what is the difference between a 1950 food pyramid and a 2000 food pyramid

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:

Answer:

B

Explanation:

because when you put a pencil in a water it being broke but it looks like it's broken first came out it's not working.

A basic meristematic structure called an intercalary meristem contains cells that can divide and aid in the growth of the plant. They are situated at the internode bases.

placed inside a calendar. a day of intercalation. containing an intercalary period (such as a day or month) of a year; interpolated; inserted between other things or sections.

As a result, the intercalary meristem in grasses is frequently called the grass meristem.

The meristems found at the base of an internode's stem or leaf are known as intercalary meristems.

It aids in the lengthening and expansion of plants' nodes and internodes (stems and leaves), as well as their longitudinal growth (grasses).

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Answer:

A. Greenhouse gases levels would decrease.

Explanation:

Hope this helps!

Answer:

A. Greenhouse gases levels would decrease

Explanation:

Burning fossil fuels like coal, oil and natural gas for energy releases greenhouse gases like carbon dioxide and methane into the atmosphere. These greenhouse gases contribute to global warming by trapping heat in the atmosphere. If humans stopped burning fossil fuels, it would dramatically reduce the amount of new greenhouse gases being emitted. This would allow atmospheric greenhouse gas levels to gradually decrease over time as natural processes absorbed some of the excess gases.

The other answers are not likely results:

B. The polar ice caps would melt more quickly - Stopping fossil fuel combustion would actually help slow the melting of polar ice caps by reducing global warming.

C. There would be less oxygen in the atmosphere - Fossil fuel combustion does not significantly impact atmospheric oxygen levels.

D. Global warming would increase - Ending fossil fuel use would lead to less global warming in the long run by reducing greenhouse gas emissions.

So in summary, the most immediate and likely result of humans stopping fossil fuel combustion would be decreasing levels of greenhouse gases in the atmosphere, as option A states. This would then help slow climate change impacts like polar ice melting.

Answer:

I think C

Explanation:

New neurons are born not from mature nerve cells but rather develop from neural stem cells that remain in our brains throughout life. Indeed, in some brain areas, there is continual turnover of neurons - old ones die and new ones are born - and these new neurons can participate in circuits that underlie learning.

Answer:

Its C.

Explanation:

I got it right on edge2020

To get to the Chesapeake Bay from Charlottesville, water would travel eastward.

The South Fork Rivanna River Reservoir, which lies along Route 29 North and serves as the City of Charlottesville's main water source, and Ragged Mountain Reservoir both supply water to the city. Mechums and Moormans rivers make up the majority of this reservoir's water supply.

From the west, the James, York, Rappahannock, Potomac, Patuxent, Patapsco, and Susquehanna pour into the Bay.The Pocomoke, Wicomico, Nanticoke, Choptank, and Chester all approach from the east in a similar manner.

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The correct answer is the last option. A response to a stimulus that is coordinated with the muscular system

The stimulus here is the moth, and the response of the cat to the stimulus is coordinated by its muscular system.

Answer:

See the answer below

Explanation:

Nitrogen fixation is a process during which free atmospheric molecular nitrogen is converted into biologically usable forms such as ammonia, nitrates, and nitrites. The fixation of nitrogen is naturally carried out in two ways:

1. Direct conversion of molecular nitrogen to nitrates and or ammonia during lightning. The converted compound is washed into the soil by rain and becomes available to plants for uptake.

2. Biological nitrogen fixation: This involves the conversion of nitrogen to ammonium compounds by nitrogen-fixing bacteria that are usually associated with the root nodules of leguminous plants. The compounds thus formed become available for plant use.

Nitrogen can also be artificially fixed into nitrogen-rich fertilizers through various industrial processes. The fertilizers are applied to plants and get into the nitrogen cycle from thereon.

Much bigger than monosaccharides and disaccharides, polysaccharides are made up of hundreds of monosaccharides that are joined together to create polymers.

The right list of carbohydrates includes monosaccharide, disaccharide, polysaccharide, disaccharide, monosaccharide, polysaccharide, and monosaccharide, disaccharide, polysaccharide. This list displays the correct arrangement of the carbs from small to greater size.

