Answer:
C. horizontal gene transfer
Explanation:
Horizontal gene transfer (HGT) can be defined as a method of gene transfer, which involves movement of genetic material between organisms by means other than reproduction or transfer of genetic material from parent to offspring.
In prokaryotes, HGT occurs by means of conjugation, transformation, or transduction.
Conjugation involves transfer of DNA between bacteria by direct cell-to-cell contact or conjugation bridge. Transformation involves uptake of naked DNA by the bacterial cells and trasnduction involves gene transfer wit the help of bacteriophages.
Thus, the correct answer is option (C).
Horizontal gene transfer or lateral gene transfer is the movement of genetic material between unicellular and/or multicellular organisms other than by the transmission of DNA from parent to offspring. HGT is an important factor in the evolution of many organisms.
Prokaryotes can take up genetic material from each other without reproducing or even being closely related in a phenomenon called horizontal gene transfer. Therefore, option (C) is correct.
Horizontal gene transfer (HGT) is a type of gene transfer that involves moving genetic material from one organism to another without reproducing or passing genetic material from a parent to a child.
HGT happens via conjugation, transformation, or transduction in prokaryotes.
Through direct cell-to-cell contact or a conjugation bridge, DNA can be transferred between bacteria during conjugation. Both transformation and transmission involve the transfer of genes using bacteriophages and involve the uptake of DNA by the bacterial cells.
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If there are 46 chromosomes then how many chromatids will there be?
Answer: i believe its 92 chromatids
Explanation:
Answer:
92 chromatids
Explanation:
46x2 = 92
Choose all the answers that apply.
Ethical scientists -
follow the scientific method.
report accurate data.
keep detailed records.
don't let results of experiments out to the public.
make unbiased conclusions.
ethical scientist would follow scientific method they would also report accurate data and they're going to keep detailed records now an ethical scientist is not going to hide their experiment from the public the only reason you're going to hide your experiment from the public would be because you have something to hide being on ethical and it would also be unethical to make an unbiased conclusion
Answer: follow the scientific method.
report accurate data.
keep detailed records.
make unbiased conclusions.
Explanation:
Ethical scientists are those scientists which performs the research and write their data in an accurate manner. These are the scientists which keeps the detailed records. These make unbiased conclusions only based on their observations and results. They keep in mind the relevance of ethical research and they also present and publish their research public-ally.
A red parent flower was crossed with a white parent flower to produce all red flowers in the first generation. If two red flowers from the first generation were crossed to produce a 3:1 ratio of red to white in the second generation, then what is the genotype if the original red flower parent and white flower parent?
Answer:Red is Dominate white is Submissive
Explanation: because the first generation had majority Red but were able to produce White in the second generation white has to be submissive
A squirrel population lives in an area. Over many years, a river in that area grows wider and stronger, eventually forming a canyon. The squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. This is an example of
A. differential speciation.
B. sympatric speciation.
C. penultimate speciation.
D. allopatric speciation.
Answer:
The correct answer is D. allopatric speciation
Explanation:
How can these forelimbs explain how life changes over time?
Answer:
The correct answer would be divergent evolution showing by homologous organs.
Explanation:
In the illustration human arm, the flipper of the dolphin, wings of bat and forearm of frog are shown. All these four forelimbs have a different function, however, these forelimbs are having the same underlying anatomy.
The organs having basic structure and origin, but different functions are known as homologous organs. These organs point towards the same ancestor from these organisms evolved. They show a case of divergent evolution.
When related species become less similar in order to adapt and survive in different conditions, evolution is called divergent evolution.
Thus, these forelimbs provide evidence for divergent evolution.
Asteroids are larger than A. planets. B. meteoroids. C. stars. D. the Sun.
I think it’s B. Meteoroids
Answer:
B.meteoroids
I think this is the answer.
Which of the following best describes a vantage of having data presented in a table over a paragraph?
