worth 100 points
What are the four stages of citric acid cycle?
Answer:
The four stages: glycolysis, a transition reaction that forms acetyl coenzyme A, the citric acid (Krebs) cycle, and an electron transport chain and chemiosmosis.
Explanation:
Most cancers are assumed to arise through which of the following?
a. Errors in translation
b. The production of unbalanced gametes because of nondisjunction during meiosis.
c. Genetic or epigenetic changes in somatic cells
d. Delayed cell division during early embryogenesis
e. None of the above answers is correct.
Most cancers are assumed to arise through genetic or epigenetic changes in somatic cells.
Cancer refers to the proliferation of a group of cells that have undergone a series of alterations or mutations, causing them to grow uncontrollably and abnormally. Tumors, which may be cancerous or benign, are produced by such abnormal cells.The response to the question
Somatic cells are cells that are not involved in reproduction, meaning they are not eggs or sperm. The body's most frequent cell types include skin cells, liver cells, and muscle cells. Somatic cells have the same genetic material (DNA), but they differ in their epigenetic modifications, which are chemical changes that alter gene activity without altering the DNA sequence.
These epigenetic changes, such as DNA methylation or histone modification, might have a significant impact on gene expression and play a role in disease development, including cancer.
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Ariana is trying to complete her flashcards for an upcoming quiz on photosynthesis and cellular respiration. On the front of each card she has written the reactants, and on the back she is writing the products. Her photosynthesis card is complete, but she is missing the back of her cellular respiration card. She asks her teacher what infomation she is missing. Which statement explains where Ariana's teacher will direct her to for help? The teacher will direct her to the anaerobic respiration card because they have identical products. The teacher will direct her to the back of the photosynthesis card because the two processes are identical. The teacher will direct her to the front of the cellular respiration card because cellular respiration has the same products and reactants. The teacher will direct her to the front of the photosynthesis card because photosynthesis reactants are the products of cellular respiration.
Answer:
The teacher will direct her to the front of the photosynthesis card because photosynthesis reactants are the products of cellular respiration.
Explanation:
Cellular respiration is an aerobic process in which energy is released by breaking down glucose ( C6H12O6 ) and other molecules.
Photosynthesis is the process in which plants make their own food in the presence of sunlight by utilizing water (H2O) and carbon dioxide (CO2) and convert it into oxygen (O2) and glucose (C6H12O6 ).
equation of cellular respiration is: C6H12O6 (glucose) + 6O2 (oxygen) => 6CO2 (carbon dioxide) + 6H2O (water) + energy
equation of Photosynthesis: 6CO2 (carbon dioxide) + 6H2O (water) +energy => C6H12O6 (glucose) + 6O2 (oxygen)
Hence, cellular respiration is a reverse reaction of photosynthesis and the photosynthesis reactants are the products of cellular respiration.
an investigation into the link between the frequency of flossing and periodontal disease is called:
A correlational study is one that looks at the frequency of flossing and periodontal disease.
What is a correlational study?A correlational study is a type of research design in which the relationships between two or more variables are investigated. Correlational studies are non-experimental, which means that no variables are manipulated or controlled by the experimenter. A correlation is a relationship that exists between two variables. Correlations can be positive or negative, strong or weak. There are times when there is no correlation. A correlation study can produce three results: a positive correlation, a negative correlation, or no correlation. The correlation coefficient is a numerical value that researchers can use to present their findings.
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based on mendelian inheritance, would it be necessary to have both the genotype and phenotype for an organism when attempting to predict the inheritance pattern for a trait in offspring? a. no; knowing the genotype will indicate the phenotype. b. yes; individuals with different phenotypes often have the same genotype. c. yes; individuals with different genotypes often have the same phenotype. d. no; knowing the phenotype will indicate the genotype.
Yes, it would be necessary to have both the genotype and phenotype for an organism when attempting to predict the inheritance pattern for a trait in offspring because individuals with different genotypes often have the same phenotype, option C is right.
According to Mendel's laws of inheritance, he clearly said that use of two homozygous parents when crossed together will have off-springs of heterozygous gametes. These heterozygous off-springs will show the character which is dominant. When heterozygous off-springs mate together, they produce off-springs with both homozygous and heterozygous gametes.
However, the dominant characters will show itself up even if it is in homozygous or heterozygous form. Hence, it is not necessary that individuals with different genotypes also have different phenotypes also. For example: If T and t are dominant and recessive gametes respectively, then TT and Tt both will show up to be tall plants.
