Answer:Tailbone of a human
Explanation:
the human appendix is an example of vestigial features.
Why is the human appendix considered a vestigial structure?The human appendix can be referred to as a vestigial organ because it has been proven that removing it after childhood causes no damage.
but, in humans, the appendix has developed to the point where it is strategically located at the intersection of the midgut and hindgut.
Appendixes were employed for digestion by prehistoric humans, who were mostly herbivores.
but, as humans progressed, they began to eat extra without difficulty digestible foods, and the appendix finally lost its ability to function.
Examples of Vestigial Organs
Sinuses. Human cheekbones hold the maxillary sinuses.Appendix. It is one of the most commonly known vestigial organs.Coccyx.Wisdom Tooth.External Ear.Nictitating Membrane.Tonsils.Learn more about vestigial structure here
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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.
If two inedible insects share common colors, they may be warning a predator. This type of defense is called _____. Müllerian mimicry Mallerina mimicry Batesian mimicry
Answer:
Mullerian mimicry
Explanation:
The Mullerian mimicry is a type of mimicry where two or more organisms that are not closely related have mimicked each other for the benefit of all of them. This occurs usually at species that are not closely related, but are similar in size and often in shape. Both species have a proper defense mechanism, being very toxic, containing some acids, being uneatable, but in order to avoid injuries or mistaken attacks, they have also developed a warning signal, usually manifested through their coloration. Both species develop the same type of coloration and patters, making them look almost identical. This is for the benefit of both species, as the predators that they have in common will avoid both species by thinking that it is only one species that is not good for eating, thus having it more easy for remembering and avoiding, especially when it comes to the younger individuals of the predators.
Answer:
Mullerian
Explanation:
Mullerian mimicry is one in which BOTH the mimic and the model are BOTH dangerous to the potential predator and there is no distinction between the mimic and the model.
both dangerous to the potential predator = two INEDIBLE insects, as the question is worded. was correct after graded in ody ssey
Science can best be described as
Answer:
a subject containing Physics, Chemistry and Biology
Answer:
a information gathering process
Explanation:
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.
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:
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 :)
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
All the alleles for type A antigen
There are three antigens in the ABO blood group system, A, B and H. The ABO gene is located on chromosome 9 and has three alleles, A, B and O. The A allele encodes a glycosyltransferase that adds N-acetylgalactosamine to the glycoprotein H antigen that is expressed on all normal red cells.
Hope this helps:)
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
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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.
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.
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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You find an organism that can only be seen under a microscope. When you examine it, you cannot find a nucleus but you see a nucleoid region. What is a likely classification for this organism?
A. Prokaryotic
B. Eukaryotic
C. Unicellular
D. Multicellular
Prokaryolotic so a would be the answer
Answer:
a
Explanation:
Which of the following statements is true?
There are more species of vertebrates than invertebrates
The largest phylum in the Animalia kingdom is Arthropoda
Sponges are not truly animals because they have cell walls,
All animals in the Chordata phylum are vertebrates
Answer:The largest phylum in Animalia is Arthropoda.
Explanation: the first is wrong because there’s over 1,000,000 discovered species of invertebrates and less than 70,000 describes species of vertebrates
The third is wrong because sponges are animals albeit basal and they don’t have cell wall
The fourth is wrong because there are two subphyla in chordata that aren’t vertebrates: Cephalochordata and Urochordata
The true statement is that the largest phylum in the Animalia kingdom is Arthropoda.
The correct option is B.
What are Arthropods?Arthropods are a member of the phylum Arthropoda.
They mainly contain insects, crustaceans, arachnids.
The main characteristics of arthropods are jointed legs, bilateral symmetry, and segmented body.
Thus, the correct statement is option B, The largest phylum in the Animalia kingdom is Arthropoda.
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A three-letter sequence of mRNA that encodes for specific amino acid is called a/an _. A series of these links specific acids together to form a polypeptide.
a) encryption
b) codon
c) DNA
d) gene
Answer:
B. Codon
Explanation:
Codon refers to nucleotide triplets of mRNA that serve to specify the amino acid sequence of proteins. There are total 64 genetic code that specify 20 standard amino acids found in proteins. All codon together make genetic code. For example: AUG is codon that specify amino acid "methionine". AUG codon also serve as initiation codon during initiation of protein synthesis.
A three-letter sequence of mRNA that encodes for specific amino acid is called a codon. Therefore, option (B) is correct.
A codon is a set of three nucleotides in mRNA that tells which amino acid should be added to a protein. There are 64 genetic codes that specify the 20 standard amino acids present in proteins.
