Prokaryotes are less complex than eukaryotes and lack a nucleus. They also contain a flagellum outside of their cell.
Where does the DNA of prokaryotes reside?
Prokaryotes have a nucleoid in the center of the cell that houses the DNA but is not protected by a nuclear membrane. In addition to chromosomal DNA, many prokaryotes also possess smaller, circular DNA molecules known as plasmids, which can provide genetic benefits in particular situations.
Do prokaryotic chromosomes exist?
Prokaryotic cells lack a membrane-bound nucleus, in contrast to eukaryotic cells. Instead, the nucleoid, a part of the cytoplasm, is where their genetic material is located. Typically, a prokaryotic cell contains just one circular, coiled chromosome.
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Biology please help grade 11th
Mutation may or may not affect the phenotype.
Cause: Point Mutation
Effect A: Altered Splice Site
Effect B: Lack of Regulation
Effect C: No Change
Effect D: Non-Coding Regions
Effect E: Premature Stop Codon
What is Mutation?
Mutation is the process of changing the genetic material of an organism. It is the basic process of evolution, and it can occur naturally or be artificially induced. Mutations can be beneficial, neutral, or harmful, and they can affect a single gene, multiple genes, or the entire genome.
A mutation can affect the phenotype, or visible characteristics, of an organism by changing the expression of a gene or by altering the structure of a gene product. Some mutations can have severe effects on an organism’s phenotype, while other mutations may have no noticeable effect. In some cases, a mutation may lead to a change in an organism’s phenotype without changing the underlying genetic code. For example, a mutation in a gene that regulates the expression of other genes may lead to a change in the expression of those other genes, resulting in a change to the phenotype.
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Identify the type of macromolecule (carbohydrate, lipid, nucleic acid,
protein) that changes when Glu changes to Asp. Explain your answer.
Answer: The type of macromolecule that changes when Glu changes to Asp is a protein.
Explanation: The type of macromolecule that changes when Glu changes to Asp is a protein. This is because proteins are made up of long chains of amino acids, which are the building blocks of proteins. Glu and Asp are both amino acids, and they can be incorporated into a protein chain during protein synthesis. When Glu changes to Asp, it means that one of the amino acids in the protein chain has been replaced by a different amino acid. This can potentially alter the structure and function of the protein, depending on the specific role that the amino acid plays within the protein.
Why are gametes the only haploid cells in your body?
Gametes are the only haploid cells in the human body because they are the cells involved in sexual reproduction, which requires the combination of one set of chromosomes from each parent to form a new individual. The rest of the cells in the human body are diploid and do not participate in sexual reproduction.
Gametes, which are also known as sex cells, are the only haploid cells in the human body because they are the cells that are involved in sexual reproduction. Haploid cells have a single set of chromosomes, while diploid cells, which make up the majority of cells in the human body, have two sets of chromosomes.
During sexual reproduction, gametes from each parent combine to form a new individual. The gametes from each parent contribute one set of chromosomes to the offspring, so that the resulting diploid cells in the offspring have two sets of chromosomes, one set from each parent.
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Answer:
Human gametes are haploid (n) as they are formed by meiosis during the process of gametogenesis.
Explanation:
Haploid can be described as a cell that contains a single set of chromosomes. The term haploid can also refer to the number of chromosomes in egg or sperm cells.
Haploid gametes lead to the fusion of male and female gametes, by which a diploid zygote is formed and the number of chromosomes remains the same in the progeny.
In humans, gametes are haploid cells that contain 23 chromosomes.
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Two objects are described below.
Thing 1: It has a mass measured by a pan balance.
Thing 2: It takes the shape of a container.
Which statement is true?
O Both objects are matter.
O Both objects are non-matter.
O The first object is matter, and the second object is non-matter.
The first object is non-matter, and the second object is matter.
Mass is measured by balance and weight is measured by balance.
