Answer:
C. Cytokinesis
Explanation:
During the cell cycle, the division of cytoplasm (cytokinesis) is followed by the division of the nucleus (karyokinesis). Cytokinesis is occurred differently in plant cells and in animal cells during cell division. In animal cells, the plasma membrane of the parent cell pinches inward along the cell’s equator until two daughter cells are formed whereas, in plant cells, cytokinesis takes place by a cell plate formation
In mitosis during cytokinesis phase the cell pinches off and divide into two daughter cells .The correct option is C.
In cell biology, mitosis is a part of the cell cycle in which replicated chromosomes are separated into two new nuclei. Cell division by mitosis gives rise to genetically identical cells in which the total number of chromosomes is maintained. Therefore, mitosis is also known as equational division.
In general, mitosis is preceded by S phase of interphase and is often followed by telophase and cytokinesis; which divides the cytoplasm, organelles and cell membrane of one cell into two new cells containing roughly equal shares of these cellular components. The different stages of mitosis altogether define the mitotic (M) phase of an animal cell cycle. In cytokinesis,the cell pinches off and divide into two daughter cells in mitosis.
Thus, the cell pinch off and divide into two daughter cells in mitosis during cytokinesis. The correct option is C.
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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".
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.
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
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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if the water concentration inside a cell is higher than the water concentration outside the cell, water flows out of the cell. this method of molecular transport is called
Answer:
Exosmosis
Explanation:
Osmosis is the process of movement of water down the concentration gradient across a semi permeable membrane. Exosmosis is movement of water outside the cell through osmosis. Here, the water movement is shown to occur from the region of its higher concentration (inside the cell) to that of lower concentration (outside the cell). Plasma membrane serves as semi permeable membrane. So, the process is called as "exosmosis" with respect to cell.
The process where water flows out of a cell when the water concentration inside is higher than outside is called osmosis, a type of passive transport. This movement of water occurs through a semi-permeable membrane and is facilitated by proteins called aquaporins. It aims to balance water concentration inside and outside the cell.
Explanation:The method of molecular transport you've described, where water flows out of a cell when the water concentration inside it is higher than the water concentration outside, is known as osmosis. This process is a type of passive transport as it doesn't require any energy, instead, it relies on the natural tendency of water to move from regions of higher concentration to areas of lower concentration, via a semi-permeable membrane, in order to achieve balance.
This transportation is facilitated by aquaporins, which are proteins that form water channels in the cell membrane, enabling water to move more easily. Cells often expose themselves to an isotonic environment – one where the concentration of solutes is equal both inside and outside the cells, which keeps the concentration of water molecules the same as well and helps cells maintain their normal shape and function.
But when cells are placed in a hypertonic solution – one where the concentration of solutes is higher outside the cell compared to inside, water moves out of the cell to balance the concentrations, causing the cell to shrink, which is known as plasmolysis.
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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.
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
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.
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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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
If Luke pushes his sister in a wagon down the driveway that is 14 meters long and it takes 22 Newtons of force, how much work did he do? 20 points !!
Answer:
[tex]308 N\cdot m[/tex] or 308 J
Explanation:
Work in physics is done when an object is moved due to an applied force. But you need to remember that work is only done if there is movement parallel to the direction of the force applied.
Work can be computed with the formula:
W=Fd
Where:
F = Force
d= distance
So your problem gives you:
F = 22 N (Newtos)
d = 14 m (meters)
All you need to do is plug in the values and multiply:
W = F x d
W = 22N x 14m
W = 308 N-m or 308 J (Joules)
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.
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:
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.
What is the equation for the chemical reaction of cellular respiration?
Answer:
See picture below for the equation.
how can eDNA technology could be misleading
The research on eDNA initiated in microbiology, recognizing that culture-based methods grossly misrepresent the microbial diversity in nature. Subsequently, as a method to assess the diversity of macro-organismal communities, eDNA was first analyzed in sediments, revealing DNA from extinct and extant animals and plants, but has since been obtained from various terrestrial and aquatic environmental samples. Results from eDNA approaches have provided valuable insights to the study of ancient environments and proven useful for monitoring contemporary biodiversity in terrestrial and aquatic ecosystems.
The seismic waves in a 7.5 magnitude earthquake are ___ times larger than those in a 6.5 magnitude earthquake.
Answer:10x
Explanation:
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.
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!
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Assignment water and oceans graphic organizer exploration k12
1. Where does the energy that causes evaporation come from
2. What role does gravity play in the water cycle?
3. Describe the flow of one molecule of water through the water cycle, beginning in the ocean.
Answer:
1 Sun/ Solar
2- Allowing precipitation to fall
3- The water in the ocean gets enough sun one day and it evaporates and forms into a cloud. The cloud then relocates over the nearby land. The cloud becomes too dense with water vapor and gravity carries the water down as precipitation, most likely rain or snow. It then flows through little streams and back into the ocean to restart the process.
Answer:
1. In my point of view, I think the energy that causes evaporation comes from the sun. The sun is what heats the water and makes tiny vapors evaporate into the air which forms clouds.
2. Earth's gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill. It basically pulls water and precipitation downhill until it connects to a river which eventually runs into an ocean. It allows precipitation to fall.
3. The water in the ocean gets enough sun one day and it evaporates and forms into a cloud. The cloud then relocates over the nearby land. The cloud becomes too dense with water vapor and gravity carries the water down as precipitation, most likely rain or snow. It then flows through little streams and back into the ocean to restart the process.
Hope this helped!
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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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.
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.
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 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
What are intrinsic controls also called
A)homozygous
B)external
C)local
D)none of the above
Answer
The answer is C.
Intrinsic controls, also known as local controls, are mechanisms that regulate a physiological process from within the organ or tissue itself. They help maintain homeostasis and are influenced by factors like chemical concentrations and temperature.
Intrinsic controls, also known as local controls, refer to the mechanisms that regulate a physiological process from within the organ or tissue itself. These controls help maintain homeostasis and ensure proper functioning of the organ or tissue. They can include factors such as local chemical concentrations, temperature, pH, and pressure.
For example, in the context of blood flow, intrinsic controls can regulate the diameter of blood vessels in response to changes in local oxygen or nutrient levels. These controls help to direct blood flow to areas that need it the most.
Therefore, the correct answer is C) local.
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The amount of matter in the Earth system remains constant over time. The forms and locations of the matter stored within the system, however, change continually as it cycles through the Earth.Matter can be transferred between which of the following elements of the Earth system?
A. from the physical environment to living organisms
B. from living organisms to the physical environment
C. from one living organism to another living organism
D. all of these
Answer:
The ANSWER is D. All of these
Explanation:
I just took the test and got it right!!!!! I HOPE THAT THIS HELPS YOU OUT A LITTLE!!!!!
Answer: D
Explanation:
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.
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.