A. The number of digits they can be included within the data.
B. The accuracy of the data.
C. The way that the data is organized.
D. The amount of detail they can be included.
Please help ASAP
Answer:
C. The way that the data is organized.
Explanation:
Placing data in a table allows the reader to have a better view and understanding of the data and how each figure is related to the rest, via columns and rows. It also provides a much better organization of the information.
A, B and D are false answers, because the aspects they mention wouldn't be impacted by a paragraph formatting (numbers would stay the same, just a lot harder to read and understand).
What part of the Milky Way allows for determination of its rotational direction? A. Galactic body B. Two long tails C. Celestial body D. Galactic disk
Answer:
The answer is B. Two long tails
Explanation:
"Two long tails extend from the edge of the spiral pattern [of the Milky Way] and trail out beyond the galaxy, giving an indication of the Milky Way's direction of rotation."
This is a sentence taken out of my studying book.
Galactic disk is the part of the Milky Way which allows for determination of its rotational direction.
What is Milky Way ?The Milky Way is the galaxy that includes our Solar System, with the name describing the galaxy's appearance from Earth.The term Milky Way is a translation of the Latin via lactea, from the meaning "milky circle".From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from within.Galactic DiskA galactic disc (or galactic disk) is a component of disc galaxies, such as spiral galaxies and lenticular galaxies.Learn more about Milky way galaxy here:
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The graphs below illustrate change in a lizard population over time. Which process most likely led to the change in the lizard population?
A
natural selection acting on a harmful trait
B
natural selection acting on a beneficial trait
C
natural selection acting on a dominant trait
D
natural selection acting on a recessive trait
Answer: Option 'C' is correct.
Explanation:
Dominant traits are those traits which are visibly expressed in the organisms ( here, lizard)
Recessive traits are those traits in which genes are carried but it is not visible itself in the organisms.
Here, we can see that genes of Allele Z is carried by population of lizard in 50 years.
Here, it is natural selection acting on a dominant trait.
Hence, option 'C' is correct.
The process most likely led to the change in the lizard population is the natural selection acting on a dominant trait. So, the correct option is C.
What do you mean by Natural selection?Natural selection is a selection made by nature on the basis of the most favorable variations among all the variations.
The proportion of Z-allele increases from year 1 to year 50. So, this allele generally contains a dominant trait, because dominant traits are visible in organisms when they are present. While recessive traits are not identified or visible even they are present in organisms.
Therefore, the process most likely led to the change in the lizard population is the natural selection acting on a dominant trait.
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Primary differences between archaic Homo sapiens and modern Homo sapiens is?
A. anatomy
B. culture
C. food subsistence
D. all of the above
D: all of the above becuase natural selection, and food sources change over time and since the environment is different then before so is the animals culture
The primary differences between archaic Homo sapiens and modern Homo sapiens are as follows:
Anatomy.Culture.Food subsistence.Thus, the correct option is D, i.e. All of the above.
What are the characteristics of the modern Homo sapiens?The characteristics of the modern Homo sapiens are as follows:
A largely bounded braincase.A chin and a narrow pelvis.Lack of brow-ridge. Lighter composition of skeleton.Higher forehead.The characteristic of archaic Homo sapiens is they have a short bounded braincase with a low or short forehead. Food substance is also entirely different. Archaic Homo sapiens entirely depend on raw meat, flash, etc. The culture and tradition also differ among both types of Homo sapiens.
As Archaic Homo sapiens are middle Pleistocene that generally possesses morphologically and behaviorally different from modern Homo sapiens.
Therefore, the correct option for this question is D, i.e. all of the above.
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What type of inertia and resilience is exhibited by grassland and rainforest?
Both, the grasslands and the forests exhibit high resilience to lot of exposure to sunlight. They are both found at places where there is lot of sunlight throughout the year, so they had to adapt to be able to witstand such intense sunlight. The grasslands also exhibit high resilience to droughts, as they can be found at regions where there's prolonged periods of drought. The rainforests, on the other hand, have developed high resilience to water, as they occupy regions where there's large amounts of water, more than the plants actually need, so it is crucial for them to be able to take in a lot of water, but also to be able to stop the intake of it.
