Answer:
Charles Darwin had a theory that states that evolution happens by natural selection. Individuals in a species show variation in physical characteristics. ... As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.
The theory of natural selection was proposed by Charles Darwin. Darwin postulated that species could change over time.
What is the theory of natural selection?The adaption by organism according to the surrounding environment is natural selection. It drives evolution.
Individuals in a population vary naturally. It means they are all different in some ways.
This variation means that some individuals have traits that suit better to the environment as compared than others.
This causes the species to change over time.
Thus, the process by which these changes take place is natural selection.
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Why are all food service workers required to understand and apply food safety knowledge?
Select one:
a. To prepare the best tasting food possible.
b. To prevent the spread of illnesses through food.
c. To reduce customer injury such as cuts and burns.
d. To reduce the amount of food thrown away due to spoilage.
Answer:
B.
Explanation:
Keeping and understanding food safety knowlege prevents the consumer from getting sick.
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Currently, Americans rely heavily on the burning of fossil fuels as sources of energy. As a result of increased demand for energy sources, there is a continuing effort to find alternatives to burning fossil fuels. STATE ONE ENERGY SOURCE THAT IS AN ALTERNATIVE TO USING FOSSIL FUELS?
One alternative energy source to using fossil fuels is solar energy. Solar power harnesses the energy from sunlight and converts it into electricity using photovoltaic (PV) panels or solar thermal systems. Solar energy offers several advantages as a sustainable and renewable source of power.
Firstly, solar energy is abundant and widely available. The sun's energy is a virtually limitless resource, making it an attractive alternative to finite fossil fuel reserves. Additionally, solar energy is clean and emits minimal greenhouse gases, contributing to reduced carbon emissions and mitigating the impact of climate change.
Moreover, solar energy systems have a long lifespan and require minimal maintenance, making them a cost-effective solution in the long run. The installation of solar panels on residential, commercial, and utility-scale buildings has been rapidly increasing, driven by technological advancements, decreasing costs, and government incentives.
By transitioning to solar energy, societies can reduce their dependence on fossil fuels, decrease environmental pollution, and work towards achieving a more sustainable and greener future.
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What’s the use of short tandem repeat?
Answer: Ok So A short tandem repeat is a microsatellite with repeat units that are 2 to 7 base pairs in length, with the number of repeats varying among individuals, making STRs effective for human identification purposes.STRs are extremely useful in applications such as the construction of genetic maps (49), gene location, genetic linkage analysis, identification of individuals, paternity testing, as well as disease diagnosis 50., 51.. STR analysis has also been employed in population genetics.
Hope this helps have a awesome night/day❤️✨Explanation:
Which statements are true about molecules?
Select all that apply.
A) They are a group of atoms that are strongly joined.
B) They always contain different types of atoms.
C) They are the smallest unit of an element or a compound.
D) They always contain only one type of atom.
The statements that are true about molecules are:
They are a group of atoms that are strongly joined.They are the smallest unit of an element or a compound.WHAT IS A MOLECULE?
A molecule is a substance that consists of two or more atoms linked together by a chemical bond, usually covalent bond. A molecule can also be referred to as the smallest unit of a pure substance (element or compound) that retains the chemical properties of such pure substance.HOW CAN A MOLECULE BE FORMED:
Molecules can either be made up of atoms of same kind e.g two atoms of the same element coming together. E.g. oxygen gas (O2), hydrogen gas (H2), chlorine gas (Cl2)Molecules can also be formed when two or more atoms of different kinds come together e.g CO2, H2O etc.Therefore, the following statements about molecules are true:
They are a group of atoms that are strongly joined.
They are the smallest unit of an element or a compound.
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Describe how the flow of water changes the temperature at the beach ?
Answer: well ya see the thing about that is..........
Explanation:
that the sea is water and water is
Select the two true statements about natural selection.
Only variations that help individuals avoid predators can become more
common through natural selection.
The result of natural selection in a population depends on the population's
environment.
Natural selection causes advantageous variations to become more
common over many generations.
Natural selection can cause an individual to gain new advantageous
variations during its life
The result of natural selection in a population depends on the population's environment and Natural selection causes advantageous variations to become more common over many generations are true statements about the process of natural selection (options 2 and 3).
What is the process of natural selection?The process of natural selection is an evolutionary mechanism associated with the differential survival and reproduction of the most adaptive phenotypes in a given environment.
Therefore, with this data, we can see that the process of natural selection leads to a change in gene allele frequency due to differential reproduction.
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Otto von Bismarck managed to reunify Germany by focusing the country's interests
and economies on what idea?
A. Pacifism
B. Militarism
C. Capitalism
D. Communism
He unified the Germany by focusing the country's interest on militarism
Otto Von BismarckOtto Von Bismarck was the Prussian prime minister between 1867 - 1890.
He shaped Prussia to be the main heart of Germany at that time such that he made them go into wars to conquer lands and territories.
