particles will determine if nuclear reactions are taking place.

What is a Nuclear reaction?

This reaction occurs when two or more nuclei fuse together to form a new one and is characterized by heat also.

Its unique property is the presence of radiations which is why the presence of alpha, beta, and gamma particles should be checked.

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A scientist can find out whether a nuclear reaction is taking place or not by inspecting the presence of alpha, beta, and gamma particles.

What is Nuclear Reaction?

A nuclear reaction may be defined as a strategy in which the nucleus of an atom is transformed by being shattered apart or united with the nucleus of another atom.

The complete question is as follows:

Measure the metal’s temperature.Check for the presence of alpha, beta, and gamma particles.Look for the presence of niobium compounds.Place the niobium in a pressurized container, and see if the lump becomes warmer.

Therefore, the correct option for this question is B. This is because the influential existence of these particles is a characteristic indicator of radioactive decay which means unstable atoms spontaneously experience a nuclear reaction.

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Describe the steps involved in the release of neurotransmitter into a synaptic cleft to bind to its receptor.

Answers

Answer:

Polarization and depolarization

Explanation:

The transfer of signal happens by the exchange of sodium and potassium ions in and out of the cell membrane of neuron.

A conservationists states that "we need to preserve the ocean because 95% of it is yet unexplored". why is ocean exploration important to human society? back your claim by giving three specific examples of how ocean exploration has resulted in the development of technologies that can potentially benefit human society.

Answers

Explanation:

Ocean exploration technology has advanced much more than before in the past decade.Ocean exploration can help with monitoring the deep sea.So much ocean explored by scientists begin to propel prediction of marine creatures numbers and direction of environment change, which finally keeps biological balance.Humans actively develop other ocean resources to resolve ore resources and ocean energy resources as one of benefits deep sea exploration.

The area around the Sahara Desert is slowly changing into a dry region, similar to the desert. Which trait is most likely to be selected in the population of plants growing in this region?
A.
trait encoding for short plant structure to reduce transport of water
B.
trait encoding for thick bark on trees
C.
trait encoding for increased leaf size to increase photosynthesis
D.
trait encoding for fruit

Answers

The trait that is most likely to be selected in the population of plants growing in this region is trait encoding for short plant structure to reduce transport of water.

How are desert plants adapted?

Adaptation is any change that is made or undergone to suit a condition or environment.

Desert plants are adapted to the dry condition of the area by the possession of several traits.

According to this question, the area around the Sahara Desert is slowly changing into a dry region, similar to the desert.

This suggests that the trait that is most likely to be selected in the population of plants growing in this region is trait encoding for short plant structure to reduce transport of water.

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Answer:trait encoding for short plant structure to reduce transport of water

Explanation:The Sahara Desert is a zone which receives very low or no precipitation. This region receives maximum of sunlight not received by any other biome. The soil is typically sand which is highly porous and lacks essential growth nutrients necessary for plant growth. The plants grown around Sahara Desert are xerophytic plants. These plants undergoes several adaptations in order to prevent loss of water through transpiration. Trait encoding for short plant structure to reduce transport of water is a xerophytic adaptation.

what has caused a 90 ecrease in southern california steelhead run sizes?

Answers

Answer:

The cause of the 90 decreases in southern California steelhead run sizes are because of the dams along the water sources and it has cause 90% decrease in the southern California steelhead run sizes. The Dam alter aquatic ecology cause the river hydrology up steam and down steam which cause the affecting water quality.

The reason why the Southern California steelhead run sizes has decreased by 90% is the construction of dams along water sources.

What is a dam?

The dam is a large structure that serves the purpose of holding back water and making its level to rise quite high. Dams could be used for the purpose of electricity generation.

The reason why the Southern California steelhead run sizes has decreased by 90% is the construction of dams along water sources.

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nutrients from croplands are carried by the mississippi river into the gulf of mexico. if nutrients are good for growth, why are scientists concerned about this nutrient influx?