The. diagram shows an event that occurs during. meiosis.What is the result of this event?
The result of this event in meiosis is the formation of genetically unique haploid daughter cells.
The event depicted in the diagram represents a crucial step in meiosis, a specialized cell division process that leads to the formation of haploid daughter cells. Meiosis is essential for the production of gametes (sperm and egg cells) with half the chromosome number of the parent cell, which is crucial for sexual reproduction.
During meiosis, there are two successive divisions: meiosis I and meiosis II. The event in the diagram corresponds to meiosis I, specifically the process known as "homologous chromosome pairing and crossing over."
The outcome of this event is the formation of genetically unique haploid daughter cells after meiosis I. These daughter cells have a combination of genetic material from both parents, thanks to the crossing over process. Subsequently, meiosis II further divides these haploid cells to produce four distinct gametes, each with a unique combination of alleles. This genetic diversity among gametes is essential for sexual reproduction and contributes to the variation seen in offspring.
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Which kinds of cells are always single-celled?
a). eukaryotes
b).prokaryotes
Answer:
B
Explanation:
prokaryotes
It’s prokaryotes because it’s like bacteria and stuff and eukaryotes are for people, plants and animals
What selective breeding, does the selecting?
(A.) Humans
(B.) The organisms that are breeding
Answer:
(A)
Explanation:
Humans choose what traits they like from certain animals, then breed them to make more of that trait, combined with the other trait they liked. Hence how we got so many breeds of dogs.
A. Humans is correct
Which kingdom is known for its ability to survive in extreme environments?
Answer:
archaea
Explanation:
Archaebacteria kingdom is known for its ability to survive in extreme environments.
What are Archaebacteria?
Archaea are generally similar in appearance to bacteria, hence their original classification as bacteria, but have significant molecular differences most notably in their membrane structure and ribosomal RNA. They are found in extreme environments such as hot boiling water and thermal vents under conditions with no oxygen or highly acid environments. Although members of this group are generally less versatile than bacteria and eukaryotes, they are generally quite skilled in adapting to different extreme conditions, holding frequently extremophily records.
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Which of the following chemical reactions proves the fact that the products of photosynthesis are reactants of respiration?
There are no options provided but this is the formula for cellular respiration:
O2 + C6H12O6 + H2O) —> CO2 + H2O + energy
List some general characteristics of producers and list a few examples.
A producer is like... a green plant or bacterium (plural for bacteria) and it's part of the first level of the food chain. Phototrophs and chemotrophs are two major producers. Phototrophs use the energy from the sun to convert carbon dioxide into carbohydrates, in other words, photosynthesis. Chemotrophs are almost microscopic- they are found in places where water and light are scarce (or rare) or even not there at all.
Sorry if this isn't any help... I'm trying my best, I don't know much. But if it does help, you're welcome! Have a nice day!
Answer:
Plants receive energy from the sun. Plants are also called producers.
All green plants are called producers as they are the main thing that produces food. They are at the bottom of the food chain.
Producers make food by photosynthesis, which is possible because of the chloroplasts found in the plant cells.
(Chloroplasts are the organelles within the plant cell where photosynthesis takes place. And it also gives a plant green color)
Whenever eaten, usually by primary consumers, they get the energy stored in the plant from the sun, fufilling it's role in the food chain.
If there were no producers, there wouldn't be a food chain, and we would already be dead.
The model shows how pimples are formed in the skin. Why do you think this process can occasionally lead to pain?
I can’t see the model but perhaps the pimple has stayed in the persons skin to long and grew infected? Like I said I’m sorry but I can’t see any “model” but I do hope this helps.
Answer:
the answer is B. The bacteria replication leads to swelling, which irritates nerves in the dermis.
