Darwin's theory of evolution by natural selection suggests that inherited characteristics vary among offspring and those allowing the best competition for resources lead to survival, reproduction, and passing of those traits onto the next generation. Over time, this results in population evolution and increased adaptation to the environment, a process known as 'descent with modification'.
Explanation:The main idea of Darwin's theory of evolution by natural selection involves three principles. First, most characteristics of organisms are inherited from parents to offspring. Second, more offspring are produced than can survive due to limited resources, leading to competition. Third, offspring differ from each other in their inherited characteristics.
Darwin reasoned that offspring inheriting characteristics allowing them to best compete for limited resources will survive, reproducing more than less competitive individuals. Over time, due to these inherited traits being passed onto successive generations with increasing frequency, populations evolve in a process Darwin termed 'descent with modification'. So, the population becomes more adapted to its environment.
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Individual differences with a genetic basis lead to in successive generations
find the non permissible replacement for a in the expression of 4/-9a?
Final answer:
The non-permissible replacement for 'a' in the expression '4/-9a' is '0' because it would result in division by zero, which is undefined.
Explanation:
The non-permissible replacement for a in the expression 4/-9a is the value of a that makes the denominator equal to zero, as division by zero is undefined in mathematics. To find it, we set the denominator -9a equal to zero and solve for a:
-9a = 0
a = 0 / (-9)
a = 0
Therefore, the non-permissible value for a in the expression is 0, because it would make the denominator zero and the expression undefined.
Which of the following statements violates the cell theory? A) Mitosis produces new cells identical to the parent cell that divided to make them. B) Viruses are not considered to be living organisms, because they are smaller than a cell. C) Though humans are one organism, they are composed of about 100 trillion individual cells. D) Some scientists believe that prions, tiny proteins much smaller than a cell, that can replicate themselves, may be living organisms.
Answer:
d
Explanation:
An organism had a gene sequence ATGGATACGT that underwent mutation in the noncoding region and formed ATGCGATACGT. The sequence underwent insertion mutation.will This mutation alter the protein function.
An insertion mutation in the noncoding region of a gene may not alter the protein function directly but can affect gene expression or regulation.
The student's question asks whether an insertion mutation in the noncoding region of a gene will alter the protein function. If the sequence ATGGATACGT underwent an insertion mutation and formed ATGCGATACGT, this added base is within the sequence but we cannot determine the effect on the protein function without knowing if the mutation is within the coding or noncoding region. Since the question specifies that the mutation is in the noncoding region, this mutation may not affect the protein directly. However, it's important to understand that changes in noncoding regions can sometimes affect gene expression or regulation, potentially leading to changes in the amount of protein produced or the timing of its production without altering the amino acid sequence of the protein itself.
Which structural feature increases the small intestine's area
which of these are not examples of matter
-carbon dioxide
-energy
-heat
-jelly
-sponge
Energy is not an example of matter. So the correct option is B.
What is the matter?A material called matter is made up of several kinds of particles that take up space physically and have inertia. The many sorts of particles each have a unique mass and size according to the fundamentals of current physics.
The electron, proton, and neutron are the three types of material particles that are most well-known. Atoms are made up of combinations of these particles.
Quarks and leptons, which are both regarded as elementary particles since they are not formed of smaller units of matter, are the building blocks of matter. Protons and neutrons are formed through the interaction of quarks, which are groupings of subatomic particles. Leptons, which are collections of subatomic particles that react to lesser forces, are among the elementary particles that also comprise electrons.
Therefore the correct option is B.
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Which statements are true concerning our interpretation of the results of an experiment?
We will always infer a correct conclusion from accurate data.
An experiment performed correctly will always result in the correct interpretation.
Conclusions inferred from data are often judgments.
Judgment may be affected by what we already think is true (prior knowledge).
Select all answers that are correct.
Before we start an experiment, we should check with other people who have performed the same _____.
procedure
experiment
investigation
Answer:
Conclusions inferred from data are often judgments.Judgment may be affected by what we already think is true (prior knowledge).Explanation:
hope this helps :)
Will pushing on a car always change the car's mechanical energy?