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What is the relationship between kinetic and potential energy of a falling object ?
Scientists estimate that there are more than 20 000 species of ants
There is an estimate of 20000 species of ant exist in the world.
What is species?
Species, in biology, classification comprising related organisms that share common characteristics and are capable of interbreeding. This biological species concept is widely used in biology and related fields of study.
Scientists estimate that there are more than 20,000 species of ants. The species range in size from 1 mm long to 38 mm long and live in most environments.
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What makes bone unique from other connective tissue?
Bone is made of matrix and it is unique from any other connective tissue because of it's strength.
Specialized connective tissue made up of cells, fibers, and pulverized material makes up bone. Its extracellular components are mineralized, which makes it significantly stronger and more stiff than other connective tissues. As a result, bone is perfectly adapted to carry out its most well-known function within the body, that of mechanical support.
Bone in the upper extremity acts as a structural support for the hand when it moves as a closed kinetic chain and as attachment points for muscles to create motion at specific bone-to-bone linkages. The latter enables the hand to move through space in opposition to gravity and other outside forces.
Bone must be rigid to resist deformation and flexible to absorb energy in order to perform its mechanical function.
Before examining frequent ailments and elements affecting the health of the bones in the upper extremities, the current article gives a general overview of the morphology and physiology of bone tissue.
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The field of study concerned with how the nervous system interacts with the immune system is known as?
The field of study concerned with how the nervous system interacts with the immune system is known as Psychoneuroimmunology.
What is the immune system?The immune system is the system that fights the invaders of the body. The system contains B and T cells. It fights or kills those germs or microorganisms that affect health.
Psychoneuroimmunology is a field that studies about the interaction between immune and CNS, and what this interaction contributes to psychiatric function and health.
Thus, the field of study is psychoneuroimmunology.
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Please Help!
ESSAY: How does a seismograph work?
(The essay needs to be 5 sentences)
Answer:
Seismographs record seismic waves. They contain a weight and a pen attached to a spring. The seismograph is bolted to the ground so during an earthquake it moves with the ground, whilst the weight and pen remain still. The pen moves across a rotating paper roll recording the seismic waves.
Hope this helped, have a good day
Mark noticed that neither of the oils he tested produced bubbles nor appeared to dissolve. Both vegetable oil and olive oil are commonly used in cooking. If Mark were to test other types of cooking oils, what results could he expect?
The behavior of different types of cooking oils, when tested for bubbles and dissolvability, depends on their chemical properties.
Cooking oils are made up of different types of fatty acids, which determine their chemical properties. Oils with higher levels of unsaturated fatty acids, such as vegetable and corn oil, are more likely to produce bubbles and appear to dissolve due to their lower viscosity and higher degree of reactivity with other substances.
On the other hand, oils that are high in saturated fats, such as coconut oil and palm oil, are more likely to be solid at room temperature and may not produce bubbles or dissolve in the same way as other oils. Understanding the properties of different types of cooking oils can help cooks choose the right oil for different recipes and cooking methods.
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For which of the following would a transmission electron microscope be the best type of microscope to use?Studying the structures of a live parameciumLooking at a thick piece of fruitSeeing animal tissue that is visible to the naked eyeViewing a cell's mitochondria in detail
Answer:
viewing a cells mithocondria in detail
Explanation:
A transmition electron microscope (TEM) is a microscope that can see up to two million times better than the naked eye, meaning the only right answer would be D "Viewing a cell's mitochondria in detail"
Answer:
D - viewing the cells mithocondria in detail
Explanation:
microscopes zoom in and give u a clearer pictrure
how many chromosomes will the resulting gametes have in each of the following cases?
Answer: there are five hundred and twenty one
Which is the correct sequence for the flow of energy in a food chain *?
The flow of energy in a food chain: Primary consumers receive energy from primary producers. The energy is then distributed to secondary and tertiary consumers from the primary consumers.
A food chain is a linear network of links in a food web starting from producer organisms and ending at an apex predator species, detritivores, or decomposer species. A food chain also shows how organisms are related to each other by the food they eat. Each level of a food chain represents a different trophic level.
Producers, primary consumers, secondary consumers, and decomposers make up an ecosystem's food chain. The grass is the primary producer here, and the insect is the primary consumer. A bird, a secondary consumer, consumes the insect, and a snake, a tertiary consumer, consumes the bird.
