Lactic acid fermentation occurs in
a.) any environment where oxygen is present
b.) yeast cells
c.) the mitochondria of plant cells
d.) muscle cells
Answers
Related Questions
Read the passage about bird food and bird watching.
Noted scientist Dr. Elsa Birde described the effect of adding a mixture of dried apples and raisins to the previous feed of sunflower seeds, millet, thistle seed, and cracked corn in bird feeders in her yard. Over three years, Dr. Birde observed that the new mixture increased the number of songbirds at her feeders, especially during the months of April and May. As she has done for several years, Dr. Birde recorded, at the same time each day, the number of birds at each of her four feeders. She noted that the third year using the mixture coincided with the largest increase. There was a twenty-five percent increase in the number of songbirds over times when this mixture was not used. Dr. Birde also noted that in the third year she used a specific ratio of the ingredients, carefully measuring, which she had not done in previous years. The third year also had a warmer than normal spring, and a construction project began in a neighborhood near Dr. Birde’s. Dr. Birde is now going to produce this formula for sale and advertise to customers that they may see the same twenty-five percent increase in songbirds at their feeders.
Dr. E. Birde, Journal of Scientific Bird Feeding
Which scientific claim can be made?
Songbird numbers will increase due to the effects of climate change increasing global temperatures.
Songbirds appear more often in April and May.
With an increase in construction, songbirds will move from one neighborhood to another.
A study by Dr. Birde showed that the number of songbirds in her yard increased due to a modified food source.
Answers
The scientific claim that can be made is: A study by Dr. Birde showed that the number of songbirds in her yard increased due to a modified food sources.
Define food sources ?
A food source refers to any material or substance that is consumed by an organism for sustenance and growth.
The passage describes a study conducted by Dr. Elsa Birde on the effect of adding a mixture of dried apples and raisins to the previous feed of sunflower seeds, millet, thistle seed, and cracked corn in bird feeders in her yard. The study was conducted over three years and Dr. Birde observed that the new mixture increased the number of songbirds at her feeders, especially during the months of April and May. She recorded the number of birds at each of her four feeders at the same time each day and noted that the third year using the mixture coincided with the largest increase. There was a twenty-five percent increase in the number of songbirds over times when this mixture was not used.
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Water pressure
A. is less than air pressure for the same volume of air
B. decreases with depth
C. is about twice as much on a diver at 10m as at the surface
D. is unaffected by atmospheric pressure
Answers
Answer:
lAnnswer letter A.
is less than air pressure to the same volume of air
what does it mean by "outline the role" in biology?
Answers
Answer:Tell the function of the labeled thing.
Explanation:
Explanation: none
7. The diagrams show stages in the passage of water through a plant,
The circles are the starting points for arrows to show the direction in which the water moves.
Which circle must have an arrow pointing downwards only?
Answers
From the understanding of how water moves through plants, the only circle that can have a downward pointing arrow only is A.
Water moves through a plant in the following direction:
Soil ----> root -----> stem ----> leaves
Once water gets into the root from the soil, a conducting tissue known as xylem conducts the water upward through the stem of the plant branching off into the leaves through the petiole. from the petiole, water is then conducted to the mesophyll cells.
Circle D represents the root, so the arrow must be upward.
Circle C represents the stem, the arrow continues upward towards the leaves
Circle A and B represent the leaf. The movement of water within the leaf might requires that it is from circle A to circle B. Hence, the only circle that must have an arrow pointing downward only can only be A.
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Low-viscosity lava Choose one: A. could logically build a composite volcano. B. indicates an area that has high potential for explosive eruptions. C. has low silica content. D. is most often a cool-temperature lava.
Answers
So the correct option is C. Low viscosity lava typically has low silica content, which means it is more fluid and flows easily. This type of lava is associated with effusive eruptions and is commonly found in basaltic.
Viscosity refers to the measure of a fluid's resistance to flow or its internal friction. It is a property that determines the fluid's thickness or stickiness. Viscosity depends on the internal molecular structure of the fluid and the forces between its particles. A high-viscosity fluid is thick and resistant to flow, such as honey or molasses, while a low-viscosity fluid is thin and flows easily, like water. Viscosity plays a crucial role in various fields, including physics, engineering, and geology, influencing phenomena such as fluid dynamics, lubrication, and magma behavior during volcanic eruptions.