During the beginning of his rule, he was conservative in a manner that avoided a major war with Austria at the time. He made a statement against the parliament then and managed to convince the king at the time that Prussia was not ready for war which was the truth. He went further to make a complete overhaul in the Prussia military such that they went to several wars and conquered territories. He was a smart and logical leader and knew the best time to go to war and also avoid it. Towards the end of his rule, he tried to ensure peace all over Europe to the surprise of everyone. Some of his greatest speeches are
All treaties between states cease to exist when they come in conflict of survivalNever believe anything in politics until it has been officially deniedThe greatest question of the day will not be settled by means of speeches and majority decisions but by iron and blood.Learn more on Otto Von Bismarck here;
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Estimate the amount of peroxidase in one gram of the vegetable that was used as starting material for preparation of the extract.
The amount of peroxidase in one gram of the vegetable can not be without additional information. However, ELISA technique is used for the peroxidase estimation.
Thus, the peroxidase content in a vegetable varies on factors such as the species of the vegetable, the part of the vegetable used for extraction, and extraction method. However, the activity of peroxidase can be affected by various factors, such as temperature, pH, etc. that can complicate the estimation of peroxidase content.
The amount of peroxidase in a vegetable extract can be estimated by enzyme-linked immunosorbent assay (ELISA) technique using a known quantity of purified peroxidase as standard, thereby, providing an estimate of the peroxidase content in the vegetable extract.
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A genetic experiment with peas resulted in one sample of offspring that consisted of:________
Answer:
439 green peas and 166 yellow peas for your answer
Can you please explain more about vegetation and soil
Vegetation plays an important part in the formation of soils from solid rock. The acids released by the roots of some plants act to breakdown the rock on which the soil is forming. The vegetation on a soil is particularly important in supplying the soil with precious organic matter.
Soil composition is determined by annual precipitation, average temperatures, and chemical composition. Certain types of vegetation grow only in soils that can support them.
Which of these planets has characteristics most similar to Saturn?
Jupiter, Uranus, and Neptune
Mercury, Venus, and Earth
O Venus, Earth, and Mars
Earth, Mars, and Saturn
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i can't understand your question can you explain it please
The expected genotypes of the offspring of a cross between a male and a female are shown. 50% homozygous dominant (BB) 0% homozygous recessive (bb) 50% heterozygous (Bb) What is the genotype of the parents if allele B is dominant over allele b? A The genotype of one parent is BB, and the genotype of the other parent is bb. B The genotype of both parents is BB. The genotype of both parents is Bb. The genotype of one parent is BB, and the genotype of the other parent is Bb.
B The genotype of both parents is BB. The genotype of both parents is Bb The expected genotypes of the offspring of a cross between a male and a female are shown. 50% homozygous dominant 0% homozygous recessive (bb) 50% heterozygous
Which genotypes are feasible in the progeny of a homozygous A-positive male and a B-positive female?Due to the homozygous alleles (IAIA and IBIB) present in both parents, the genotype of the offspring upon crossing would be a heterozygote of the type IAIB, manifested as AB blood type.
All of the progeny will be heterozygous for the trait when true-breeding, or homozygous, individuals that differ for it are crossed. The F1 children will all have the same phenotype as the parent homozygous for the dominant trait if the characteristics are inherited as dominant and recessive.
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The question as shown in the photo
Answer:
its the first one
Explanation:
xWhich statement best describes diffusion?
A.
Diffusion requires the cell to use energy.
B.
Diffusion is an example of active transport.
C.
Diffusion occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated.
D.
Diffusion occurs when particles spread from areas where they are more concentrated to areas where they are less concentrated.
Answer: Diffusion is the spread of particles from where they are more concentrated to where they are less concentrated
Explanation: When particles(solute) move from their higher concentration to their lower concentration it is called diffusion.
Diffusion is a passive process hence it does not require energy. It only requires a concentration gradient of particles to be present as it occurs along the concentration gradient.
diffusion stabilizes the number, movement & energy of solution on all sides.
14. Which words from the passage show the author's bias toward monarch butterflies? A "Eventually, monarchs reach homes as far north as Canada." B "Most monarch butterflies never live more than two months." c "These beautiful creatures are amazing to watch..." D "They beat their wings slowly and glide so they do not tire too easily."
Answer: C: "These beautiful creatures are amazing to watch."
Explanation: Bias is where an author adds their personal opinion on a topic such as this one on monarch butterflies. Sometimes, authors use bias and it gets away from the facts and the credibility that the topic should bring. In option C, the words "beautiful" and "amazing to watch" steers the reader away from the actual topic with their personal opinions. The other options from the passage include facts about the monarch butterflies and resisting the urge to add comments about how beautiful or interesting they are.
