Answer:
DNA
Explanation:
Answer:
DNA
Explanation:The DNA stripped of its protein is known to carry genetic information and to determine details of proteins produced in the cytoplasm of cells; the proteins in nucleoprotein regulate the shape, behaviour, and activities of the chromosomes themselves. The other major nucleic acid is ribonucleic acid (RNA). (can i have brainliest i have a test coming and i need points to study )
Summarize the two stages of cellular respiration. Be sure to explain where in the cell each stage occurs.
Answer:
Sample Response: The first stage of cellular respiration occurs in the cytoplasm. This is where glucose is broken down into smaller molecules. A small amount of energy is also released. The second stage occurs in the mitochondrion. This is where the small molecules combine with oxygen to produce water, carbon dioxide, and a large amount of energy.
Explanation:
Cellular respiration occurs in two main stages: glycolysis in the cytoplasm, and the Krebs cycle followed by electron transport in the mitochondria. Glycolysis splits glucose into pyruvate, while the Krebs cycle and electron transport chain produce a substantial amount of ATP with oxygen as the final electron acceptor.
Explanation:Stages of Cellular RespirationCellular respiration is a complex process by which cells convert glucose into energy in the form of ATP. It can be summarized in two main stages: glycolysis and the Krebs cycle followed by electron transport.
GlycolysisThe first stage, glycolysis, occurs in the cytoplasm of the cell. During glycolysis, a single glucose molecule is broken down into two molecules of pyruvate. This step does not require oxygen and produces a small net gain of ATP.
Krebs Cycle and Electron TransportThe second stage starts with the transformation of pyruvate to Acetyl-CoA, which then enters the Krebs cycle within the mitochondria. This cycle completes the oxidation of glucose derivatives, producing CO₂, NADH, and FADH₂.
These high-energy carriers then donate electrons to the electron transport chain in the inner mitochondrial membrane, where a significant amount of ATP is produced. Oxygen is the final electron acceptor in this process, forming water.
In summary, while glycolysis happens in the cytoplasm, the Krebs cycle and electron transport are centered in the mitochondria, with the latter two stages requiring oxygen.
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which enzyme is mixed with a DNA sample before gel electrophoresis
Answer:
Restriction enzyme
Explanation:
Gel electrophoresis is a process or a technique in which fragments of DNA are separated in terms of their sizes.The restriction enzyme is mixed with a DNA sample before the process. The restriction enzyme cut DNA at specific points into fragments which can then be separated based on their sizes on an agarose gel.When current is applied to the gel DNA move towards the positively charged electrode since DNA is negatively charged, with shorter fragments migrating faster through the gel in comparison with large fragments.A biologist counts the number of zebras in a population each year, and notices an increase in the zebra population. Which describes the biologist’s actions? graphing inference observation interacting
Answer:
The correct option is OBSERVATION.
Explanation:
Observation is a scientific method by which one actively acquire information from a primary source. In scientific investigation, observation usually involves using of senses and recording of essential data measured by scientific instruments. In the scenario given in this question, the counting and the recording of the zebra population on a yearly basis by the scientist is an example of observation.
The correct answer is C) Observation.
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A future offspring has just been conceived. When does it have the highest level of potency?
A. Pluripotency
B. Multipotency
C. Totipotency
D. Unipotency
Answer:
C
Explanation:
A totipotent cell can differentiate into any type of cell and is the potency with the highest differentiation potential. It is then followed by pluripotency, multipotency, then unipotency. The ability of a cell to have differentiation potential is governed by the ability of its silenced genes to be easily reactivated.
3.a An antibiotic is added to a large population of bacteria. Explain why not all bacteria die?
b. If the antibiotic remains at constant levels, eventually there will be a large population of bacteria again. Explain why?
Answer: Antibiotic Resistant Mutation
Explanation: Not all of the bacteria die because there are individuals in the population that have an antibiotic resistant mutation, which causes them to be adapted to dealing with the antibiotic. There will be a large population of bacteria again because the ones with the mutation survive, reproduce, and pass the antibiotic resistance trait on.
Which of Mendel’s laws or principles of inheritance can be explained by the diagram? dominance independent assortment segregation genetics
Answer:
C) segregation because The principles that govern heredity were discovered by a monk named Gregor Mendel in the 1860's. One of these principles, now called Mendel's law of segregation, states that allele pairs separate or segregate during gamete formation, and randomly unite at fertilization.
Explanation:
Answer:
segregation
Ex: Got it right on eng
Order the taxa from largest (first) to smallest (eighth).