The genetic code is made up of all the codons together. As an example: The codon AUG specifies the amino acid "methionine". The AUG codon can be used as an initiation codon when starting protein synthesis.
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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.
What is the relative humidity percentage when the “real feel” is 108 degrees F and the temperature is 96 degrees F?
Answer:
The answer is B. Relative humidity percentage will be 50 %.
Explanation:
Relative humidity is the percentage of water vapors in the air at a particular temperature compared to the how much it can hold at that temperature. if the relative humidity is high (100%) we feel hotter than the actual temperature because water will not evaporate due to air saturation. in this case as the real feel is 108 F at 96 F the relative humidity will be 50 %.
Final answer:
To find the relative humidity based on the 'real feel' temperature of 108 degrees F and an air temperature of 96 degrees F, one would use a Heat Index Chart or calculator. However, without additional information on the actual humidity level, it's not possible to determine the exact relative humidity percentage from just these temperatures.
Explanation:
The question about calculating the relative humidity when the "real feel" is 108 degrees F and the temperature is 96 degrees F requires knowledge of the Heat Index and water vapor density. The Heat Index is a measure that takes into account the relative humidity and temperature to determine how hot it actually feels. To determine the relative humidity given these temperatures, one would typically refer to a Heat Index Chart, which correlates temperature and humidity levels with the perceived temperature. However, without knowing the actual relative humidity or having access to a Heat Index Chart, the exact relative humidity percentage cannot be determined from just the "real feel" and air temperature. Normally, the relative humidity can change as the temperature changes, if the water vapor density remains constant.
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 :)
the whale shark has rows of teeth despite being a filter feeder. what’s the best explanation of this feature?
A. the whale sharks teeth are an example of vestigial structures, if an inherited feature is no longer needed but also not harmful, there’s no evolutionary pressure to get rid of it
B. the whale sharks teeth are an example of of analogue structures. teeth exist in almost every sea creature, and the whale would be at a defensive disadvantage without them.
C. the whale sharks teeth are an example of homologous structures. other mammals also have teeth, and different teeth in humans have different shapes to serve different functions.
D. the whale sharks teeth are an example of embryonic structures. the teeth buds develop early enough in embryogenesis that the whale shark is still born with teeth.
Answer:
not sure i think a!
Explanation:
The correct answer is A The whale sharks teeth are an example of vestigial structures, if an inherited feature is no longer needed but also not harmful, there’s no evolutionary pressure to get rid of it
Explanation:
In biology, a vestigial structure refers to certain features such as organs or even behaviors that do not have a function or purpose in an organism but are still preserved usually because they do not represent a disadvantage for the organism. This occurs in the case of whale sharks teeth that despite being filter feeders, which means they feed on small organisms such as plankton they still have teeth, that they do not use for feeding or any other function, do not represent a harmful feature but might have a function in the past. Therefore, the best explanation for the teeth of whale sharks is that these are an example of vestigial structure, that was inherited but are not harmful and therefore they are still preserved as there is not an evolutionary pressure to get rid of them.
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.
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
R-selected species often experience growth in population giving an curve in a graph
Answer:
R-selected species often experience EXPONENTIAL growth in population, giving a J-SHAPED curve on a graph.
R-selected species are those that have high growth rate. These species may produce many offspring but not all will survive into adulthood.
Answer:
1. EXPONENTIAL
2. J-SHAPED
Explanation:
took test got 100
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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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).
how can urbanization effect a local area
Answer:
It exposes rocks to increased rates of erosion and weathering. It limits the exposure of rocks to acid precipitation.
Explanation:
Hello! :)
Urban populations interact with their environment. Urban people change their environment through their consumption of food, energy, water, and land. And in turn, the polluted urban environment affects the health and quality of life of the urban population.
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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.
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
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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What three processes happen in every geological period?
Answer:
Mass extinctions, Wegenerian cycles, and the emergence of new life forms
Explanation:
Answer:
The correct answer is mass extinctions, Wegenerian cycles, and the emergence of new forms of life.
Explanation:
Every geological period is featured by the occurrences of Wegenerian cycles, mass extinction, and the origination of novel forms of life. The boundaries of the majority of geologic periods are generally mass extinction periods and this mass extinction stimulates the formation of new forms of life.
At the time of the geologic period, an array of tectonic activities plays an essential part as a consequence of the internal functioning of the Earth. The splitting of the continents takes place and arising of new landform at the plate boundaries takes place. This is termed as Wegenerian cycle.