Answers

Scientists should be concerned because the nutrient may cause eutrophication.

What is eutrophication?

It is the enrichment of water bodies leading to the bloom of aquatic plant species and its associated detrimental effects on the ecosystem.

Nutrient enrichment of water bodies may cause a rapid bloom of algae, thereby limiting the amount of light and oxygen in water bodies. The bloom may also constitute a nuisance to waterways.

This, in turn, may cause the death of aquatic animals whose decay gives an obnoxious odor and depletes dissolved oxygen further.

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Other Questions
Place the following statements in the correct order in the blanks below to describe how gas exchange occurs in the leaf. Make sure you include how the gas enters, and how it exits the leaf. Some statements may be used more than once. a. Diffuses into air pockets b. Diffuses into palisade cells c. CO2(g) is converted into O2(g) d. Diffuses through spongy tissue layer e. Moves through open stomata ____ ____ ____ ____ ____ ____ ____ ____ ____ Question 7: What conclusions can you make about how a change in the condition of the ocean affects the different species in coral reefs? The Mountain States Office of State Farm Insurance Company reports that approximately 84% of all automobile damage liability claims were made by people under 25 years of age. A random sample of ten automobile insurance liability claims is under study. A group of sea otters is called a raft. These rafts can number anywhere from 10 to 100 animals. Sea otter rafts are generally segregated by gender. Male rafts are usually larger than the female groups. Sea otters often hold hands when sleeping to keep from drifting away from the raft. They will also wrap themselves in long strands of seaweed to anchor themselves together. a) A raft is a group of sea otters that includes 10 to 100 male and female animals that work together to fight off predators to secure the safety of the raft.b)In male rafts and female rafts, sea otters make sure each member is safe by holding hands when sleeping and anchoring themselves to seaweed to ensure no member floats away.c)Large groups of sea otters are called rafts, which are separated into groups of males and females.d)Sea otters are very friendly and affectionate animals because they hold hands with each other. G4When the family first arrived at Manzanar, tin can lids were used:as small plates to feed the children.to cover knotholes in the floor and walls to keep the dust out.to make a wind chime. look at the attachments the last one at the bottomm c is200please i really need help its khan what are some ergonomic considerations for auditors? raios of 3 The ratboys to 5 girls 10. Which of the following statements about online relationships is true?a. You can always trust that someone will represent their real self-online.b. Even your best friend can cause you to have red flag feelings.c. Only people you don't know in real life can cause you to have red flag feelings.d. It is always obvious when someone online has negative intentions. How the political and economic transformations in the world led to the creation of the silk road and how the silk road in return, affected the cosmopolitan world? The equation of a circle is x + y-6y+1=0. What are the coordinates ofthe center and the length of the radius of this circle?(1) center (0,3) and radius 22(2) center (0,-3) and radius 22(3) center (0.6) and radius 35(4) center (0,-6) and radius 35 The marketing concept that states that a business must find out what consumers want and provide it for them is called the: Multiple choice question. profit orientation product orientation service orientation customer orientation please answer How is ozone different from oxygen?Ozone is toxic, corrosive and not breathable.Ozone is the same as oxygenOzone only exists in the upper atmosphere.Ozone is easier to breathe than normal oxygen. a. A set of electronic program that makes of computer perform tasks 1. Instructions 2. Software 3. Hardware 4. None of the Please help me do that. what is the correct solution to the problem 6 x 3/8? Karen and Anika chose the small business owners niche target market because of their limited resources and experience as entrepreneurs. A significant downside of targeting a niche market is What was one effect of the French and Indian war on Great Britain American colonies1 There are 5 types of fruit in a basket. There are 3 apples, 2 bananas, 4 oranges, 5 kiwi,and 1 passionfruit. You ask a friend to bring you a piece of fruit. What is the probability of them bringing you an apple? a small polar molecule enters a cell with help from a membrane protein. No addistional energy is needed to complete this process. What type of transport is this