1. first
5
domain
2. second
6
family
3. third
3
class
4. fourth
7
genus
5. fifth
1
kingdom
6. sixth
2
species
7. seventh
4
order
8. eighth
8
phylum/division
Answer:
Domain→Kingdom→Phylum→Class→Order→Family→Genus→Species
Explanation:
A mnemonic that might be good to remember would be:
Determined King Philip Came Over From Great Spain
Following the first letters, it will help you remember the order of taxa from largest to smallest.
Domain is the largest among the taxonomic ranks which categorizes the organisms based on cell-type. (prokaryota or eukaryota)
Kingdom is a little more specific and there are 6 known kingdoms. (i.e. Animalia, plantae, eubacteria, Archeabacteria, Fungi, and Protista)
Under each kingdom, the organisms are further subcategorized based on similar characteristics that make them different from other organisms found in the same kingdom.
Under each phylum they are further categorized based on more specific traits and the rest follows, getting more specific at each level.
Geologists conclude that the clasts in Layer A are older than the layer itself. Which geologic principle do the geologists use to draw this conclusion?
Answer:
C. Principle of inclusion
Explanation:
One of the principles used to date a rock relatively is using "principle of inclusion".
The principle of inclusion states that " the fragments included in the host rock are older than the rock itself".
The fragment of rocks in the sedimentary layer A are older than the rock layers itself. If we encounter the main rock where the fragment is derieved is older than layer A itself.
The principle asserts that for us to have those fragments of rocks in the layer A, the fragments must have been derieved from rocks that have already formed. Therefore, that rock is older than the sedimentary layer.
Principle of original horizontality states that "beds of sedimentary rocks formed as horizontal or horizontal layers".
Principle of superposition states that "in an undeformed or undisturbed sedimentary sequence, the older rock is at the bottom of the sequence".
Which structure is represented by the X?
The picture represents the respiratory system.
O
the pharynx
the larynx
o
the trachea
the bronchus
Ans. C. as the man above said its C, the trachea, this is true, im also taking the test and i looked up the body system and thats where the trachea is, were x is
C.
C.
Answer is C.
Answer:
c. the trachea
Explanation:
I took it on edge 2022
Describe the role of enzymes and the cell cycle
Answer: Cyclins are named such because they undergo a constant cycle of synthesis and degradation during cell division. When cyclins are synthesized, they act as an activating protein and bind to Cdks forming a cyclin-Cdk complex. This complex then acts as a signal to the cell to pass to the next cell cycle phase.
Explanation: Cyclins are named such because they undergo a constant cycle of synthesis and degradation during cell division. When cyclins are synthesized, they act as an activating protein and bind to Cdks forming a cyclin-Cdk complex. This complex then acts as a signal to the cell to pass to the next cell cycle phase.
Which of the following statements is true :A. In mutualism only one species benefits from cooperation , B. mutualism is a special type of interspecies competition C. Growing large root systems is one way plants compete for water , D. food is the most important resource for plants
Answer:
C. Growing large root systems is one way plants compete for water
Explanation:
Mutualism is not between a species, so B is wrong. It also benefits both species, so A is wrong.
Answer:
C. Growing large root systems is one way plants compete for water
Explanation:
In mutualism, both species involved are benefited. Then, both options A and B are incorrect.
The most important resources for plants are water, sunlight and soil minerals. Then, option D is incorrect.
Scientists first found dinosaur fossils about 1820. The fossils suggested that dinosaurs were large, slow, reptiles. This view was widely accepted for decades. However, in 1960, scientists began to challenge the idea. More recently, several findings showed that some dinosaurs were closely related to birds, and had active, agile bodies.
Which conclusion is BEST supported by this information?
A) Most of the early dinosaur fossils were likely fakes.
B) The earlier ideas of dinosaur fossils were unscientific.
C) Scientists have had to revise accepted ideas of dinosaur biology. D) Scientists interpreted the available fossil evidence wrongly until 1960.
c) scientists have had to revise accepted ideas of dinosaurs biology
The conclusion that is best supported by this information is that scientists have had to revise accepted ideas about dinosaur biology, which is option c.
What do scientists think about this?"Scientists have had to revise accepted ideas of dinosaur biology." The information provided describes how the scientific understanding of dinosaurs has changed over time. When dinosaur fossils were first discovered in the 1820s, scientists believed that they were large, slow reptiles. However, in the 1960s, this idea was challenged, and later findings showed that some dinosaurs were agile and related to birds. This demonstrates that scientists have had to revise their ideas about dinosaur biology as new information becomes available.
Hence, the conclusion that is best supported by this information is that scientists have had to revise accepted ideas of dinosaur biology, which is option c.