If you ate bacon and fried eggs for breakfast, the largest component of the energy would come from the A) carbohydrates. B) fats. C) proteins. D) sugars.
All the following is our example of destiny dependent limiting factors except?
A: competition
B: overcrowding
C: hurricanes
D: predators
Which of the following best describes a way in which all living things organisms are similar
All living organisms share fundamental characteristics such as cellular structure, DNA as genetic material, metabolism, growth, responsiveness, reproduction, and the ability to adapt through evolution.
All living organisms, from the complexity of a human being to the simplicity of single-celled bacteria, share several fundamental characteristics that define life. Despite the immense diversity found in the biological world, these shared traits illustrate the common evolutionary history of all life on Earth.
Shared Characteristics of Living Organisms
Cellular Organization: All known living entities are composed of one or more cells, which are considered the basic units of life.Genetic Material: Every organism uses DNA to store and transmit genetic information.Metabolism and Energy Processing: Organisms take in energy and transform it to perform all life functions.Growth and Development: Organisms grow and develop according to the data encoded in their DNA.Response to Stimuli: Living things exhibit sensitivity or response to changes in their environment.Reproduction: Life replicates itself through the process of reproduction, which could be asexual or sexual.Evolution and Adaptation: Through the process of natural selection, organisms evolve adaptations to their environment, which is evidenced by the genetic homology in DNA sequences among related species.Homeostasis: They maintain internal balance, or homeostasis, despite changes in the external environment.The diagram shows a plant cell with a large central vacuole. What would happen to this plant cell if the central vacuole was removed? *
It would be unable to conduct cellular respiration.
It would be unable to regulate water storage.
It would be unable to conduct photosynthesis.
It would be unable to divide properly into two new cells.
Explanation can sound logical?
Is it:Science or Pseudoscience
which type of energy is provided by carbohydrate macromolecules? Why is this type of energy important for human body function?
which modern day technology helps scientists measure earth landforms and other features more precisely than ever before
Approximately two-thirds of the mass of a cell is water, and the water is important to maintain the cell's integrity. What would happen to a plant cell during a period of severe drought?
Answer: The plant cell would die
Explanation:
Water is one of the important component in the body of the living organism. It is used to maintain the integrity of the cell.
The cytoplasm in the cell is completely made of water and it helps in the various metabolic activities that takes place inside the cell.
The water inside cell helps in providing mobility to the cell. In the period of severe drought, the cells integrity will be disturbed and the cell would die deprived of water.
what level of organization is shown here?
tall grasses, acacia trees belong to what biome
Drag the labels to the correct locations on these images of human chromosomes
In Biology, human chromosomes are structures containing our genetic information and consist of three main regions: the centromere, the short arm (p), and the long arm (q). A standard human cell contains 23 pairs of chromosomes, totaling 46.
Explanation:The request to 'drag the labels to the correct locations on these images of human chromosomes' involves an understanding of human genetic structure. Human chromosomes consist of DNA and proteins and they carry our genetic information. A typical human cell contains 23 pairs of chromosomes, for a total of 46. These include 22 pairs of autosomes and one pair of sex chromosomes, which determine a person's sex.
Generally, each chromosome has three key regions: the centromere, the short arm (p), and the long arm (q). The centromere is what links sister chromatids (the identical copies formed during replication) together. The region above the centromere is known as the 'p' arm, while the region below is the 'q' arm.
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A material you are testing conducts electricity but cannot be pulled into wires. It is most likely a _____.
metal
nonmetal
metalloid
Hayden has placed a cricket in a terrarium. He is interested in learning about cricket behavior. Which of the following is a question about cricket behavior that Hayden can answer through a scientific investigation?
Answer:
How will the cricket behave if another cricket is introduced into the terrarium?
