Of the total solar energy that reaches the earth, ------ percent is captured by the cells of photosynthetic organisms.

Answer:

False

Explanation:

Carbon-Based Fuels Dominate Global Energy Use

Crude oil, coal, and natural gas supply about 85% of the energy used in the world.

Answer:

Bauxite itself is a rock, not a mineral.

Explanation:

It is used in the United States in packaging, transportation, and building. Because it is a mixture of minerals.

Answer:

c

Explanation:

Answer: yes I agree with c

Explanation:

Movable-type printing was the invention in the 1400’s revolutionized the way knowledge could be spread.

This type of printing involves the use of movable components to reproduce elements and letters on paper.

This was adopted by churches through printing of bible and other religious materials and led to the protestant reformation in the 1400s

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Answer:

Y is cellular respiration.

X is carbon dioxide.

Explanation:

Hope this helps! :)

Answer:

Cellular Respiration - Option 5

Explanation:

The animals take in the oxygen produced by plants and make ATP. When ATP is created, carbon dioxide is produced. Plants take in carbon dioxide and do photosynthesis thus producing oxygen again. It is a cycle. The answer is cellular respiration a.k.a cell respiration.

A specimen should be protected from light for the determination of bilirubin concentration.The bilirubin molecule is extremely delicate and is susceptible to photodegradation. When the specimen is exposed to light, it rapidly breaks down and loses its ability to bind to the reagents used in the test.

For this reason, bilirubin tests should be kept in a dark place from the time the specimen is obtained until the time it is analyzed. When bilirubin is exposed to light, it becomes oxidized and loses its ability to react with diazo reagents, which are used in bilirubin assays. This causes the results of the test to be artificially low, as the oxidized bilirubin is no longer able to react with the diazo reagents.

Bilirubin is a yellowish substance formed during the breakdown of red blood cells in the liver. High levels of bilirubin in the blood can indicate liver disease, hemolytic anemia, or other health problems. A bilirubin test is used to measure the amount of bilirubin in the blood. When obtaining a specimen for bilirubin testing, it is essential to protect the specimen from light. This can be done by wrapping the specimen container in foil or by keeping it in a dark container. The specimen should be kept in the dark until it is analyzed, as exposure to light can cause photodegradation of bilirubin, which can lead to inaccurate test results.

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Answer:

platypus

Explanation:

The photosynthesis-inverse principle describes how fructose 2,6-bisphosphate suppresses photosynthesis by competing with CO2 for binding to RuBisCO, causing the concentration of fructose 2,6-bisphosphate to vary inversely with the rate of photosynthesis in plant cells. Here option A is the correct answer.

Fructose 2,6-bisphosphate (F2,6BP) is a regulatory molecule that plays a key role in the regulation of the enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) in plant cells. RuBisCO is responsible for the fixation of carbon dioxide during the process of photosynthesis, and its activity is regulated by the concentration of F2,6BP.

The concentration of F2,6BP varies inversely with the rate of photosynthesis in plant cells because F2,6BP is produced from the breakdown of glucose-6-phosphate, which is formed during the light-independent reactions of photosynthesis (also known as the Calvin cycle). When the rate of photosynthesis is high, more glucose-6-phosphate is produced, leading to an increase in the concentration of F2,6BP. This increase in F2,6BP concentration, in turn, inhibits the activity of RuBisCO and reduces the rate of photosynthesis.

The relationship between F2,6BP concentration and the rate of photosynthesis in plant cells is known as the photosynthesis-inverse principle. This principle describes the negative feedback loop that regulates the activity of RuBisCO and ensures that the rate of photosynthesis is balanced with the energy requirements of the cell.

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Complete question:

Why does the concentration of fructose 2,6-bisphosphate vary inversely with the rate of photosynthesis in plant cells, and what is the name of this relationship?

A) The relationship is called the photosynthesis-inverse principle, and fructose 2,6-bisphosphate inhibits photosynthesis by competing with CO2 for binding to RuBisCO.

B) The relationship is called the photorespiration-inverse principle, and fructose 2,6-bisphosphate is an essential component of the photorespiration process in plant cells.

C) The relationship is called the Calvin cycle-inverse principle, and fructose 2,6-bisphosphate is a regulatory molecule that inhibits the Calvin cycle in the presence of excess glucose.

D) The relationship is called the light-dependent reaction-inverse principle, and fructose 2,6-bisphosphate is a regulatory molecule that inhibits the light-dependent reaction when there is insufficient light energy.

Carbon dioxide, CO₂, is present in the atmosphere as a gas and is required by plants for photosynthesis occurring in the leaf whereas minerals like phosphate and nitrogen are present in the soil.

Plants have various parts that function to help the plant survive such as leaves, roots, and stems.