Explanation:
Evolution is one example of a theory. From what you understand about the meaning of the
word theory in science, what can you conclude about this theory?
There is very little evidence to support it.
It may soon become a law.
Scientists no longer need to test this idea because once a theory is determined it is not
revised.
It is supported by hypotheses, repeated tests and law from one or more fields of science.
Answer: It is supported by hypotheses, repeated tests and law from one or more fields of science.
Explanation:
In the context of science, a theory is a well-established explanation for scientific data. Theories typically cannot be proven, but they can become established if they are tested by several different scientific investigators.
The term 'theory' in science, such as the theory of evolution, refers to a well-supported explanation confirmed through testing and evidence, not a guess. It is incorrect to dismiss evolution as 'just a theory' as it misconstrues the scientific strength and evidence behind it.
When discussing the theory of evolution, it's important to understand the scientific meaning of the word 'theory'. A scientific theory is not a simple guess, but rather a comprehensive explanation of aspects of the natural world that has been substantiated through extensive testing, observation, and experimentation. Theories are supported by a multitude of evidence and, contrary to popular misconception, are not on the verge of becoming a law. Scientific laws describe relationships under certain conditions in nature, while theories explain why these relationships exist.
The theory of evolution is one such well-established theory, supported by evidence from various fields, including anatomy, genetics, paleontology, and ecology. It articulates how species change over time through mechanisms like natural selection and genetic drift. Theodosius Dobzhansky's statement that 'nothing in biology makes sense except in the light of evolution' underscores the fundamental role of evolutionary theory in the biological sciences. It is incorrect to say that evolution is 'just a theory' in an attempt to diminish its credibility; such a statement misunderstands the scientific definition and the robust evidentiary support backing it.
The earth is the ____ planet from the sun, which is just the right distance for life to utilize in the suns power and energy
Answer: earth is the 3 planet form the sun
Explanation: the earth is in the perfecdt location for it to be not that cold and at the same time not that hot so life can live on the planet.\
I really hope this helps you out!
have a great rest oif your day :)
Which statement describes how geologists use data from seismographs to learn about earthquakes?
They often compare information from all over the world.
They map the location of an earthquake’s focus.
They use one reading to determine the location of an epicenter.
They measure the difference between the arrival times of surface waves.
Answer:
A. They often compare information from all over the world.
Answer:
The correct answer will be they often compare information from all over the world.
Explanation:
A seismograph is an instrument which is used to detect and record the waves produces during an earthquake.
Earthquakes generate a series of seismic waves which travel radiate through the Earth. These waves travel in two forms- P-type or primary waves and S-type or secondary waves.
Geologist uses a simple method for locating an earthquake by finding the time interval between the P- and S-wave arrived at various seismograph stations. the distance between the earthquake point and station is then calculated from travel-time curves and standard travel-time tables. Arcs are drawn on the globe and mark the epicentre. They compare the data with the existing data and recorded data all over the world.
Thus, they often compare information from all over the world is the correct answer.
The DNA sequence of the West Indian Ocean coelacanth is closest to which species
The DNA sequence of the West Indian Ocean coelacanth is closest to humans. This is based on our shared evolution, where the coelacanth branched off relatively early in the evolutionary path leading to modern four-limbed vertebrates, including humans.
Explanation:The DNA sequence of the West Indian Ocean coelacanth is closest to humans among all modern species. The coelacanth, often referred to as a lobe-finned fish, belongs to the Osteichthyes clade and is highly significant in the field of evolutionary biology. Resembling the transitional stage from fish to tetrapods (four-limbed vertebrates), their DNA provides valuable insights into our own evolutionary history. It shares more homology with vertebrates, especially tetrapods, than with any other fish.
The DNA sequence held by coelacanths today would have branched off the path leading to modern tetrapods relatively early in our shared evolutionary history before the development of categories like reptiles, birds, amphibians, and mammals. This makes its DNA sequence closest to early tetrapod ancestors, tying it more closely to humans than even certain other contemporary fish species.