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Why must dsRNA viruses package an RNA-dependent RNA polymerase (RdRp) inside their viral capsid?
A. Because all RNA viruses package an RdRp.
B. Because the (+) of RNA in their genome cannot function as mRNA.
C. Because the RdRp converts the RNA to DNA so it can be translated by host ribosomes.
D. dsRNA viruses don't actually package an RdRp.
Answers
The RNA-dependent RNA polymerase (RdRp) is an essential component of many dsRNA viruses. The RdRp is packaged inside the viral capsid because it is required for the virus to replicate its genome.
Correct option is D. dsRNA viruses don't actually package an RdRp.
The RdRp is responsible for converting the dsRNA of the virus into mRNA, which is then translated by host ribosomes into proteins. This is necessary because the double stranded RNA genome of the virus cannot function as mRNA directly.
The RdRp is also responsible for synthesizing viral proteins that are needed for virus assembly, as well as for making copies of the viral genome. Without the RdRp, the virus would not be able to replicate, and therefore would not be able to survive and reproduce. For this reason, it is essential that the RdRp is packaged inside the viral capsid.
Correct option is D.
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Biologists categorize all living things based on related characteristics into large groups called:_________
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"Biologists categorize all living things based on related characteristics into large groups called kingdoms by the process of classification."
Classification is a process used to divide living things into different groups and subgroups based on their shared and unique characters. "Taxonomy refers to the science of biological classification."
The various advantages are:
It facilitates the identification of organisms. It talks about how different species interact with one another. It makes comprehending the evolution of organisms easier. It is advantageous to comprehend the connections between plants, animals, and other living things as well as how they can assist humans. It is possible to comprehend the properties of entire groups of creatures by examining a small number of them.To learn more about characteristics and classification here,
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If you observed the following data what would you assert about the type of selection that has acted on the gene? Show your calculations. You may want to use a codon table Species 1 CTG GCT TTA ACC CGT AGG CTG GCT TTA ACT CGA AGG CCG ACT TTA ACT CGT AGG CTG ACT TTG ACC CGA AGG Species 2 TTG ACC TCA ACC CGT AGC
Answers
To analyze the type of selection that has acted on the gene based on the observed data, we need to compare the frequency of different codons in the two species.
What can be asserted about the type of selection that has acted on the gene based on the observed data?To analyze the type of selection that has acted on the gene based on the observed data, we need to compare the frequency of different codons in the two species.
First, we can calculate the frequency of each codon in Species 1 by counting the number of times each codon appears and dividing it by the total number of codons observed. For example, the frequency of the codon CTG is calculated as:
Frequency of CTG = (Number of CTG codons in Species 1) / (Total number of codons in Species 1)
Second, we can compare the frequencies of corresponding codons between Species 1 and Species 2. If the frequencies of certain codons are significantly different between the two species, it could indicate selection acting on the gene.
Based on the calculated frequencies and their comparison, we can assert the type of selection. For example, if certain codons have significantly higher frequencies in one species compared to the other, it could indicate positive selection favoring those codons.
Conversely, if certain codons have significantly lower frequencies in one species, it could indicate negative selection against those codons.
Without the actual observed data, it is not possible to perform the calculations and provide a detailed explanation of the observed selection on the gene.
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1. For each of the genotypes (letters) listed, write a phenotype (description).
In pea plants, purple flowers are dominant to white.
PP = purple
Pp =
PP =
In guinea pigs, short hair is dominant to long hair.
HH =
Hh =
hh =
Answers
Pp=purple
PP=purple
HH=short hair
Hh=short hair
hh=long hair
during aerobic cellular respiration, oxygen is important because it is the final ___?
Answers
Answer:
Oxygen is the final electron acceptor in aerobic respiration.. Without the presence of oxygen, electrons would remain trapped and bound in the final step of the electron transport chain, preventing further reaction
Explanation:
Which two elements are likely to share electrons?
Answers
Is used to identify the availability of proteins in a type of food?
Answers
There are a number of methods that can be used to identify the availability of proteins in a type of food. Some of the most common methods include Biological methods, Chemical methods, etc.
Biological methods: These methods use living organisms to detect the presence of proteins. One example of a biological method is the Biuret test, which uses copper sulfate to detect the presence of proteins. When copper sulfate is added to a protein solution, it forms a violet-colored complex.