Is mass measured by Pan balance?Two pans are located on either side of a lever in the pan balancing scale. To achieve balance and determine the weight of the other thing, weights are placed on one side of the object and on the other side. Typically, the mass is expressed in grammes or kilogrammes.
Because of its practicality and accuracy, comparative weighing is frequently used to compare two things' masses rather than their absolute values. When preparing reagents and stock solutions, a top pan balance is typically used for rough weighing because minor weight differences do not significantly affect the outcome of analysis.
Two pans are integrated into this particular laboratory scale on either side of a lever. It has two separate applications.
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When Thing 1: It has a mass measured by a pan balance. Thing 2: It takes the shape of a container. Then Both objects are matter statement is true.
What is Matter?Any substance with mass and which has volume is considered matter because it occupies space.
Properties of matter:Any characteristics that can be measured, such as an object's density, color, mass, volume, length, malleability, melting point, hardness, odor, temperature, and others, are considered to be part of its properties.Mass:A body's mass is an inherent quality. earlier before the discovery of the atom and particle physics, it was widely considered to be tied to the amount of matter in a physical body.To know more about Matter visit
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Part A
In the figure below, working from the inside out, what would be the order of components observed?
water, hydrophilic head, hydrophobic tail, hydrophobic tall, hydrophilic head, water hydrophobic tail, water, hydrophilic head, hydrophilic head, water, hydrophobic tail water, hydrophilic tail, hydrophobic head, hydrophobic head, hydrophilic tail, water water, hydrophobic tail, hydrophilic head, hydrophilic head, hydrophobic tail, water
Many bony fish species have a swim bladder: an air-filled organ that can inflate to help them float up in water or deflate to help them sink down. What can you infer about a species that lacks this organ?
A species that lack a swim bladder, a fish without buoyancy issues will often stay still and erect in the water.
What is a swim bladder?You will notice excessive fin movement if your fish are trying to keep upright or are swimming sideways or upside down as they attempt to float correctly.
Thus, we may draw the conclusion that the swim bladder's air capacity rises as the fish dives deeper.
You might be shocked to learn that the majority of bony fishes have a swim bladder, a particular organ that helps them with that.
Therefore, this is a gas-filled sac with a thin wall that is found inside a fish's body.
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approximately 90% of absorbed alcohol gets converted by processes in the ____
Answer:
The liver.
Explanation:
The liver converts the majority of the alcohol into a substance called acetaldehyde, which is then further broken down into acetic acid and other byproducts. This process of metabolizing alcohol is what helps to reduce the concentration of alcohol in the blood and eliminate it from the body
The incidence of cystic fibrosis, a recessive genetic disorder in the Caucasian population of United States, is 1 in every 2,500 individuals. Find the number of heterozygous carriers.
(p + q = 1, p2 + 2pq + q2 = 1)
A.
0.0392
B.
0.0254
C.
0.045
The number of heterozygous carriers for a recessive genetic disorder in the Caucasian population of United States is 0.0392, option A.
How to find heterozygous carriers?In genetics, heterozygous means having inherited different versions (alleles) of a genomic marker from each biological parent. As a result, a person who is heterozygous for a genomic marker has two distinct versions of that marker.
Using the formula p + q = 1, p2 + 2pq + q2 = 1,
The allele frequency, p² = 1/2500 = 0.0004
√p² = √0.0004
p = 0.02
substituting p in the formula p + q = 1,
0.02 + q = 1,
q = 1 - 0.02 = 0.98
Frequency of heterozygous individuals = 2pq
2(0.02 x 0.98) = 0.0392
With the application of Weinberg theorem, p2 + 2pq + q2 = 1, the frequency allele of heterozygous carriers is 0.0392.
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Types of power station is called a .......... power plant. What one word complete the sentences.
1. What is the primary function of the small intestines? (1 point)
A.uses mechanical digestion to break down food particles
B uses chemical digestion and absorbs nutrients the body needs
C carries food and nutrients throughout the body
D eliminates the waste the body does not need
A
Utilizes chemical digestion to assimilate nutrients for the body.