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How did cyanobacteria affect Earth's early atmosphere?
A.
They replaced oxygen with carbon dioxide in the atmosphere.
B.
They eliminated the harmful ultraviolet rays of the Sun.
C.
They replaced carbon dioxide with oxygen in the atmosphere.
D.
They absorbed ozone molecules from the atmosphere.
Answer:
The correct answer is option - C. They replaced carbon dioxide with oxygen in the atmosphere.
Explanation:
Cyanobacteria or Blue-green algae is a group of bacteria that is making its own food using water and carbon dioxide in the presence of sunlight, the process of photosynthesis
These organisms release oxygen as a byproduct of photosynthesis in the atmosphere. Through this process, these organisms replaced carbon dioxide with oxygen in the atmosphere in the early earth.
Thus, the correct answer is option C. They replaced carbon dioxide with oxygen in the atmosphere.
What are some characteristics of adaptive social behavior ? Check all that apply.
Final answer:
Characteristics of adaptive social behavior in humans include Prosocial Behavior, Reciprocal Altruism, and the principle of Reciprocity. These traits enable humans to form complex social structures, interact positively with others, and maintain cultural norms.
Explanation:
Adaptive social behavior includes a range of traits and skills that enhance interpersonal interactions and the survival and success of a species within a social context. Some important characteristics of adaptive social behavior in humans are: Prosocial Behavior, which is behavior that is positive, helpful, and intended to promote social acceptance and friendship. Reciprocal Altruism involves individuals helping each other with the expectation that the favor will be returned in the future. This is underpinned by the principle of Reciprocity, where there is a mutual give-and-take in social interactions.
When defining an organism, important behaviors include the ability to maintain a stable internal environment (homeostasis), respond to environmental stimuli, grow and reproduce. These traits apply to both uni-and multicellular organisms. Species recognition is also critical, as it allows an organism to differentiate between members of its own species and those of others for purposes like mating and social interaction.
Humans as a species exhibit high levels of sociality, tending to form complex social structures that include elements of both cooperation and competition. Human social behavior also includes the ability to adapt to cultural norms and to engage in complex communicative behaviors.
a group of genes that operate together are known as
A group of genes that operate together are known as chromosomes.
Chromosomes I believe, hope that helps!
While viewing a topographic map, you notice a region in which the contour lines are very close together. What can you conclude about this region?
Answer:that means there's a short distance between places with different elevations
Explanation:basically when the contours are closer that means that the slope is steep. The contour intervals tell the vertical distance between each line by counting the number of contours of neighboring lines and multiplying it with contour intervals we can calculate the elevation of any line
Answer: It means it has a steep incline!
Explanation:
Because contour lines join points of equal elevation and the closer together those lines are, the steeper the slope.
Your cousin returns from a trip to caves from around the globe. He shows you some snot-like
material and states that it is alive. When you put it under the microscope, it is not made of
cells. It is not alive.
Answer:
false because all living things are made of a cell or many cells. when it went under the microscope, it did not have cells so therefore, its not alive.
Which of the following technological developments first allowed humans to successfully travel to outer space and back
Rockets were the key technology enabling human space travel, with the Soviet launch of Sputnik representing a major advancement in space exploration.
Rockets were the technological development that first allowed humans to successfully travel to outer space and back. The Saturn V rocket, like the one used in the Apollo 11 mission in 1969, was crucial in this achievement. In October 1957, the Soviets launched Sputnik, the world's first human-made satellite, using an ICBM launch vehicle, marking a significant milestone in space exploration.
The first case of using two words as a scientific name _____.
was introduced by John Ray
was introduced during the Renaissance
was introduced by the Greeks
Answer: The first case of using two words as a scientific name was introduced by John Ray, he was an english naturalist of the XVII century. He used complex terms composed by two words to describe the species.
Explanation:
The use of two words as a scientific name was introduced by Carl Linnaeus, who established the binomial nomenclature system in the 18th century. This system, using Latin or Greek words for genus and species, provides a unique and universally recognized name for each species.
The first case of using two words as a scientific name was introduced by Carl Linnaeus, who established the binomial nomenclature system. The binomial naming system consists of two unique names: the genus name and the species name. Both are crucial in scientifically identifying and classifying species to avoid confusion caused by common names, which may vary by region.
Before Linnaeus, the use of common names was prevalent, but it was prone to errors and inconsistencies due to regional variations. Linnaeus' system uses two Latin- or Greek-form words: the first name representing the genus and capitalized, and the second name indicating the species in lower-case. For example, Homo sapiens is the binomial name for humans, and Cyanocitta cristata is the binomial for the North American blue jay.