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Categorize these pieces of evidence as either observation you could directly observe or as evidence that would require you to rely more n the observation of other such as scientist or information in textbook type the number of each piece of evidence (1-12) in the appropriate column of the table
In order to categorize the pieces of evidence as either direct observations or evidence requiring reliance on scientists or information in textbooks, we need to examine each piece individually. The table below will display the categorization of the evidence, assigning numbers 1-12 to each piece.
1. Review each piece of evidence.
2. Determine if the evidence can be directly observed or if it requires reliance on scientists or information in textbooks.
3. Assign the numbers 1-12 to each piece of evidence in the appropriate column of the table.
4. For evidence that can be directly observed, mark it under the "Direct Observation" column.
5. For evidence that requires reliance on scientists or information in textbooks, mark it under the "Reliance on Scientists/Textbooks" column.
6. Repeat this process for all 12 pieces of evidence.
7. Ensure that each piece of evidence is accurately categorized in the table.
8. Double-check the categorization to ensure accuracy.
9. Verify that all pieces of evidence have been accounted for in the table.
10. Review the table and confirm the final categorization of each piece of evidence.
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Please help me asap?!!!!
Explanation:
#1 is the correct answer
The diffusion spot diameter with one crystal at 15 min ( mm) is 59 . The rate of diffusion with one crystal So how would I convert this 59 to ( mm/h)?
Answer:
This is straight forward.If there are 60 minutes in one hour, then to convert minutes to hours as requested, simply divide the number of minutes given by 60.Thus if you divided the 59 by 60 it gives you what?round the answer to whole number.
When there is a moment of any solute present in the solution from high concentration to low concentration area is called diffusion.
It will take 0.25 hours to diffuse one crystal.
This can be calculated by:
Given,
Time for one crystal diffusion = 15 minDiameter for one crystal diffusion = 59 mmIn 1 hour there are 60 minutes.
60 minutes = 1 hour.
Then 15 minutes = ? hours
\(\dfrac{15 \; \text{minutes}}{60 \; \text{minutes}} = 0.25\)
Therefore, to diffuse one crystal of it will take 0.25 hours.
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What is the role of chlorophyll?
Answer:
to absorb light
Explanation:
The energy absorbed from light is transferred to 2 kinds of energy storing molecules. Chlorophyll gives plantsheir green color because it does not absorb the green wavelengths of white light.
how do energy and information cells relate to eachother
Answer:
well you could be aleck and say they are both cells
Answer:active transport, to contract muscles, to make proteins, and in many other ways.
Explanation:
define a reflex action
Answer:
A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain
Explanation:
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How can studying the DNA of organisms and their specific genes provide evidence for how organisms change over ?
Answer:
As generations and generations go on there are mutations that cause one or many mistakes while replicating DNA. The genes are expressed and it can be postive (faster organism) or negative (weaker organism). Overtime the mutation can become a new trait and a new species is formed that is slightly differnt from other species. EX penguins species there are King penguin vs little penguin.
Explanation:
What is an example of a symbiotic organism?
Answer:
The symbiotic relationship between an anemone (Heteractis magnifica) and a clownfish (Amphiron ocellaris) is a classic example of two organisms benefiting the other; the anemone provides the clownfish with protection and shelter, while the clownfish provides the anemone nutrients in the form of waste while also scaring
Explanation:
I asked the same question
If you soak your hands in dishwater, you may notice that your skin absorbs water and swells into wrinkles. This is because your skin cells are ______ to the _______ dishwater. Question 16 options: hypotonic....hypertonic hypertonic.....hypotonic isotonic.....hypotonic hypertonic....isotonic
Answer:
Hypertonic...hypotonic
Explanation:
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When the product is odd, can either factor be even? How do you know?
Answer:
No.
Explanation:
Any number times an even number is even by definition.
Let's call the even factor 2n, and the other factor (odd or even) x. 2n × x = 2nx. Because it is multiplied by 2, it must still be even. The factors of an odd number are all odd.
What is the correct sequence of events for the life cycle of the pork tapeworm, T. solium? Arrange the following statements in chronological order
Answer: See explanation
Explanation:
The correct sequence of events for the life cycle of the pork tapeworm, T. solium in chronological order will be:
• Eggs are produced by adult tapeworms living in definitive host
• Eggs are released in the environment in the faeces
• Pigs eat grass contaminated, or fertilized with human faeces.
• Inside the intermediate hosst, the eggs mature into larvae and encyst in the host muscles.
• The definitive host ingests the larvae and becomes infected.
What’s the answer to 1 and 2 please help me I’ll give brainliest
Answer:
1. Everything except for rocks
2. Humans are burning carbon and putting it in the atmosphere
Explanation:
Explain how breast-cancer genes are still present in the population, despite cancer-related surgeries and deaths.
Answer:
the correct answer would be - inheritance.
Explanation:
BRC1 is one of the genes that cause breast cancer which is thought to be inherited from the parents and even surgery can remove it from the person or it removed with the death of the person but genes already passed on next generation.
Surgery can not remove the gene but the tumor only and can reappear again. It is impossible to remove the complete gene from the population.