What are the small intestine's three purposes?The small intestine's main jobs are to digest food, absorb nutrients needed by the body, and eliminate unwanted substances. Additionally, it contributes to the immune system by serving as a barrier to the diverse flora that lives in the gut and preventing the entry of dangerous germs.
Does food undergo chemical breakdown in the small intestine?Most chemical digestion and nearly all absorption occur in the small intestine. Large food molecules are broken down chemically during chemical digestion into their component parts, which can subsequently be absorbed past the intestinal wall and into the bloodstream.
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Answer:
Explanation:
Answer is B uses chemical digestion and absorbs nutrients the body needs
What determines the shape of the active site?
The shape of the active site in a given enzyme is determined by the amino acid residues of the protein and the interaction between such amino acids and also molecules in the physiological conditions of the surrounding media.
What is the active site in a given enzyme protein?The active site in a given enzyme protein is the molecular domain in the enzyme that binds to the substrate in a chemical reaction in order to form the enzyme-substrate complex that will be converted into products. The shape of the active site in the protein enzyme also depends on the amino acids in the domain that binds to the substrate and also to the molecular interactions.
Therefore, with this data, we can see that the active site in a given enzyme protein is dependent on the amino acids in the protein and their interactions.
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Describe the structure of a fibrous joint and give an example of where this occurs in the body.
How easy do you think it is to change an area’s climate? Explain your reasoning in at least 3 sentences.
Answer:
I don't think it is easy to change an area's climate because it requires large-scale interventions that can take a long time to implement. Additionally, the climate is influenced by many factors, including the Earth's orbit, ocean currents, and the amount of greenhouse gases in the atmosphere. Finally, the climate is a complex system and it is difficult to predict how changes to one part of the system will affect the rest of it.
Explanation:
Question 12
_______receive messages from other neurons and_____send messages to other
neurons.
O Dendrites; axons
O Axons; soma
O Soma; glial cells
Axons; dendrites
Answer:
dendrites, axons
Explanation:
Dendrites receive messages from other neurons and axons send messages to other.
why are fat cells larger than red blood cells
AnswerLarger mammals don't typically have bigger cells; they just have more of them, is the typical response to the question of whether they are bigger in larger mammals than in smaller ones. For example, compare the liver cells of an elephant and a mouse.
Red blood cells, liver cells, and other cell types that often split and replace themselves are all around the same size; however, in large animals, permanent, long-lived cells like brain and fat cells are larger.
Explanation:
Fat cells, also known as adipocytes, are larger than red blood cells because they have different functions in the body. Red blood cells are responsible for carrying oxygen from the lungs to the body's tissues, while fat cells store energy in the form of fat.
Fat cells are much larger than red blood cells because they need to be able to store a large amount of fat. A single fat cell can contain up to 50,000 times more fat than a red blood cell. This allows the body to store a significant amount of energy that can be used during times of increased energy demand or when food is scarce.
Red blood cells, on the other hand, are much smaller because they need to be able to circulate throughout the body and fit through the small blood vessels. They have a flattened, disk-like shape and are only about 7-8 micrometers in diameter. This is much smaller than fat cells, which can be up to 100 micrometers in diameter.
Overall, the differences in size and function between fat cells and red blood cells reflect the different roles they play in the body.
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Properties of Ionic and Covalent Compounds
1. Research the properties of Ionic and Covalent compounds in terms of the following:
Transfer/Sharing of Electrons:
Structures/ Shapes of Molecules:
Hardness/Brittleness:
Electrical Conductivity:
Melting/Boiling Points:
Electronegativity & Polarity:
Octet Rule
1. Explain the Octet Rule and why elements tend to have to follow it?
2. What are the exceptions in the octet rule? Give example each exception in the octet rule.
Lewis Dot Structure
1. What is Lewis Dot and how to draw it?
2. Why we need to draw the Lewis structure of the compound?
VSEPR
1. What is VSEPR?
2. What is a lone pair? Give 3 compound with lone pairs
3. Identify and describe the molecular shapes. Give general formula without any lone pairs and examples.
4. Identify and describe the molecular shapes. Give general formula with any lone pairs and examples.
Properties of Ionic and Covalent Compounds are given below.