The functions of the parts of the plant are as follows:

Considering the given questions:

a. CO₂ exists in the atmosphere as part of the air; True. Sentence 2

b. Phosphorus is a gas plants need to survive; False. Sentence 3

c. Carbon dioxide is a mineral; False. Sentence 3

d. The only function of roots is to anchor a plant; False. Sentences 8 and 9.

2. The most likely meaning of anchor as used in sentence 9 is hold down; option B.

3. A plant would die if some of its structures failed to

function. Sentence 5.

4. The likely meaning of elevate as it is used in sentence 13 is to make higher; option D.

5. A good reason to elevate a plant is for it to obtain nutrients above the ground.

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The "Christmas tree" pattern of transcription refers to the branching structure of the RNA molecule as it is being synthesized from the DNA template strand.

As RNA polymerase moves along the DNA strand, it adds nucleotides to the growing RNA molecule in a linear fashion. However, due to the presence of certain sequences and structures within the DNA template, the RNA molecule may fold back on itself, creating loops and branches that resemble the branches of a Christmas tree. This folding and branching occurs because the RNA molecule is able to base-pair with itself, forming stable secondary structures that influence its shape. The specific sequences and structures that lead to the Christmas tree pattern occurring depend on the type of RNA being transcribed and the location within the DNA sequence.

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Answer:

the answer would be magnesium and oxygen

Explanation:

hope this help

Answer:

thw answer is magnesium and oxygen

The process of moving viruses up the axon in the anterograde direction is known as anterograde transport, and it makes use of the protein kinesin.

The complete question is,

Occasionally, the cell body of a typical multipolar neuron degenerates after the axon is severed. Degeneration is the term used for this.

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The alligator would need approximately 17.5 hours to warm up to a more favorable temperature of 30 ∘C, assuming that the heat energy is transferred to it at a constant rate of 1000 W.

Assuming that the alligator's initial temperature is lower than the desired temperature of 30 ∘C, we can calculate the time required for the alligator to warm up using the formula:

Q = mcΔT

Where Q is the heat energy required to warm up the alligator, m is its mass, c is its specific heat capacity, and ΔT is the change in temperature.

We can assume that the mass of the alligator is 500 kg, and the specific heat capacity of its body is 3.5 kJ/kg⋅K, which is similar to the specific heat capacity of mammalian bodies. If the initial temperature of the alligator is 20 ∘C and the desired temperature is 30 ∘C, then the change in temperature, ΔT, is:

ΔT = 30 ∘C - 20 ∘C = 10 ∘C

Q = (500 kg) × (3.5 kJ/kg⋅K) × (10 ∘C) = 17,500 kJ

Assuming that the heat energy is transferred to the alligator at a rate of 1000 W, we can calculate the time required using the formula:

t = Q ÷ P

Where t is the time, Q is the heat energy required, and P is the power.

t = 17,500 kJ ÷ 1000 W = 17.5 hours

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Answer:

Answer:, 2 daughter cells, 10 chromosomes each

Because to anthropogenic coal mining, the once-heavily wooded Black Forest in Germany suffered extensive deforestation throughout the 20th century.

Coal mining is the method of getting anthracite extracted from the surface. The high energy content of coal has made it a popular fuel for power production since the 1880s. In the steel and cement sectors, cement manufacturing uses coal as a fuel, as does the iron-ore mining process.

The three main types of surface coal mining are strip mining, mountaintop removal (MTR), and open-pit mining.

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Answer:

An insertion, as related to genomics, is a type of mutation that involves the addition of one or more nucleotides into a segment of DNA. An insertion can involve the addition of any number of nucleotides, from a single nucleotide to an entire piece of a chromosome.

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Answer: b, d.

Explanation:

b. The bacterial sacculus is composed of peptidoglycan, which is a polymer made up of sugars and amino acids. It forms a mesh-like structure that surrounds the cell and provides strength and stability to the cell.

d. The bacterial sacculus provides protection from osmotic rupture by helping to regulate the pressure inside the cell and maintain the appropriate osmotic balance between the inside and outside of the cell.

The other statements are not entirely true:

a. The assembly of peptidoglycan and cross-linking reactions can occur both inside and outside the cell.

c. The bacterial sacculus is commonly referred to as the cell wall, although it is not the only component of the cell wall.

e. The bacterial sacculus is semi-permeable and allows some polar or charged molecules to pass through, but not all.

Dams preserve water, generate power, cause mass migration, and are expensive. Dams regulate water supply for domestic, industrial, and electric uses.

A dam is a structure that stops or slows the flow of water on the surface or in the ground.

Advantages of building a dam are:

Disadvantages are:

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The possible limiting factor is the devastation by the pine bark beetle.