While John Ray contributed significantly to the definition of species and Caspar Bauhin took steps towards a two-word naming system, the binomial nomenclature was solidified and popularized by Linnaeus in the 18th century, ensuring a uniform and global recognition of species.
A volcano erupted and covered the surrounding area with lava and ash, destroying the plant life and remaining soil. Life eventually returned to this area and began to go through ecological succession.
Describe some of the characteristics of plants in the first stages of primary succession.
Explain what must happen in the area so that plants would be able to colonize the area again.
The first plants that will start to flourish in the area would be the ones that do not require soil for their growth, and are perfectly satisfied with getting lot of sunlight, thus the pioneers will be the mosses and the lichens. As there will be more and more mosses and lichens, the area will start to be dominated by them, and as some of them die, they will decompose, slowly changing the rocks, and giving birth to the new soil. Initially the soil will be very thin, so only plants with low requirements will be able to grow, mostly short grasses. The small grasses though will contribute to much higher amounts of biomass, so the soil will be becoming deeper and more fertile as the time passes. Than the shrubs will be able to grow in this area, and as they too will contribute to larger amounts of biomass, and making the soil deeper and more fertile, the trees will come at least and spread out in the area.
Why might so many different methods be needed to study DNA and genes
Answer:
So many different methods might be needed to study DNA because DNA is a small structure, and having different methods to view it allows different parts to be viewed.
Explanation: Hope this helps. Please name me brainliest
The seismic waves in a 7.5 magnitude earthquake are ___ times larger than those in a 6.5 magnitude earthquake.
Answer:10x
Explanation:
According to the law of conservation of energy, energy can neither be created nor destroyed. If this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?
While the total amount of energy remains constant as per the law of conservation of energy, the energy available within an ecosystem decreases as you move up the energy pyramid due to loss of energy as heat in metabolic processes.
Explanation:According to the law of conservation of energy, energy cannot be created or destroyed. However, when energy is transferred through the trophic levels from the producer (at the bottom of the energy pyramid) to consumers (at the top), some energy is lost as heat due to metabolic processes like respiration. This loss of energy explains why there is less energy at the top of an energy pyramid compared to the bottom. Only about 10% of the energy is transferred from one trophic level to the next, a concept referred to as the 10% rule in ecology. Therefore, while the total amount of energy remains constant (as dictated by the law of conservation), the available energy within a given ecosystem decreases as you move up the energy pyramid.
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Energy decreases at each trophic level of an energy pyramid because it's used for life processes and lost as heat; not all consumed biomass is assimilated.
The law of conservation of energy stipulates that energy in the universe is constant - it cannot be created or destroyed, but only change forms. In an energy pyramid, the reason there is less energy at the top compared to the bottom is due to energy transformations and losses. As energy moves up the pyramid from one trophic level to the next, some of it is used for life processes, such as movement and respiration, and is released as heat into the environment. Additionally, not all parts of an organism are consumed by the next level, and not everything consumed is fully digested or assimilated. These factors contribute to the decrease of available energy as one moves up the trophic levels.
Describe how minerals form in diagram C
Answer:
Explanation:
C is a volcano.
A volcano is as a result of igneous activities.
Volcanoes are landforms formed by the extrusion of magma on the earth crust.
Magma that reached the crust is called a lava and it is made up of molten rock minerals.
When the lava cools, it forms the rocks we see on the crust.
The mechanism by which minerals forms in a melt is known as differentiation. Differentiation is the process by which minerals separates from an originally uniform mixture. As temperature varies within the earth, new minerals forms by combining elements and others are broken down.
In a Volcano, the melt is the mineral soup. The melt is at a very high temperature. As it rises through the vent to the surface, temperature decreases very rapidly. When temperature reduces rapidly, it is difficult for large minerals to form. Minerals crystallise out of the melt according to the Bowen's reaction series and the composition of the melt.
We must note that, as the melt rises through the crust, it assimilates some crustal materials. Some of these materials can change the original composition of the melt as it rises. If such a melt orginates from the mantle, it mixes with crustal rocks and forms a rock bearing some mafic and felsic minerals.
It is typical to find fine grained rocks that lacks crystals in such a place. This is because the cooling of the melt was rapid and crystals could not form properly.
Minerals are formed when transition metals bond with other elements, often through the ions' formation process. Examples of these processes include the creation of mineral crystals in bone through the bonding of calcium and phosphorus, and the formation of ionic compounds. Ionic compound formation typically involves metals losing electrons and nonmetals gaining electrons to achieve a stable electron configuration.