Transfer/Sharing of Electrons:
Ionic compounds involve the transfer of electrons from one atom to another. Covalent compounds involve the sharing of electrons between two atoms.
Structures/ Shapes of Molecules:
Ionic compounds tend to form crystalline structures, while covalent compounds tend to form more complex and varied structures.
Hardness/Brittleness:
Ionic compounds tend to be brittle and are not malleable, while covalent compounds tend to be softer and more malleable.
Electrical Conductivity:
Ionic compounds tend to be electrical conductors in their solid state, while covalent compounds tend to be electrical insulators.
Melting/Boiling Points:
Ionic compounds tend to have higher melting and boiling points than covalent compounds.
Electronegativity & Polarity:
Ionic compounds are basically more polar than covalent compounds due to the unequal sharing of electrons.
Octet Rule:
The octet rule states that atoms tend to form covalent bonds in order to achieve an electron configuration of eight electrons in their outermost energy level. This is due to the stability of the noble gas configuration. Exceptions to the octet rule include molecules with an odd number of electrons, molecules with more than eight electrons in the outer shell, and molecules with expanded octets. Examples of these exceptions include BF3, PCl5, and SF6.
Lewis Dot Structure:
A Lewis dot structure is a diagram that represents the outermost electrons of an atom. It is drawn by placing dots representing the electrons around the chemical symbol of the element. This diagram is used to determine the geometry of the molecule and to predict the type of bonds that can form between atoms.
VSEPR:
VSEPR stands for Valence Shell Electron Pair Repulsion. It is a model that predicts the geometry of a molecule based on the number of electron pairs present around the central atom. A lone pair is a pair of electrons not shared between two atoms and is represented by two dots in a Lewis dot structure. Examples of compounds with lone pairs include water (H2O), ammonia (NH3), and sulfur dioxide (SO2).
The molecular shapes without any lone pairs are linear, trigonal planar, tetrahedral, and trigonal bipyramidal. The general formula without any lone pairs is AXn, where n is the number of atoms bonded to the central atom. Examples include CO2 (linear), BF3 (trigonal planar), CH4 (tetrahedral), and PCl5 (trigonal bipyramidal).
The molecular shapes with lone pairs are bent, trigonal pyramidal, T-shaped, and square planar. The general formula with any lone pairs is AXnE, where n is the number of atoms bonded to the central atom and E is the number of lone pairs. Examples include H2O (bent), NH3 (trigonal pyramidal), IF3 (T-shaped), and XeF4 (square planar).
What is a Covalent bond?
A covalent bond is a type of chemical bond formed when two atoms share a pair of electrons. This type of bond is generally formed between two non-metallic atoms, such as two oxygen atoms, or between two different elements. Covalent bonds are strong, stable, and tend to form molecules.
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HELP LIMITED TIME!!!!!!!!!!!!!!!
Hydrogen fuel cells, biodiesel, and long-term electric batteries are
potential solutions to
Select one:
1, carbon sequestration
2, replacing coal as a major fuel for generating electricity
3, cap-and-trade emission control
4, reducing carbon emissions from cars and trucks
Answer: 4
Explanation:
According to cell theory, which are made of cells? Check all that apply.
Answer:
According to cell theory, all living organisms are made of cells. This includes:
Plants
Animals
Fungi
Protists (single-celled eukaryotic organisms)
Bacteria (single-celled prokaryotic organisms)
All of the above should be selected.
_BF3+_LiSO3 = _B2(SO3)3 + _LiF
What’s the answer if you balanced it
Chemical equations may only be balanced by changing the coefficients; subscripts cannot be changed. The ratios of the atoms in the molecule and the resulting chemical characteristics alter when subscripts are changed.