Chemical methods: These methods use chemicals to detect the presence of proteins. One example of a chemical method is the Lowry assay, which uses a reagent that reacts with proteins to form a colored complex. The intensity of the color is proportional to the amount of protein in the sample.
Physical methods: These methods use physical properties of proteins to detect their presence. One example of a physical method is infrared spectroscopy, which measures the absorption of infrared light by proteins. The presence of proteins can be detected by the characteristic absorption bands that they produce.
The method that is used to identify the availability of proteins in a type of food will depend on the specific needs of the analysis. For example, biological methods are often used in clinical settings to detect the presence of proteins in blood or urine samples. Chemical methods are often used in food science to determine the protein content of food products. Physical methods are often used in research settings to study the structure and function of proteins.
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Good Faith laws protect an individual who helps a vitim in the event the vitim takes a tum for the worse before emergeney personnel
arrive.
True
False
Answers
This is true. Good faith laws prevent people from being sued in case they accidentally make someone's injury worse.
The cell membrane controls movement of materials into and out of the cell. The following particles are moving from high concentration to low concentration and are using a carrier protein. How would you describe this type of movement across the membrane?
A. simple osmosis
B. active transport
C. simple diffusion
D. facilitated diffusion and please give a reason why you chose this answer
Answers
Answer:
B. active transport
Explanation:
Answer:
b
Explanation:
because active transport obey the concentration gradient..
How does specialization impact agriculture?
Answers
Answer:
In agriculture specialization, farmers produce one crop instead of so many crops. In other words, the farmers, adopt specialized farming. By doing so they avail all those benefits which are accrued to the big businesses. Hence the goods are produced on a large scale.
i
n this activity you worked with a model to simulate natural selection. In what ways did this activity model natural selec-tion well? What aspects of natural selection did the simulation not include
Answers
The simulation modelled natural selection well by demonstrating basic heritability, competition, concepts of variation, and differential survival. However, it did not include complex aspects nor account for real-world factors.
The activity modelled natural selection well by demonstrating the basic concepts of variation, heritability, competition, and differential survival and reproduction. The simulation allowed for random genetic mutations and simulated environmental pressures that favored certain traits over others.
However, the simulation did not include some of the more complex aspects of natural selection, such as sexual selection, gene flow, genetic drift, and coevolution with other species.
Additionally, the simulation was simplified and did not account for the many factors that influence natural selection in the real world, such as environmental change, predation, disease, and human impact.
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1. Conservation biologists studying cheetah populations have determined that the lack of genetic diversity among the cheetahs is due to genetic drift. Which statement explains the most likely consequence of having a low genetic diversity on the cheetah population?
A. The gene pool remains in equilibrium and future generations of cheetah offspring are stronger and better adapted to their environments.
B. The cheetah population becomes less likely to survive an outbreak of a disease or an environmental change, increasing the chance of species extinction.
C. The chances of mutations occurring in the cheetah population are decreased, increasing the cheetah survival rate.
D. Genetic variability is maintained from older cheetah populations that have survived and endured environmental stressors.
Answers
Answer: it’s B
Explanation:
You are studying a population of Dlugosch’s Small Octopus that has been suffering from a skin disease. In your work, you find that some individuals have more resistance (immunity) to the disease than others. You remember learning about life history trade-offs in your Ecology class, and you hypothesize that immunity trades off with investments in other major life history traits in the octopuses. You decide to design a study to test whether higher immunity leads to a lower number of eggs produced by females.
9. State a prediction for what the results of your study would look like if they support the hypothesis given in the Mission.
Make a figure of results that would be consistent with that prediction:
Label y axis with the variable that should be on the
Label x axis with the variable that should be on the
Draw results bars or lines consistent with your prediction
If the infection reduces the population size of the octopus, would you predict an r or a K strategy would be more likely to evolve (based on what we discussed in class)? Explain why that life history strategy would be favored in a small population, and give at least two traits associated with the strategy that you predict.
Answers
If higher immunity leads to a lower number of eggs produced by females in Dlugosch's Small Octopus, then there will be a negative correlation between immunity level and egg production.