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The DNA of the West Indian Ocean coelacanth is most similar to that of lungfish, as both are lobe-finned fishes sharing a common ancestor with tetrapods.
The DNA sequence of the West Indian Ocean coelacanth is closest to that of lungfish. Both coelacanths and lungfish belong to the group of lobe-finned fishes, which share a common ancestor with the earliest land vertebrates, including amphibians. These lobe-finned fishes have pectoral and pelvic fins with a structure similar to the limbs of terrestrial vertebrates. The discovery of the coelacanth, initially thought to be extinct, provides valuable insight into the evolution of vertebrates and their transition from water to land.
PLS HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! THIS ONE IS FOR 20 POINTS. I will also give you the brainiest points?!!!!!!!!!!!what cell structure uses aerobic respiration to supply energy to the cell?
Answer:
Cytoplasm
Explanation:
Happy to help
Pls mark as Brainliest.
NEED HELP ASAP! WILL GIVE BRAINLIEST
A cat is blinded in one eye in a fight. When this cat later sexually reproduces with another cat, how will the blindness affect the offspring?
A) All of the offspring will be blind because blindness is a dominant trait.
B) Most of the offspring will be blind if the other parent cat carries the same allele for blindness.
C) None of the offspring will inherit blindness from this cat, because it is not a genetic trait.
Answer:
C
Explanation:
C) None of the offspring will inherit blindness from this cat, because it is not a genetic trait.
its not in your genes. It was an environmental factor not hereditary.
Hope this helps!
A scientist is conducting an experiment to see which vitamin, brand X, Y, or Z, will help mice gain weight. An equal amount of each vitamin will be mixed with mouse food and given to ten mice every day for ten days. At the end of ten days, all mice will be weighed. What would serve as a good control for this experiment?
Answer:
A good control for that experiment would be a mouse or mice who have been given no vitamins.
Explanation:
So, that they can be compared to the mice who have been given vitamins.
Answer:
The good control would be if a mouse or mice who have given food without vitamin for ten days.
Explanation:
The good control of an experiment must remain equal or the same throughout in order to receive precise or accurate results. It is something that is used as an ideal of comparison for checking the end results of an experiment.
A mouse who have given food without equal or no vitamin for ten days would be a good control as it will help in comparing the weight with the ten mice who were given an equal amount of vitamin for ten days.
Thus, good control would be if a mouse or mice who have given food without vitamins for ten days.
Poison ivy vines often climb tree trunks toward light. They do not harm the trees. What form of symbiotic relationship is this? *
a. Mutualism
b. Commensalism
c. Predation
d. Parasitism
Answer:
commensalism is your answer
Explanation:
commensailisn is where both organisms benefit and neither bring harm to each other.
Give her Brainliest!
According to cell theory,
A) all multicellular organisms are composed of prokaryotic cells.
B) only cells like the eukaryote can carry out the functions of life.
C) single celled organisms like these are only capable of asexual reproduction.
D) even primitive cells, like the prokaryote, can carry out the functions of life.
Answer:
I am pretty certain it is D
Explanation:
Answer:
Your answer is D) even primitive cells, like the prokaryote, can carry out the functions of life.
Explanation:
Hope this helps :) -Mark Brainiest Please :)
Science can best be described as
Answer:
a subject containing Physics, Chemistry and Biology
Answer:
a information gathering process
Explanation:
How much does an elephant weigh?
Answer:
An African Bush Elephant- 13,000 lbs
An Asian Elephant- 12,000 lbs
An African Forest Elephant- 6,000 lbs
Explanation:
The force that gravity exerts on an object is called _____. A. mass B. density C. volume D. weight
Answer: D. Weight
Explanation:
On different planets, the mass, density and volume of an object will stay the same, but the weight changes depending on the gravity.
Hello There!
The correct answer is weight.
Weight is a measure of the force of gravity on an object.