A limiting factor is any factor that affects the size of a population of organisms which inhibits their growth or even existence.

The possible limiting factor of population of lodgepole pines is the devastation by the pine bark beetle.

This is so because only a section of the population was affected and not the whole.

If it was the Colorado’s long history of acidic soils, genetic variability and shallow root system, the whole population of lodgepole pines would have been affected.

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Answer:

a. devastation by the pine bark beetle

Explanation:

Answer:

True.

Explanation:

Yes, the number of heavy storms has increased due to global warming because of the holding power of moisture by the atmosphere due to higher temperature. When the air is warmed, the air can hold more water at that temperature so due to more holding power of moisture by the air the number of storms increases. One NASA study supports that global warming is causing the increase in number of extreme storms especially in the tropical ocean.

Voters can quickly and accurately learn to use the system. The one that describes digital transmissions and not analog transmissions is 1s and 0s. The correct options are b and b respectively.

The movement of data from one digital device to another is known as data transmission. Through point-to-point data streams or channels, this transmission is carried out.

Signals containing information often come in the form of analogue and digital signals.

The primary distinction between the two signals is that analogue signals have continuously varying electrical signals, but digital signals do not.

Because digital transmission signals in bits, a digital signal transmits data in binary form.

These signals can be broken down into harmonic sine waves, sometimes known as sine waves. Like an analogue signal, every digital signal contains amplitude, frequency, and phase.

Thus, the correct options are b and b respectively.

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Answer:

75% brown, 25% white

Explanation:

This question involves a single gene coding for color in chickens. The allele for brown color (B) is dominant over the allele for white color (b).

According to this question, a brown rooter with genotype 'BB' was crossed with a white hen (bb). The offsprings in the F1 generation will all possess the 'Bb' genotype and be brown colored. However, if these F1 offsprings are self-mated i.e Bb × Bb, the proportion of F2 offsprings will be 1BB, 2Bb, 1bb.

Since BB, Bb and Bb offsprings are Brown in color and bb is white in color, this means that the expected phenotypic appearance of the F2 offsprings will be:

¾ or 75% brown and ¼ or 25% white

The following three results are possible if a mutation in the gene that codes for the G subunit causes it to lose its GTPase activity:

3. The signaling pathway could be activated for an extended period, possibly resulting in undesirable cell proliferation.

4. The concentration of cAMP in the cell would be continuously elevated.

6. Gα would be activated for an extended period.

The hydrolase enzymes known as GTPases attach to the nucleotide guanosine triphosphate (GTP) and hydrolyze it to produce guanosine diphosphate (GDP). The highly conserved P-loop "G domain," a protein region shared by numerous GTPases, is where GTP is bound and hydrolyzed.

The components of the Gα subunit include Gs, Gi, Gq/11, and G12/13. Adenylyl cyclase activity is regulated by the Gs and Gi families, whilst the Gq family promotes PLC-, and the G12/13 family can activate small GTPase families. The signaling pathway could be active for a long time, which could lead to unfavorable cell growth. The amount of cAMP in the cell would constantly increase. G would be turned on for a long time.

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Question correction:

Which of the following outcomes could potentially result if a mutation in the gene encoding the G? subunit eliminates its GTPase activity? Choose three outcomes.

1. The cell would be unresponsive to molecules that act via cAMP.

2. The rate of GTP hydrolysis would increase.

3. The signaling pathway could be activated for an extended period, possibly resulting in undesirable cell proliferation.

4. The concentration of cAMP in the cell would be continuously elevated.

5. G would be ineffective as a signal molecule (that is, it could not activate other proteins).

6. G would be activated for an extended period.

The untreated sewage discharged by cruise ships is Blackwater. So, the correct option is A.

Untreated sewage discharge may be defined as sewage that has not passed through a treatment system. This is the sewage that is directly discharged from a toilet into a waterway.

Blackwater refers to any waste from toilets or urinals which is directly discharged into the waterway without any treatment. It is the major cause of water pollution as well.

Therefore, the untreated sewage discharged by cruise ships is Blackwater.

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With the given developmental model of the human embryo, we can determine that it has a postanal tail and it's a vertebrate. Therefore, option A as well as option B is correct.

A human embryo is a stage in the development of a human being that begins after fertilization and lasts until about eight weeks of gestation.

During this time, the fertilized egg divides itself and grows into a ball of cells that eventually implants itself into the uterus. The cells then differentiate and forms various structure and organs that make up a developing fetus.

The postanal tail is defined as the muscular region of the body that extends to the posterior region of the anus and aids in the locomotion and balance of the body.

As given in the question itself that the model is of the human embryo and since humans are vertebrates because they have a backbone and a skeletonized body. Hence, the correct option is A as well as B.

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