What are the parameter to balance the chemical equation?Place coefficients in front of symbols or formulas as necessary to balance chemical equations so that the same number of each type of atom appears in both reactants and products.
Therefore,To indicate the unknown coefficients, give the equation a variable name for each chemical (reactant or product).
[tex]\rm ABF_{3}+ bLiSO_{3} = CB{2}(SO{3}){3} + dLiF{2}[/tex]
[tex]\rm 2BF{3} + 3LiSO{3} = B{2}(SO{3}){3} + 3LiF{2}[/tex]
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I need the answers for 123
The cell membrane is a thin, semi-permeable barrier that surrounds the cytoplasm of a cell.
1) There are two of movement across the cell membrane.
2) Diffusion refers to the movement of molecules randomly, the use of energy.
3) Active diffusion refers to the movement of molecules that dash the use of energy.
Explain Diffusion.
Diffusion is the process of molecules moving from an area of higher concentration to an area of lower concentration. This process occurs naturally and does not require the use of energy. Active diffusion, on the other hand, is the process of molecules moving from an area of higher concentration to an area of lower concentration, but it requires the use of energy. Active diffusion is usually facilitated by proteins embedded in the cell membrane that act as transporters. These transporters use energy to move molecules across the membrane, either into or out of the cell.
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Match each stage of demographic transition with its correct description. (3 points)
a. High birthrates, high infant mortality rate, no health services or family planning options
b. High birthrates, decline in deathrates, increased health services but limited family planning options
c. Low birthrates, low deathrates, higher quality of health services and family planning options
here's the CORRECT answer
Stage 1 A
Stage 2 B
Stage 3 C
The stage of demographic transition with its correct description include the following below:
Stage 1 - High birthrates, high infant mortality rate, no health services or family planning options which is denoted as option AStage 2 - High birthrates, decline in death rates, increased health services but limited family planning options which is denoted as option B.Stage 3 - Low birthrates, low death rates, higher quality of health services and family planning options which is denoted as option C.What is Demographic?This is a term which is used to describe the statistical characteristics of human populations such as age or gender and is also used especially to identify different types of markets.
In the chart we can see that the birth rate was falling in stage 3 mwhich means that there are family planning options which is adopted hence such result.
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Match the type of tectonic plate boundary to the geological feature or effect it is commonly associated with them.
Although it is an underground formation, It is the longest mountain range in the world = Oceanic-oceanic divergence.
he Himalayas lie between the Indo-Gangetic Plain of northern India and the Tibetan Plateau = Continental- continetal convergence.
he Himalayas lie between the Indo-Gangetic Plain of northern India and the Tibetan Plateau = Continental- continetal convergence.
What is continental?Continental creates ground-breaking products and services for the connected, sustainable movement of people and their goods. The technology business, which was established in 1871, provides safe, effective, intelligent, and reasonably priced solutions for machines, traffic, and transportation. Any of the numerous large landmasses is a continent. Rather than using any strict criteria, continents are typically identified by convention.
Because of this, there are typically seven or as few as four geographical regions considered to be continents. Continental creates ground-breaking products and services for the connected, sustainable movement of people and their goods. (usually with the first letter capitalized) of or pertaining to the European continent, to Europeans, or to European practices and values.
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what are herbivorous plants?
Answer:
What is herbivory?
Herbivory is the act of eating plants. Herbivory occurs above and below ground. Herbivores may eat any part of the plant above the soil including leaves, stems, flowers, fruit and any part of the plant below the soil including roots and tubers.
What are herbivores plants?