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Biologists refer to the number of chromosomes with an "#n". For example, 1n for one copy of chromosomes and 2n for two copies. How else can this be expressed?
Answer:
haploid/diploid
Explanation:
The number of chromosomes can also be expressed as haploid or diploid, instead of 1n for one copy and 2n for two copies.
The haploid number of chromosomes also refers to a copy of the chromosomes or half of the genome of organisms while the diploid number of chromosomes refers to the double or complete set of chromosomes in the genome of organisms.
So, in other words: n = haploid and 2n - diploid.
hey i would really appreciate if someone helps me out
1. Why should we care that the panthera tigris is going extinct? Explain how humans might be affected by the loss of the panthera tigris.
Answer: I believe tigers, also known as "Panthera tigris" are important to humans because they balance the ecosystem. When creatures go extinct they leave behind a scar that affects the ecosystem that is around them. Since Tigers are secondary consumers they control natural prey populations. The connection to the food web is very important and essential to keep this food web stable. Once something goes extinct it will cause the food web to shift and some primary producers will go out of control.
Explanation: Not sure if this helped at all this is just what I know about the food web. Panthera Tigris are secondry consumers so they control the primary producer population. This is just basic food web and ecosystem thinking. This is how they impact humans if they go extinct.
Why do plant cells become flaccid in concentrated sugar solution?
Answer:
It becomes flaccid because the concentrated sugar solution is a hypertonic solution and the water from inside the cell cytoplasm diffuses
Plant cells submerged in concentrated sugar solutions lose water by exosmosis, becoming flaccid (the reverse of turgid).
What is exosmosis?Cells use the passive diffusion process known as osmosis to move water molecules across their cell membranes.
A passive diffusion mechanism is osmosis. Endosmosis, which differs from exosmosis in that it moves water into the cell, and exosmosis, which moves water out of the cell.
When a cell is submerged in a hypertonic solution, exosmosis occurs, which is the flow of water outside the cells. The outer water flow causes the cell to become flaccid.
Plant cells submerged in a concentrated sugar solution, which has a low water concentration relative to its contents, will osmotically lose water.
They are believed to have been plasmolyzed when their cell membranes began to peeled away from their cell walls.
Thus, due to exosmosis, plant cells become flaccid in concentrated sugar solution.
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a
Which of the following might be affected by the loss of a plant species?
Only organisms that feed directly off the lost plant species will be affected
b. Other plant species will be affected, but no other organisms will.
Multiple organisms may be affected by the loss of a plant species.
d. No other organisms would be affected.
С.
Please select the best answer from the choices provided
А
B
Оооо
Answer:
Multiple organisms may be affected by the loss of a plant species
Explanation:
If a organisms food source were to vanish, it would affect the herbivores that feed on that plant, but also the carnivores/omnivores that feed on the herbivores. Because the herbivores will die as a result from not having food. This will also lead to the carnivores/omnivores to die.
Name of the element whose chemical symbol is Mg?
a
microgram
b
malorganite
c
magnesium
d
manganese
Answer: Magnesium is the correct answer
Select the correct answer.
George is a principal scientist in a research organization. He studies the cell culture and genetics of the plants, and he is trying to develop
technology that will improve plant production and solve other agriculture related concerns. Which branch of agricultural science is he studying?
A greenhouse technology
B. hydroponics
Caeroponics
D. biotechnology
E tissue culture
Answer:
D. Biotechnology
Explanation:
Biotechnology is the use of biological processes, living organisms, or biological systems to manufacture useful products in order to improve the quality of human life.
Biotechnology covers many disciplines such as genetic engineering, biochemistry, molecular biology, medicine, agriculture etc. In medicine, biotechnology has been applied in the development of medicines and therapies, etc. In agriculture, biotechnology is applied in the development of genetically modified plants, biofuels, biological treatment as well as to solve other agriculture-related issues. In the industries, through genetic engineering, simple cells and proteins has been engineered to produce useful chemicals such as drugs, hormones, etc.
Since George's studies involves cell culturing and genetics of plants in order to develop technology that will improve plant production and solve other agriculture-related problems, he is studying Biotechnology.
Question 2
Look at the offspring you created in your model. Have any of the offspring inherited a more beneficial genetic combination than the others? How could this affect their survival? Explain your reasoning.
Answer:
Yes.
Explanation:
Yes, More beneficial genetic combination of the offspring has a positive effect on the survival of that offspring because due to more good characteristics the organism is able to survive harsh environmental condition and increases its survival rate. So we can conclude that presence of more beneficial genetic combination in the offspring greatly affect its survival in the environment among other offspring.
what biome is characterized by alternating rainy and dry seasons and large herds of grazing animals that migrate in response to the seasons?
tropical dry forest, also called monsoon forest or tropical deciduous forest, biome of any open forest in tropical areas that have a long dry season followed by a heavy rainy season.
Found on all continents except Antarctica, the grassland biome is characterized by being flat and grassy, with little tree cover. Large grazing mammals, such as elephants or bison, inhabit these areas, along with small mammals, birds, and predators. The grassland biome is made up of large open areas of grasses. They are kept with grazing animals and frequent fires. Grassland types include savannas and temperate grasslands. If it rained all year, the savannahs would turn into tropical forests, full of trees and tall vegetation. For grasslands to survive, they need dry spells that prevent trees from taking over.
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What traits of a panda bear do not fit its niche ?
Explanation:
does this come for a story or is just a question?
hey could u answer these tru/false questions thanks
1.when we classify living organisms we can know how many species there are.
2.taxonomists do not create new groups to fit for the newly classified organisms
3.all the organisms on earth are discovered nowadays
thnak you
Answer:
1.true
2.false
3.false
If a cat normally has 38 chromosomes in its somatic (body) cells, how many chromosomes will be in its gametes? A. 19 B. 76 C. 38 D. None of these
The number of chromosomes in the gametes of the vat that normally has 38 chromosomes in its somatic cells is 19 chromosomes (option A).
What is meiosis?Meiosis is the cell division of a diploid cell into four haploid cells, which develop to produce gametes. The gametes possess half the number of chromosomes of the parent cell.
The somatic cells or body cells have a diploid number of chromosomes, however, when they undergo meiosis, they become haploid (one set of chromosomes).
For example, if a cat has 38 chromosomes in its somatic diploid (2n) cell, the number of chromosomes that will be present in the gametes produced as a result of meiosis will be 38/2 = 19 chromosomes.
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How do people perceive the illusion caused by the Penrose triangle?
According to the island equilibrium model, species richness would be lowest on an island that is _________. A. large and close to a mainland B. large and remote C. small and remote D. small and close to a mainland
According to the island equilibrium model, species richness would be lowest on an island that is large and remote
What is island ?A piece of land that is isolated and encircled by a very diverse habitat, such water, is referred to as an island (or isle). Very small islands, like emerging land features on atolls, are known as islets, skerries, cays, or keys.
A small island off the coast is referred to as a holm, while an island in a river or lake is referred to as an eyot or ait. In the delta of the Ganges are sedimentary islets called chars. The Philippines is an example of an archipelago, which is a group of geographically or physically connected islands.
Islands in the water can be classified as either oceanic or continental. Artificial islands constructed by humans are also present.
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A pushing force that can be calculated as force x
area is called ...
O Pressure
O Density
O Gravity
O Hydraulic force
O Newtonian
Answer:
Pressure :)))))))........
Label the diagram below.
Answer:
Cannot be answered. There is no diagram.
What is the anammox reaction, and when does it occur in the nitrogen cycle?
Anammox (anaerobic ammonium oxidation), which is a reaction that oxidises ammonium to di-nitrogen gas using nitrite as the electron acceptor under anoxic conditions, was an important discovery in the nitrogen cycle.
The nitrogen cycle's anammox reaction takes place when nitrogen compounds are converted back into atmospheric nitrogen gas during the denitrification phase.
Thus, In order to avoid the buildup of too much nitrogen (such as nitrates and nitrites) in the environment, which can result in water pollution and other ecological issues, denitrification is an essential phase in the nitrogen cycle.
Low oxygen conditions, such as sediments in wetlands, wastewater treatment facilities, and oxygen-depleted regions of oceans, are where anammox bacteria carry out the anammox process.
In the end, this process aids in maintaining the balance of nitrogen in ecosystems and preventing nitrogen pollution by naturally removing excess nitrogen molecules from these habitats.
Thus, The nitrogen cycle's anammox reaction takes place when nitrogen compounds are converted back into atmospheric nitrogen gas during the denitrification phase.
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