Disaccharides, which are commonly thought as the following three main substances: sucrose, lactose, and maltose, are a significant source of energy in the diet. The most accessible disaccharide and most generally used naturally produced sweetener is sucrose, which is also known as table sugar.

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Dichotomous keys are used to identify organisms according to their traits. Bellow you will find the proposed dichotomous key to identify these fruits.

A dichotomous key is a significantly useful tool to classify organisms. The is used to identify organisms by describing different morphological traits, leading you to the correct taxonomic classification.

The term dichotomous refers to how information is provided. There are always two options (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism. The key describes specific morphological traits of organisms that are useful for differentiation.

1) a- Simple fruit -------------------------- 2

  b- Composed fruit -------------------  Pineapple

2) a- Unicarpelar ------------------------- 4

    b- Pluricarpelar ---------------------- 3

3) a- Polycarpic ----------------------------5

   b- Multiple ------------------------------  6

5) a- Pomus --------------- Apple

   b- Other ----------------- 7

7) a- Berry ---------------- 8

   b- Pepo ----------------- Melon

8) a- Acid and Sweet ----------------- Orange

   b- Acid and unsweetened ------- 9

9) a- Green colored ----------- Lime

   b- Yellow colored ----------- Lemon

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If Students in Mr. Klein’s chemistry class are conducting an experiment to calculate the specific heat of a copper sample. the lab team with an unresolved problem is: B. Team 2.

To determine whether any of the lab teams have an unresolved problem, we need to calculate the percent error for each team using the formula given:

percent error = (observed - true) / true x 100

For the accepted value of specific heat of copper, true value = 0.385 J/g°C.

a. Team 1 calculates 0.390 J/gºC

The percent error for Team 1 is:

percent error = (0.390 - 0.385) / 0.385 x 100

percent error = 1.3%

Since the percent error for Team 1 is less than 2%, their experiment meets Mr. Klein's requirement.

b. Team 2 calculates 0.395 J/gºC

The percent error for Team 2 is:

percent error = (0.395 - 0.385) / 0.385 x 100

percent error = 2.6%

Since the percent error for Team 2 is greater than 2%, their experiment does not meet Mr. Klein's requirement.

Therefore, the lab team with an unresolved problem is Team 2, and the correct answer is option (b).

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Answer:

Zebra mussels negatively impact ecosystems in many ways. They filter out algae that native species need for food and they attach to.

Explanation:

If a homozygous black pig (BB) is mated with another homozygous black big (BB), then the genotype of the offspring will be homozygous black (BB).

The term "genotype" refers to an organism's whole gene pool, or, in other words, the genetic makeup of that creature.

The phrase can also be used to describe the alleles, or different forms of a gene, that an organism carries in a more specific meaning.

The genotype of the offspring will be homozygous black (BB) if a homozygous black pig (BB) is mated with another homozygous black big (BB). Here black color trait is dominant.

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The simulation above is about the liquid level measurement. To solve the problem, we need to:

Liquid level measurement is a method to measure the volume of an object using the water level. When an object is added to the container, the liquid level is increased. The difference between the liquid level's after-and-before volume is also the total volume of said object.

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Answer:

i.d.k what?

Explanation:

Answer:

He lied

Explanation:

In this diagram, we can see a model of photosynthesis:

In the following diagram, we will find how respiration is carried out:

Answer:

Between 1964 and 1968, the number of US troops in Vietnam

.

Explanation:

answer B

The rock sample with 75% parent isotopes would be older than the one with 30% parent isotopes because it has had more time for the radioactive decay to occur that is mentioned in Option A.

Radioactive decay is the process by which the nucleus of an unstable atom spontaneously transforms into a more stable nucleus by emitting particles and/or energy. This transformation changes the number of protons and/or neutrons in the nucleus, creating a different element or isotope, and when a rock is formed, it contains a certain amount of parent isotopes but no daughter isotopes. As time passes, the parent isotopes decay into daughter isotopes, and the ratio of parent to daughter isotopes changes.

Hence, the rock sample with 75% parent isotopes would be older than the one with 30% parent isotopes that is mentioned in Option A.

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question is incomplete, complete question is below

Which rock sample would be older, one with

75% parent isotopes or one with 30% parent

isotope?Why?