A K approach would be more likely to develop if the illness causes the octopus population to decline. Resources are few in a tiny community, therefore long-term stability and survival are prioritized over rapid population expansion. The K approach emphasizes having fewer kids while allocating more resources to ensuring their survival and welfare. In a small population, the following two characteristics connected to a K strategy might be more prevalent:
Increased parental care: Parents invest more time and resources in raising a smaller number of offspring to increase their chances of survival and reproductive success.
Delayed maturation: Individuals take longer to reach reproductive maturity, allowing them to invest more time in growth, development, and building up resources before reproduction.
These traits help ensure the survival and success of the limited number of offspring in a small population, aligning with the K-selected life history strategy.
In this figure, the y-axis represents the number of eggs produced by females, and the x-axis represents the immunity level of the octopuses. The bars or lines would show a decreasing trend as the immunity level increases, indicating a negative relationship between immunity and egg production.
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any 3 difference between physical change and chemical change
Answers
Answer:
xkjvucbhygbnmhhjnnjfyh
“Some viruses are programmed to reproduce by identifying bacteria, killing them, and assembling new viruses.viruses do not eat the bacteria and do not grow after they are made. Viruses are not alive. Explain two reasons why.”
Answers
1. Viruses cannot reproduce on their own: Unlike living organisms, viruses cannot reproduce on their own. They need to infect a host cell and hijack the host cell's machinery in order to replicate themselves. Once they have infected a host cell, they use the cell's energy and resources to create new copies of themselves. However, they do not have the ability to reproduce outside of a host cell.
2. Viruses do not have the ability to carry out metabolic processes: Living organisms carry out metabolic processes, such as respiration and digestion, in order to obtain energy and nutrients. Viruses do not have the ability to carry out these processes on their own. They rely entirely on the host cell to provide them with energy and nutrients. In fact, viruses do not even have the necessary machinery to carry out these processes. They lack the organelles, such as mitochondria, that are responsible for energy production in living cells.
when reach the hypothalamus, they can trigger a rise in the body's temperature called .
Answers
When pyrogens reach the hypothalamus, they can trigger a rise in the body's temperature called a fever. This process helps the immune system function more effectively and creates a less hospitable environment for harmful pathogens, ultimately supporting the body's recovery.
When infection or inflammation occurs in the body, immune cells release chemicals called pyrogens. These pyrogens travel to the hypothalamus, a region in the brain that acts as the body's thermostat. Upon reaching the hypothalamus, pyrogens bind to specific receptors, causing a change in the set point of the body's temperature regulation.
This altered set point results in a rise in the body's temperature, a phenomenon known as a fever. A fever is the body's natural defense mechanism against harmful pathogens, as increased temperature can help the immune system work more efficiently and inhibit the growth of microbes. Additionally, higher body temperature can speed up the process of tissue repair.
To achieve this elevated temperature, the hypothalamus sends signals to various parts of the body, including muscles, which then generate heat by shivering, and blood vessels in the skin, which constrict to reduce heat loss. The body also responds with behavioral adjustments, such as seeking warmth or curling up, to further conserve heat and maintain the higher temperature.
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Select ALL the correct answers.
Which statements are true regarding an energy pyramid?
The number of producers is greater than the number of primary consumers.
The amount of energy at the primary consumer level is greater than the amount of energy at the
secondary consumer level.
The number of primary consumers is less than the number of secondary consumers.
The amount of energy at the producer level is less than the amount of energy at the primary
consumer level.
Answers
Explanation:
The number of primary consumers is less than the number of secondary consumers.
A strand of messenger RNA is attached to a ribosome and is directing protein synthesis. The next exposed codon of this messenger RNA has the code GAA. It is most likely to bond with a transfer RNA that has which amino acid?
Answers
Answer:
Glutamic acid or Glutamate
Explanation:
This question is describing the process of TRANSLATION, which is the process by which protein is synthesized from a mRNA template. In the process of translation, a molecule called transfer RNA (tRNA) reads mRNA codons and carries its corresponding amino acid to the growing polypeptide chain.
According to this question, strand of messenger RNA is undergoing translation in the ribosome. However, the next exposed codon of this messenger RNA has the code GAA. A tRNA carrying an amino acid that corresponds to the codon GAA will attach to it. This amino acid is GLUTAMIC ACID.