Explanation:Minerals such as malachite, azurite, and proustite form when transition metals bond with other elements and create complexes. This process involves the formation of ions. For instance, atoms may lose or gain electrons, forming cations (positively charged ions) or anions (negatively charged ions) respectively. An example of this is the sodium atom losing electrons to form a sodium ion, or calcium forming a calcium cation.
In the specific case of calcium, it can bond with elements such as phosphorus to produce mineral crystals found in structures like bones. Another example of a chemical reaction involving calcium is the formation of solid calcium hydroxide from the reaction of solid calcium oxide with liquid water.
The formation of ionic compounds, wherein metals lose electrons and nonmetals gain electrons to achieve an octet, is also crucial in the formation of minerals. Lewis symbols often illustrate these electron transfers.
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What is the equation for the chemical reaction of cellular respiration?
Answer:
See picture below for the equation.
Which best explains what would happen to the muscular system if the digestive system broke down? A. No carbon dioxide would be available to the cells, and the organism would die. B. An increase in wastes would be sent to each cell, and they would become infected. C. Oxygen would not be removed, and the muscles would not be able to move. D. No energy would be available to the cells, and the organism would not be able to move.
Answer:
D. No energy would be available to the cells, and the organism would not be able to move.
Explanation:
Function of digestive system is to breakdown the nutrients into the simpler elements which in turn are absorbed by cells. These simpler elements, such as glucose, amino acids etc, serve enter the cellular respiration. Cellular respiration is the process of complete oxidation of nutrients to drive ATP synthesis. If digestive system breaks down, processes of digestion of food and cellular respiration would not occur. This would hamper the supply of ATP to muscles and the organism will not be able to move in absence of muscle movement.
What causes air masses to move?
A difference in air pressure and temperature occurs.
Weather conditions change rapidly to produce storms.
A collision takes place between two natural wind patterns.
Long, narrow bands of wind blow in the upper atmosphere
Answer:
I am pretty sure that the answer is C)A collision takes place between two natural wind patterns.
Explanation:
I am doing the edg test right now i will comment if it is right or not when i am finished. hope this helps
Answer:
air pressure differences
Explanation:
What happens in the process of natural selection?
Answer:
an organism would adapt to its environment to survive and in artificial selection the most desirable characteristics are chosen
Explanation:
Natural selection, a mechanism of evolution, occurs when individuals with certain heritable traits survive and reproduce more effectively than others in a specific environment. This process involves variation within species, competition for resources, survival of the fittest, and gradual evolutionary change.
Explanation:The process of natural selection is a key mechanism of evolution, proposed by Charles Darwin, stating that species change over time and space. It operates based on competition, variation, and inheritance. Natural selection occurs when individuals with certain heritable traits survive and reproduce more effectively than others in a specific environment. Here's how it majorly unfolds:
Variation: Individuals within a species demonstrate a wide range of variations in their traits. This genetic diversity occurs due to mutation and sexual reproduction.Competition: Since resources such as food, water, and shelter are limited, there is an inevitable competition for survival.Survival of the Fittest: Individuals with traits better adapted to the environment have a better chance of survival and thus, are more likely to reproduce successfully. These traits then get passed on to the next generation.Evolution: Over generations, these advantageous traits become more common within the population, causing an evolutionary change.Learn more about Natural Selection here:https://brainly.com/question/32227158
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8. Which process is responsible for destroying shorelines along seawalls near urban areas?
O A. Groundwater infiltration
O B. Erosion
O C. Deposition
O D. Eutrophication
Answer: B. Erosion
Explanation:
Erosion is a process of removal of top and sub-surface layers of the soil and depositing them to other location. It is caused by physical agents such as water, wind and others.
Among the options given, erosion is the correct option this is because of the fact that erosion due to water will remove the sand and seawalls present on the shorelines. This can only be caused by seawater with high speed water currents.
Erosion is the process responsible for destroying shorelines near seawalls in urban areas, as it is exacerbated by human-made structures that interrupt natural sand replenishment. The correct option is B.
The process responsible for destroying shorelines along seawalls near urban areas is erosion. This happens when natural littoral processes like longshore drift are disrupted by human-made structures such as groins or seawalls. These structures can prevent sand from naturally replenishing shorelines and may lead to increased erosion downstream from these barriers. Erosion near the toe of seawalls is specifically caused when the natural replacement of sand is inhibited, leading to a loss of beach material and the decay of coastlines. This issue is often exacerbated in urban areas where coastal development pressures are high, and human interference with shoreline processes can be significant.
What is the number of species present in an ecological community known as?
Species __________ is the number of species present in an ecological community.
Answer:
spices richness
Explanation:
Species richness refers to the total number of different species present in a specific area or community