A)sample with 75% parent isotopes would be older, has had more time for the radioactive decay

B)as time lacks

0.51  is the frequency of the T allele. Therefore option D is correct.

To determine the frequency of the T allele, we need to consider the number of T alleles present in the population.

The number of T alleles in the population can be calculated as follows:

Number of T alleles = (Number of TT individuals * 2) + (Number of Tt individuals * 1)

Number of T alleles = (28 * 2) + (46 * 1) = 56 + 46 = 102

Since there are a total of 200 alleles in the population (2 alleles per individual), the frequency of the T allele can be calculated as:

Frequency of T allele = Number of T alleles / Total number of alleles

Frequency of T allele = 102 / 200 = 0.51

Therefore, the frequency of the T allele is 0.51.

Thus, the correct answer is D. 0.51.

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Answer:

i think it's D and E...

*_*

The genotypes of the parents would be:

Parent 1: AA

Parent 2: AO

To determine the genotypes of the parents in this scenario, we can use the information about the blood types of their children and the inheritance patterns of blood types.

From the given information:

Child 1: Type A blood (genotype could be AA or AO)

Child 2: Type O blood (genotype must be OO)

Child 3: Type AB blood (genotype must be AB)

Child 4: Type B blood (genotype could be BB or BO)

Based on this, we can deduce the genotypes of the parents as follows:

Since child 1 has type A blood, the parents must have at least one A allele each. Therefore, one parent could have genotype AA (two A alleles) and the other parent could have genotype AO (one A allele and one O allele).

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The specific properties of the most desired organic semiconductors for solar panel technology may evolve as advancements are made in the field.

In the context of solar panel technology, the most desired type of organic semiconductors would typically possess the following characteristics:

High Efficiency: The organic semiconductors should have a high power conversion efficiency, meaning they can efficiently convert sunlight into electricity. This is crucial for maximizing the electricity output of solar panels.

Tunable Bandgap: Organic semiconductors with a tunable bandgap would be advantageous. The bandgap determines the range of light wavelengths that can be absorbed by the material. A tunable bandgap allows for optimization to match the solar spectrum, enabling better absorption of sunlight and improved overall efficiency.

Long Operational Lifetime: The organic semiconductors should be stable and exhibit a long operational lifetime. Solar panels are expected to endure outdoor conditions for many years, so the materials used should be resistant to degradation, such as from exposure to UV radiation or moisture.

Scalability and Low Cost: Manufacturers aim to produce organic semiconductors on a large scale at a low cost. Therefore, desirable organic semiconductors should be readily synthesized using cost-effective methods and be compatible with high-volume manufacturing processes.

Environmental Friendliness: Organic semiconductors that are environmentally friendly and have low toxicity are desirable. This is aligned with the goal of sustainable and clean energy technologies.

It is important to note that the field of organic semiconductor research is still evolving, and scientists are continually working to improve the performance and characteristics of these materials.

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Answer:

due to less proteins in a body

Answer:

During menstruation, the lining of the uterus (endometrium) is shed

Answer:

A.  The particles crossing the membrane do not have a charge.

D.  The movement across the membrane does not require added energy.

F.  The particles crossing the membrane could be water (H2O) or oxygen (O2).

Explanation:

A.  The particles crossing the membrane do not have a charge. - true, only small, uncharged particles can freely cross the cell membrane unassisted.

B.  The movement across the membrane requires energy from ATP. - false, the molecules are moving across the membrane by passive transport, via simple diffusion

C. The movement across the membrane requires energy from glucose. - false, the molecules are moving across the membrane by passive transport, via simple diffusion

D.  The movement across the membrane does not require added energy. - true, the molecules are moving across the membrane by passive transport, which does not require energy.

E.  The particles crossing the membrane could be proteins or carbohydrates. - false, the particles will be smaller than carbohydrates or proteins that can move by passive transport

F.  The particles crossing the membrane could be water (H2O) or oxygen (O2). - true, the particles are likely to be small, uncharged molecules such as water or oxygen

G. The particles crossing the membrane have a strong positive or negative charge - false, the particles are uncharged if they cross the membrane freely