Explanation:
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What is the taxonomy of each organism from largest to smallest grouping?
describe the characteristics of science
Characteristics of science include :
Systematic observationobjective approachObservation and hypothesisTesting and Error estimation'predictabilityStatistical study of data deriving conclusions About scienceScience is a systematic enterprise that built and organize knowledge based on testable experiments, observations and predictions about the universe.
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I need help!!
I have to write a riddle on evolve and adapt, but the riddle can not directly say the words evolve or adapt and has to describe evolve and adapt without giving it away.
I can not think of anything and it is due soon. PLEAS HELP!!
The riddle created encompasses the gradual nature of change and adaptation in organisms without explicitly mentioning the words 'evolve' or 'adapt'. It indicates the process of passing traits from one generation to another to face environmental challenges.
I'm a master of change, though I take my time,
Hardy and resilient, I thrive on my climb.
From generation to generation, I finesse my design,
Facing challenges with shifts that are truly divine.
What am I?
This riddle touches on the gradual nature of evolutionary change and the resilience required to adapt over time. It suggests the passing of traits and variations from one generation to another and the changes that occur to help organisms thrive in their environments.
Water at about 4°C (39°F) is more dense than water at 0°C (32°F). Why would the living organisms in the lake die if the water at the freezing point was denser than the water at 4°C?
The water would freeze across the surface of the lake, blocking sunlight necessary for photosynthesis.
The water would freeze across the surface of the lake, blocking the dissolving of oxygen and nutrients.
The freezing water would sink before it could freeze, preventing the lake water from freezing.
The freezing water would sink to the bottom and freeze the lake water from the bottom up.
Answer:
The answer is D
Explanation:
Just got it right. Trust me its not A.
4. A stress is considered a "bad" stress when it A. cannot be eliminated. B. keeps a person from feeling good. C. challenges a person to do better. D. doesn't lead to a productive end.
Why does the soil of Antarctica have little organic content?
The soil of Antarctica has little organic content because its frost.
What is the organic contents of soil?The organic content of soil can be defined as part of the soil that consists of plant or animal tissue in various stages of breakdown (decomposition).
In Antarctica, the temperature is extremely cold which allows little to no plants or animals to survive.
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Viruses cannot reproduce without a host, they do not need to excrete waste nor breathe, but they do die and they do evolve. Scientists, however, do not consider viruses to be living things. Why?
Because living things must exhibit all characteristics of life to be considered living
Because living things must be able to reproduce on their own
Because living things must be able to excrete some form of waste
All of the above are true
Viruses are not considered living things because they do not meet all the criteria of life, such as the ability to reproduce independently and carry out metabolic processes. They depend entirely on host cells for reproduction, lacking the cellular machinery necessary for living organisms.
Explanation:Scientists do not consider viruses to be living things because they do not exhibit all the necessary characteristics of life. Viruses cannot reproduce without a host, they do not maintain homeostasis, they lack metabolic processes, and they do not grow or respond to their environment in the way living organisms do. Living things must be able to reproduce on their own, maintain a stable internal environment, carry out metabolism, and respond to their environment. Despite sharing some traits with living organisms, such as containing genetic material and the ability to evolve, viruses do not meet all the criteria needed to be considered alive.
The correct answer to the student's question is: 'Because living things must exhibit all characteristics of life to be considered living'. This encompasses the inability of viruses to reproduce on their own, the lack of metabolic processes, and the absence of other life-sustaining activities that are characteristic of living organisms.
Which valuable mineral is often found in the rock called kimberlite?
A.goldB.silverC.diamondD.platinum
Answer:
The correct answer is option C.diamond.
Explanation:
Kimberlite is a type of heavy and fragmented igneous rock that contains the highly valued diamond mineral. Remember that igneous rocks are formed with hot magma that comes from the interior of the Earth and as it ascends to the surface it cools and creates these types of rocks that contain minerals.
Although diamond is one of the minerals that compose it, it is not the most abundant. The most abundant mineral is olivine, and among other of its minerals is also phygopitta mica.
This rock formation can be found in areas with elevated centers of continental platforms.
How to convert 2.4kg into cg