Plants that are parasites can still be considered herbivores. A parasite is an organism that lives on or in another organism and gets its nutrients from it. Parasitic plants get their nutrients from other plants, called host plants.
you are in the year where the earth has no more land available for houses you decide to build an apartment up and need things to survive in each earths 5 layers (troposphere,stratosphere, mesosphere, thermosphere, exosphere) Question: what things would you need to survive the stratosphere (starts cold and ends hot)
Answer:
To survive in the stratosphere, you would need a space suit with a pressurized environment, oxygen tanks, a heat source, and a cooling system. You would also need a means of propulsion, such as a rocket or jetpack, to move around. In addition, you would need a way to communicate with other people on the ground or in other parts of the stratosphere. Finally, you would need a way to protect yourself from the extreme temperatures and radiation in the stratosphere.
Explanation:
A forest has not experienced any severe weather changes for several years. The ecosystem supports a stable population of deer. What is the most likely reason for this stability?
Answer:
The most likely reason for this stability is that the forest has remained relatively unchanged for several years, which allows the deer population to stabilize
Which of the following does not indicate velocity?
A. 14 feet per second per second
C. 80 miles per hour towards New York
B. 40 miles per hour towards town
D. 28 miles per second towards Ohio
Answer:
A. 14 feet per second per second does not indicate velocity.
Explanation:
Velocity has formula of displacement over time. Displacement can have unit such as mile, meter, kilometer, etc while time can have unit such as second, hour, minute, etc.
With division rule of term, we would have unit of measurement over unit of time, thus velocity only have one-degree term (no power term).
Unlike acceleration, acceleration has square term in time unit because acceleration is change in velocity over time. Velocity has unit of measurement over unit of time, with these units dividing another unit of time, we have:
[tex] \displaystyle{ \dfrac{ \text{measurement}}{ \text{time}} \div \text{time} = \dfrac{ \text{measurement}}{ \text{time}} \times \dfrac{1} {\text{time} } \to \dfrac{ \text{measurement}}{ \text{time}^{2} }}[/tex]
Hence, acceleration would have time² unit while velocity only has time¹ unit.
And as seen in the choices, only unit that appears as time² is A choice as feet per second per second means (feet/second)/second = feet/sec² and this is acceleration, not velocity.
the blank determines which traits are adaptive during the process of natural selection
The environment determines which traits are adaptive during the process of natural selection.
What is natural selection?Natural selection is the process by which certain traits become more or less common in a population over time based on their effect on the survival and reproduction of the individuals that possess them. The individuals with traits that are better suited to their environment are more likely to survive and reproduce, passing those traits on to their offspring. Over time, this can lead to the evolution of species, as certain traits become more common in the population.
Natural selection is one of the main mechanisms of evolution and is often referred to as "survival of the fittest," although the term "fitness" in this context refers to how well an organism can survive and reproduce in its specific environment, rather than its physical strength or athleticism. Charles Darwin and Alfred Russel Wallace were the first to propose the theory of natural selection, it's based on observations of natural variation within populations, heritability of traits and the fact that more individuals are born than can survive to reproduce.
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Genetics have observed that fruit flies that commonly inherit vestigial wing’s also lobed eyes. Observations such as this have helped to develop the genetic concept known as?
PLEASE I NEES THIS TODAY WILL GIVE THANKS AND BRAINLIEST
Answer:
The wave are following the oscillate wave
Explanation:
Lesson Question:How can the presence of
one species benefit another in the same
ecosystem?
Check all correct elements below that you
included in your question.
independent variable: presence of one
species (here, worms)
dependent variable: effect on another
species (here, lima bean plants)
relationship: benefit
DONE
Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.
How can the presence of one species in the same ecosystem assist another?A mutualism occurs when two species have a long-term relationship that benefits both of them (+/+ interaction). Some fungi, for example, create mutualistic relationships with plant roots. The plant may photosynthesize and gives fixed carbon to the fungus in the form of sugars and other organic compounds.
The presence of several species in an ecosystem balances it. The species in an ecosystem interact with one another in some way. For example, the existence of a plant species will offer food for the numerous herbivores found in an ecosystem. A predator may consume a variety of prey. As a result, the existence of diverse prey reduces the likelihood of a species becoming extinct in the ecosystem. As a result, all creatures in an ecosystem are dependent on one another in some way.
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