N.B: codon GAA encodes amino acid GLUTAMIC ACID
Members of different species do not produce offspring due to:
A) Behavioral Speciation (differing mating rituals)
B) Temporal Speciation (varying breeding times)
C) Mechanical Speciation (gamete incompatibility)
D) any of these
(Please Answer Fast)
Answers
Answer:
Broadly speaking, different species are unable to interbreed and produce healthy, fertile offspring due to barriers called mechanisms of reproductive isolation. These barriers can be split into two categories based on when they act: prezygotic and postzygotic.
Explanation:
So the answer would most likely be C.
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A substance is moved ______ its concentration gradient using the energy of ______ .
Answers
A substance is moved against its concentration gradient using the energy of an electrochemical gradient.
The cell must employ energy to transfer substances against a concentration or electrochemical gradient. This energy is derived from adenosine triphosphate (ATP), which is produced during the cell's metabolism.
Pumps are active transport systems that function against electrochemical gradients. Small particles are continually passing across plasma membranes. In the face of these passive motions, active transport maintains ion and other chemical concentrations required by live cells.
These processes may use a large portion of a cell's metabolic energy supply. For example, the majority of a red blood cell's metabolic energy is utilized to maintain the cell's essential balance of external and internal sodium and potassium levels.
Because active transport systems rely on a cell's metabolism for energy, they are vulnerable to various metabolic toxins that disrupt ATP supply.
There are two ways for transporting tiny molecules and materials with low molecular weight. Primary active transport transports ions across a membrane and generates a charge differential across the membrane, which is directly dependent on ATP.
Secondary active transport is the movement of material caused by the electrochemical gradient generated by primary active transport and does not require ATP directly.
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This food web describes feeding relationships in a tropical community.
boa constrictor
beetle
coati
poison dart frog
sloth
strangler fig
fungus
fruit bat
If an invasive species of beetle enters this community, which change is most
likely to happen?
A. A decline in the native species of beetle
B. An increase in biodiversity throughout the community
C. An increase in the stability of the overall ecosystem
D. A decline in competition for strangler figs as a food source
Answers
Answer:
A. A decline in the native species of beetle
Explanation:
How does knowing if someone is heterozygous or homozygous for their blood type be important
Answers
Answer:
Blood transfusions: When a person needs a blood transfusion, it is important to match the donor blood type with the recipient's blood type to avoid serious complications. If someone is homozygous for a particular blood type, it means that they have two copies of the same allele, so their blood type will always be the same. If someone is heterozygous for a blood type, they have two different alleles, and their blood type can be more complex to determine.
Inheritance patterns: Understanding the inheritance patterns of blood types can help predict the likelihood of a child inheriting a certain blood type based on the blood types of their parents. For example, if both parents are heterozygous for a particular blood type, their child has a 25% chance of inheriting a certain blood type, a 50% chance of inheriting a different blood type, and a 25% chance of inheriting a third blood type.
Medical conditions: Certain medical conditions are associated with specific blood types. For example, people with type O blood are more susceptible to certain infections, while people with type A blood may have a higher risk of developing stomach cancer. Knowing someone's blood type can help identify their risk for certain medical conditions and may guide preventative care or treatment.
is a bird à consommateur
Answers
Answer:
yes?
Explanation:
Sorry I couldn't understand the way you type BUT a bird is a consumer as it feeds off of not only producers eg plants, berries etc. It also eats bugs, worms etc thus making it a consumer.
sorry if you actually meant to write a different question
Question 26 1 pts Cross-cultural research suggests that attachment security depends on attentive caregiving playful interaction restriction of exploration exploration physical control D
Answers
Cross-cultural research suggests that attachment security depends on a combination of factors, including attentive caregiving, playful interaction, restriction of exploration, and physical control.
Caregivers who are responsive, warm, and attuned to their children's needs tend to promote secure attachment in children. Playful interaction, such as engaging in fun activities and games with children, can also promote attachment security. However, caregivers also need to set appropriate limits and boundaries for children, which involves restricting exploration and exerting physical control when necessary. This balance of warmth and control is crucial for promoting healthy attachment relationships across different cultures.
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What is the chemical formula of the first carbohydrate shown?
Answers
Answer:
The chemical formula for carbohydrate is carbon, oxygen and hydrogen, the number of atoms varies on what carbohydrate. Carbohydrate general formula is CnH2nOn" e.g: Glucose - C6H12O6. Carbohydrates consist of the elements carbon, hydrogen and oxygen with a ratio of hydrogen twice that of carbon and oxygen...
Explanation: