Answer:
The pairs of chromosomes become arranged on the metaphase plate.
Explanation:
Please mark brainliest and have a great day!
Answer:
Explanation:
This stage is characterised by the arrangement of homologous chromosomes at the equator of the cell and the formation of micro tubules(spindle and fibres) attached to the centomere of each homologous chromsomes.
What are the three domains of life? (Choose all that apply)
Answer:Archaea, Bacteria, and Eukarya
Explanation:
Answer: (D) on edge
Explanation:
Bacteria, Archaea, Eukarya
Which part of the spine is likely to cause a nerve signal to travel faster?
A. Backbones
B. White matter
C. Nuclei
D. Gray matter
Observations of Cells in Stages of Cell Cycle
Sample: Number of Cells in Interphase Number of Cells in Prophase Number of Cells in Metaphase Number of Cells in Anaphase Number of Cells in Telophase
Sample A 6 15 4 7 8
Sample B 25 4 2 3 1
Sample C 4 9 5 3 6
You are observing different tissue samples and classifying the cells into their respective stage in the cell cycle. What can you conclude about Sample B based on these observations?
A) Sample B Is is most likely cancerous because most of the cells are in interphase.
B) Sample B is most likely cancer tissue because most cells are in some stage of mitosis.
C) Sample B is most likely a normal tissue sample because most of the cells are in interphase.
D) Sample B is most likely a normal tissue sample because most cells are in some stage of mitosis.
I think its D but I'm not sure
Answer: The Correct answer is
C) Sample B is most likely a normal tissues sample because most of the cells are in interphase.
Explanation:
Which organism is not limited by size because of its structures and life cycle? firefly octopus tree frog orca
Answer:
The correct answer is an orca.
Explanation:
Have a nice day! :)
Orca organism is not limited by size because of its structures and life cycle. So, the correct option is D.
What is Life cycle?Life cycle is defined as the biological life cycle which is a series of changes that an organism undergoes which returns to the initial state. The concept is closely related to life history, development, and ontology, but differs from them in its emphasis on renewal.
A life cycle is also known as circle of life because animals and plants are born, grow into adults, reproduce and then die but their children then continue their life cycle where the pattern is repeated again and again. Repeats, sometimes for millions of years which shows the pattern as a circle helps us see how it repeats. Organism depends on life cycle along with structure due to limitation of its size such as firefly, octopus, etc,
Therefore, the correct option is D.
Learn more about Life cycle, here:
https://brainly.com/question/12600270
#SPJ6
difference between a theory and a law?
Answer:
Generally, laws describe what will happen in a given situation as demonstrable by a mathematical equation, whereas theories describe how the phenomenon happens.
Which of these is a process during which the hydrosphere interacts with the exosphere?
A. Solidification of water into ice
B. Absorption of rainwater by soil
C. Absorption of heat in lakes and oceans
D. Condensation of water vapor into water
Answer:
The correct answer is C, absorption of heat in lakes and oceans.
Explanation:
The hydrosphere represents all water on earth, while the exosphere represents the outer-shell of our atmosphere(pretty much space). With the sun coming from space, and the water (lakes and oceans) on earth absorbing that heat, it would create an interaction between the exosphere and hydrosphere.
Between the given options, condensation of water vapour into water is the best example of a process during which the hydrosphere interacts with the exosphere. The hydrosphere is mainly ground-level water, and the exosphere is the outermost atmospheric layer.
Explanation:The hydrosphere mainly refers to liquid and solid water on Earth's surface, and the exosphere represents the outermost layer of the Earth's atmosphere. None of the options (A-D) truly exemplify an interaction between the hydrosphere and the exosphere because they mostly involve interactions between the hydrosphere and other parts of the Earth's system.
However, if we had to choose one, the best fit might be D. Condensation of water vapour into the water as this involves water in the atmosphere, possibly extending to the exosphere, transforming into a form that interacts with the surface hydrosphere.
Learn more about Hydrosphere-Exosphere Interaction here:https://brainly.com/question/1808712
#SPJ3
Photosynthesis converts light energy to chemical
energy.
Which molecules are the end product of this
transformation of energy in this reaction?
Answer:
Glucose, 2 oxygen
Which of the following is an example of gene flow? A forest fire kills 50% of red-spotted chipmunks in a forest community. Pollen from a yellow daisy travels across a stream and pollinates an orange daisy. A bird with blue feathers is less camouflaged in the rainforest than a bird with green feathers. Mice with heavy coats are able to survive the winter better than mice with thin coats.
Answer:
Pollen from a yellow daisy travels across a stream and pollinates an orange daisy.
Explanation:
Gene flow refers to the movement of genes from one population to another population of the same kind.
From the alternatives given, Pollen movement from a yellow daisy across a stream to pollinate an orange daisy is an example of gene flow
Answer: Pollen from a yellow daisy travels across a stream and pollinates an orange daisy.
Explanation:
The gene flow can be define as the transfer of the genetic variation typically from one population to the other. If the rate of flow of gene is high enough, the two population in which the gene flow has occurred will become equivalent in allele frequencies and therefore will become the single population.
Pollen from a yellow daisy travels across a stream and pollinates an orange daisy. is the correct option, this is because of the fact that through pollen which is the male gamete the genetic variations are passing from one population to another population of the same species of daisy. Thus the allelic frequencies will become the equivalent in the two populations of the same species. Thus this will result in the formation of the single population.
Page 38 #31
At Mountain Lakes High School, the mathematics and physics scores of nine shidents were
compared as shown in the table below,
Mathematics
Physics
55
66
93
89
8960
94 52
90
84
45
56
64
66
76
73
89
92
State the correlation coefficient to the nearest hundredth, for the line of best fit for these data
The correlation coefficient, represented by 'r', measures the degree to which two variables are linearly related. To determine the coefficient, you would typically use a statistical calculator or software to input the given mathematics and physics scores. Depending on the correlation coefficient value, this will indicate whether there is a positive, negative, or no linear relationship between the scores.
Explanation:The question appears to be asking for the correlation coefficient of the given mathematics and physics scores. The correlation coefficient, often denoted by r, quantifies the degree to which two variables are linearly related.
To determine this correlation, you would commonly use a statistical calculator or software to input the given scores and calculate the coefficient. As given data isn't enough to determine r directly, I can't provide the exact value of the correlation coefficient.
What does the correlation coefficient mean?A correlation coefficient of +1 indicates a perfect positive linear relationship between the two variables, a correlation coefficient of -1 shows a perfect negative linear relationship, and a correlation coefficient of 0 signifies that there is no linear relationship between the variables.
Learn more about Correlation Coefficient here:https://brainly.com/question/15577278
#SPJ12
The correlation coefficient for the line of best fit for the data in the image is 0.94. This means that there is a very strong positive correlation between the mathematics and physics scores of the students.
Here is a more detailed explanation of the correlation coefficient:
The correlation coefficient is a statistical measure of the strength and direction of the linear relationship between two variables.
It is calculated as the covariance of the two variables divided by the product of their standard deviations.
The correlation coefficient can range from -1 to 1, with a value of -1 indicating a perfect negative correlation, a value of 0 indicating no correlation, and a value of 1 indicating a perfect positive correlation.
A positive correlation coefficient indicates that the two variables tend to move in the same direction.
For example, if the correlation coefficient between two variables is 0.8, it means that when one variable increases by 1 unit, the other variable tends to increase by 0.8 units.
A negative correlation coefficient indicates that the two variables tend to move in opposite directions.
For example, if the correlation coefficient between two variables is -0.8, it means that when one variable increases by 1 unit, the other variable tends to decrease by 0.8 units.
For such a more question on coefficient https://brainly.com/question/28499705
#SPJ6
Explain how the data answered the essential question. Use the following questions to guide your thinking and your answer.
Answer:
There is not enough detail or material to make my answer, i'ts unfortunate but i am unable to answer this question
Explanation:
Answering scientific questions with data involves justifying the relevance of the data collected, making decisions based on patterns observed, and stating conclusions clearly. Discrepancies between expected results and actual findings can lead to discussions on experimental design and data reliability.
To analyze the data and answer how it addressed the essential question, we begin by looking at the types of data collected. Justifying the selection of data involves discussing why this data is appropriate for answering the scientific question at hand. For instance, in an experimental context, quantitative data from measurements or qualitative observations may be gathered to test a hypothesis.
After collecting and graphing the data in an experiment, you then make decisions and conclusions. To state your decision, you must determine whether the data supports or refutes your initial hypothesis based on the patterns observed. Then, to state your conclusion, craft a complete sentence summarizing these findings. This conclusion may confirm or differ from expected results, prompting discussion on possible reasons, such as experimental error, assumptions, or the robustness of the data.
In making your profile and examining the data, it's essential to engage in discussions, whether with a partner or in a group. By doing so, you ensure varied perspectives and a thorough understanding of the data's implications. This collaborative analysis culminates in sharing results with the class, fostering a deeper knowledge of the importance of data interpretation in scientific inquiry.
Although cellular respiration involves many steps, the whole process can be represented by a single equation. A + B → C + D + E Which substances would complete the equation that models the overall process of cellular respiration? A: B: C: D: E:
Answer:
A: glucose
B: oxygen
C: carbon dioxide
D: water
E: ATP
I just took the test and it was right
In the equation; A + B → C + D + E
A = glucose (C6H12O6)B = oxygen (O2)C = carbon dioxide (CO2)D = water (H2O)E = energy (ATP)CELLULAR RESPIRATION:
Cellular respiration is a general process by which living organisms obtain energy needed for metabolic activities by breaking down food molecules in their cells. Cellular respiration involves series of internal processes but can be summarized by the chemical combination of glucose and oxygen to form carbon dioxide and water. The chemical equation of cellular respiration is as follows:C6H12O6 + 6O2 → 6CO2 + 6H2O
Therefore; the substances represented by the letter is as follows:
A = glucose (C6H12O6)B = oxygen (O2)C = carbon dioxide (CO2)D = water (H2O)E = energy (ATP)Learn more at: https://brainly.com/question/13721588?referrer=searchResults
Which graph represents a nonlinear relationship?
Answer:option 4 on edgunity
Explanation:
Mammary glands are a shared characteristic among mammals and the oldest common ancestor of mammals. This is an example of a
A. phylogeny.
B. synapomorphy.
C. cladogram.
D. taxonomy.
This is an example of a B. synapomorphy.
What is the definition of Apomorphy and Syndrome?
: A characteristic or characteristic shared by two or more taxonomic groups and derived by evolution from a common ancestral form.
Cinapomorphi is a property (morphological, molecular, or behavioral) shared by taxon groups for inheritance from a common ancestor. Therefore, the co-derived trait is evidence of a hierarchical structure associated with historical connections.
For example, the presence of the mammary gland is a symplesiomorphy of mammals associated with tetrapods, but a symplesiomorphy of mammals associated with each other (eg rodents and primates).
Advanced character states are shared by two or more taxa. It is inherited from the latest common ancestor, and it is speculated that there is no such character in that ancestor, and it is derived by evolution.
Learn more about Mammary glands here: https://brainly.com/question/26175262
#SPJ2
Which of the following terms describes water that is safe to drink?
clean
filtered
potable
sterilized
Answer:
water that is safe to drink is clean
Which statement would least likely be used to describe variation?
Of the given statements, the one least likely to be used to describe variation is Variations that decrease reproductive success are more likely to be passed on.
Option B is correct
The fundamental principle of natural selection states that variations providing advantages in survival and reproduction are more likely to be passed on, influencing future generations. Also we can say, variations that decrease reproductive success would naturally be less likely to be passed on as they hinder the individual's ability to leave offspring.
Therefore, stating that variations with negative impacts are more likely to be passed on contradicts the basic principles of evolution and is unrealistic.
complete question:
Which statement would least likely be used to describe variation?
Variations are inherited differences between individuals of the same species.
Variations that decrease reproductive success are more likely to be passed on.
Variations may result in changes to an entire population after many generations.
Variations provide some individuals with an advantage.
this and return
3. How does a renewable resource differ from a nonrenewable resource?
Answer: a nonrenewable resource takes years to be replaced or never is once it is used up, while a renewable resource takes little time to be replaced.
Approximately when did the first plant and arthropods appear on land
Answer:
470 million years ago
Explanation:
Both the plants and the arthropods initially developed and lived in water. As the atmosphere was changing though, they gradually started to develop for life on land, which eventually gave birth tot he first plants and arthropods that were fully terrestrial. The first plants on land occur around 470 million years ago in the fossil records, while the first arthropods around 450 million years ago, though the genetic analyses have shown that they were present on land around 20 million years earlier. The first terrestrial plants were small, simple, and had small and not well developed roots. The first arthropods though, the millipedes, centipedes, and scorpions, were almost identical to the ones we have in the present, being well developed and adapted for terrestrial life.
Answer:
444 Ma
Explanation:
Which of the following is an advantage of minimizing pollution?
A. More fossil fuels, like gasoline, can be
burned.
B. It will stop nonnative species from entering
ecosystems.
C. Fewer harmful substances enter the
environment
D. It will prevent certain organisms from being
overhunted.
During the past 150 years in the United States, how did energy
consumption compare to population growth?
Answer:
Cause the more we made engery and find oil we made a huge population growth cause of what we could do.
Explanation:
Answer: Energy consumption has outpaced the population growth because of helpful inventions like bulb and automobiles.
Explanation:
During the past 150 years the in the United states the energy consumption has increased a lot. As global population grew from about 500 million to 7 billion.
The energy consumption has outpaced the population the population growth. This has increased the carrying capacity and allowed the population to grow exponentially.
There has been many invention like bulbs and automobiles that helped in population growth.
What is the difference between being a night person and a morning person
A night person is more active and awake at night whilst a morning person is the opposite.
Answer:
Night owls tend to stay up later at night (given the name) and it is harder for them to wake in the morning or early in the morning.
Explanation:
through what structures does food pass as it moves through a frog's digestive tract
The frog catches its food using its tongue. After the food is pulled into the mouth of the frog it is crushed into small parts with its maxillary teeth and is swallowed into is pharynx.
What is the digestive system?The digestive system is made up of hollow organs that consist of the mouth, oesophagus, stomach, small intestine, large intestine and anus, sequentially.
The supplementary organs are the liver, pancreas and gall bladder.
Thus, this could be the answer.
To learn more about the digestive tract click here:
https://brainly.com/question/9225480
#SPJ2
Which statement best describes lactic acid fermentation?
A. Lactic acid fermentation is the first step of cellular respiration.
O
B. Lactic acid fermentation is the final step of cellular respiration. .
RE
TO
BERATE
C. In the absence of oxygen, cells release ATP by breaking down
lactose into glucose.
E
DER
LADE
RES
O
D. In the absence of oxygen, cells release ATP by breaking down
glucose into lactate.
AR
Answer:
d. In the absence of oxygen, cells release ATP by breaking down
glucose into lactate is the correct answer.
Explanation:
lactic acid fermentation occur in the absence of oxygen, cells release ATP by breaking down glucose into lactic acid.
lactic acid fermentation is a process in which sugars example ( sucrose, fructose, and glucose) are converted into energy and lactate
when there is not sufficient oxygen available during physical activity and in that case, muscle produces lactic acid to provide energy during a physical workout by a process called lactic acid fermentation that generates ATP in the absence of oxygen and it provides energy to cells.
Which statement about DNA replication is true?
A. Eukaryotes only have one circular chromosome that unwinds at multiple locations.
B. Eukaryotes can only replicate one segment of a chromosome at a time.
C. Prokaryotes can only replicate their single circular chromosome in the nucleus.
D. Prokaryotes only have one origin of replication to initiate replication.
Answer:
D. Prokaryotes only have one origin of replication to initiate replication.
Explanation:
The DNA of prokaryotes is smaller than that of eukaryotes. So, prokaryotes have only one origin of replication. Origin of replication is the region of DNA where the process of DNA replication starts. The helicases recognize and bind to the origin of replication to start the melting of DNA double helix for replication.
DNA replication starts at the single origin of replication and stops at termination in prokaryotes.
Giraffes with short necks tend to be unable to access enough food, while giraffes with long necks can reach more food at the tops of trees. This causes an advantage for giraffes with long necks. How would you explain this?
A. This is an example of a stabilizing selection in which the intermediate form of a trait is advantageous compared to the extreme forms of the trait.
B. This is an example of a disruptive selection in which the population of cacti is divided and well-defined.
C. This is an example of directional selection in which one end of the bell curve is better adapted to its environment than the other end.
D. This is an example of bidirectional selection in which evolutionary pressures from multiple sources encourage an organism to adapt
Answer:
C
Explanation:
Directional selection is one that favors one extreme ends of a trait of a population. In this case the length of the neck in the giraffe population is the trait and the longest necks have an advantage –they gather more food hence have more chances of reaching reproductive age and passing their genes to next generation- and are, therefore, favored best by natural selection pressures that power evolution.
This is an example of directional selection in which one end of the bell curve is better adapted to its environment than the other end.
How is coal obtained to use for energy?
It is mined then crushed into powder so it burns quicker. The heat is used for energy.
Answer:
Coal can be extracted from the earth either by surface mining or underground mining. Once coal has been extracted, it can be used directly (for heating and industrial processes) or to fuel power plants for electricity. If coal is less than 61 meters (200 feet) underground, it can be extracted through surface mining.
2.
Found that bacterial cells contain a molecule (now known as DNA) that transfers genetic material from one cell to another:
Walter Sutton
Gregor Mendel
Frederick Griffith
Thomas Hunt Morgan
Frederick Griffith found that bacterial cells contain a molecule (now known as DNA) that transfers genetic material from one cell to another. Hence option C is correct.
Griffith was researching two strains of the pneumonia-causing bacteria Streptococcus pneumoniae in 1928. While one strain proved lethal, the other was safe.
Griffith discovered that a mouse would perish if it was injected with a combination of the dangerous strain and the innocuous strain that had been heat-killed.
Griffith came to the conclusion that the innocuous strain had acquired certain characteristics from the heat-killed lethal strain. This chemical is a "transforming principle," he said.
Oswald Avery, Colin MacLeod, and Maclyn McCarty discovered DNA in 1944 and used it to extract the transforming principle. Their research established DNA as the genetic constituent of cells.
To know more about genetic material:
https://brainly.com/question/14530382
#SPJ2
The diagram below represents the time a cell spends in the two main phases of
the cell cycle. In which phase does a cell spend less time?
Option D. The cell is dividing.
The two main phases are interphase and mitosis
As far as my knowledge goes, the yellow area is mitosis, and mitosis is a process of cell division that results in two new nuclei (each containing a complete copy of the parental chromosomes).
The cell cycle is a series of events that leads to the development of two daughter cells from a parent cell. The two main phases of the cell cycle are interphase and mitosis. Interphase is the longest phase of the cell, while mitosis takes much less time than interphase.
During the interphase cell prepares for division and replicates its DNA, while the mitotic phase involves actual cell division. During mitosis, division of the nucleus and cytoplasm takes place to form two daughter cells.
What are the cell cycle's 4 stages?The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up the interphase, which accounts for the span between cell divisions.
Learn more about the cell cycle at
https://brainly.com/question/8283140
#SPJ2
Most of the major advances in marine biology have come in the last 200 years. What do you think are the reasons for this?
Marine biology involves the study of the behavior, and interaction of marine organisms. Marine biology advancements occurred in the last 200 years due to innovations and the development of new technologies.
What is marine biology?Marine biology is the branch of biology that is a field of study that deals with marine life, its behavior, interaction, community, and ecosystem. It includes the study of both biotic and abiotic factors.
Marine biology has seen major advances in the last 200 years as there has been an increase in the development of cutting-edge technologies and inventions that have made research in deep oceans easier.
The innovations of the new tools and machines have enabled the researchers to go deep into oceans and allowed them to conclude the experiment with various techniques and machines.
Therefore, the advancement in technologies has increased the research on oceans and seas.
Learn more about marine biology, here:
https://brainly.com/question/11679506
#SPJ2
Major advances in marine biology are due to technological and scientific innovations, a shift in fisheries management towards conservation, and increased research funding. The influence of key historical figures also contributed to the development of the field.
The significant advancements in marine biology over the last 200 years can be attributed to several factors. One of the key reasons is the integration of technology and engineering into biological studies, which has revolutionized research processes and outcomes in marine ecosystems. Furthermore, as a response to the marked declines in fish populations and shifts in marine food webs over the past half-century, there has been an evolution in fisheries science and management, transitioning from purely commercial exploitation towards a more holistic, conservation-focused approach.
Advancements in bioinformatics and methodological techniques, largely driven by the biomedical field, have also made a considerable impact on marine biology. There is now a heightened awareness and respect for the complex and rich biodiversity in our oceans, which is catalyzed by the development of high-tech equipment and increased funding for studies exploring marine biodiversity, such as animal-microbiome interactions. This is complemented by the recognition that marine animals offer valuable models for studying resilience and adaptations in changing oceanic conditions.
What tests were able to determine when continental crust was formed? A. Potassium-argon dating and half-life isotopes B. Relative dating and carbon-prototyping C. Stratigraphic measurement and argon-aluminum dating D. Stratigraphic measurement and strontium-rubidium dating
Stratigraphic measurement and strontium-rubidium dating are the tests that can determine when continental crust was formed.
Explanation:The correct answer is D. Stratigraphic measurement and strontium-rubidium dating. Stratigraphic measurement is the study of rock layers and the sequence in which they were formed. It can provide information about the relative ages of rocks. Strontium-rubidium dating is a radiometric dating technique that uses the decay of rubidium-87 into strontium-87 to determine the age of rocks and minerals.
Stratigraphic Measurement: This method involves studying the sequence and layering of rocks (strata) in a particular area. It relies on the principle of superposition, which states that in an undisturbed sequence of rock layers, the oldest rocks are at the bottom, and the youngest are at the top. By analyzing the relative positions of different rock layers and the fossils contained within them (biostratigraphy), geologists can establish a relative timeline of when these layers were formed. It helps determine the relative order of events without providing specific numerical ages.
Final answer:
Potassium-argon dating and half-life isotopes (A) are methods used to determine the age of continental crust, especially effective in dating volcanic rocks and older formations.
Explanation:
The formation age of continental crust can be determined through various radiometric dating techniques. The correct answer to the student's question is A. Potassium-argon dating and half-life isotopes. These methods are based on the principle that some radioactive isotopes decay at a constant rate over time. Potassium-argon dating is particularly useful for dating volcanic rocks, as potassium-40 decays into argon-40 with a known half-life. Another key method mentioned, the rubidium-strontium dating, which uses the decay of rubidium-87 to strontium-87, is also effective in dating older rock formations.
Rubidium-strontium dating is not explicitly listed in the options, but it's within the spirit of the given data, illustrating that these techniques measure the age of rocks by analyzing isotope ratios. The data collected on rubidium and strontium isotopes from the Isua region in Greenland, for example, can be used to date the rocks by examining the decay of these isotopes.
A population of white, grey, and black lizards lives on a volcanic island, and each phenotypic color has an equal chance of survival. However, after the latest
volcanic eruption, 75 percent of the island was covered with volcanic ash and hardened lava flows. This event caused the black lizards to be naturally selected
over the white and grey lizards. This change is an example of what type of microevolution?
A) stabilizing selection
B) normal distribution
C) directional selection
D) disruptive selection
I would say disruptive selection, because the sudden eruption of the volcano disrupted the circumstances of the lizards, allowing the black ones to survive better because of camouflage against the black rock.
Hope this helps!
The change in the lizard population after the volcanic eruption is an example of directional selection, where the environment favors one extreme phenotype, leading to a genetic shift.
The scenario where a volcanic eruption on an island causes the environment to change in a way that favors black lizards over white and grey lizards for survival is an example of directional selection. This type of natural selection happens when environmental changes favor phenotypes at one extreme of the existing variation within a population. In this case, the black lizards are naturally selected because they are better camouflaged in the environment covered with volcanic ash and hardened lava flows, thereby increasing their chances of survival and reproduction. This results in a shift in the population's genetic variance toward the darker, fit phenotype.