Many bacteria and fungi have a difficult time surviving on our food if the food is very salty. The best explanation for this is Group of answer choices that the salt in the food creates a hypertonic environment for the bacteria and fungi that bacteria and fungi cannot survive in an isotonic environment that bacteria and fungi cannot survive in a hypotonic environment that the salt in the food creates a hypotonic environment for the bacteria and fungi
Answers
Many bacteria and fungi have a difficult time surviving on our food if the food is very salty. The best explanation for this is that the salt in the food creates a hypotonic environment for the bacteria and fungi. Correct option is d.
In a hypotonic solution, which is a highly diluted external medium, bacteria and fungus can thrive. Osmosis is the process by which bacteria and fungi in hypotonic medium absorb water from the external medium. The cell swells and exerts pressure against the cell wall as a result of the high water content inside. Cells having cell walls, like those of bacteria and fungus, can endure dramatic changes in the external environment at this moment because their walls exert an equivalent pressure against the inflated cell.
In contrast, water is lost from the cell when microorganisms are placed in a hypertonic environment, where the concentration of solute is higher outside the cell, leading to dehydration, contraction of the plasma membrane, and ultimately death.
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Complete question is:
Many bacteria and fungi have a difficult time surviving on our food if the food is very salty. The best explanation for this is: Group of answer choices
a. that the salt in the food creates a hypertonic environment for the bacteria and fungi
b. that bacteria and fungi cannot survive in an isotonic environment
c. that bacteria and fungi cannot survive in a hypotonic environment
d. that the salt in the food creates a hypotonic environment for the bacteria and fungi
Related Questions
When does a population experience logistic growth? options:A) When natural predators are introduced to the populationB) When it reaches the carrying capacityC) When there's primary successionD) When it has access to unlimited resources
Answers
The correct option is D) When it has access to unlimited resources. Logistic growth requires infinite resources to be sustained, it is common in primary succession, and microbes lab cultures.
In an experiment, a researcher prepares a reaction mixture by dissolving a substance in a buffered solution. The substance is the substrate of a certain enzyme. The researcher adds a small amount of the enzyme to the reaction mixture and measures the amount of product that is formed over time. Which of the following best predicts the immediate result of adding more substrate to the reaction mixture at the point indicated by the arrow in Figure 1?
answer choices
The amount of product will decrease until the reaction rate goes to zero.
The amount of product will increase until the reaction reaches its equilibrium point or until the substrate is used up by the reaction.
The amount of product will increase without stopping because the enzyme will be unchanged by the reaction.
The amount of product will decrease until the reaction reaches its equilibrium point or until the enzyme is been used up by the reaction
Answers
Until equilibrium is reached or all of the substrate has been eaten, the amount of product will continue to increase.
How can the rate at which an enzyme-catalyzed reaction occurs be determined?It is possible to identify enzyme catalysis by measuring the appearance of the product or the disappearance of the reactants. The same reactants may be used in a reaction, but a different catalyst may produce different results.
Which of the following would speed up how quickly reactants turn into products in a chemical reaction?The more the temperature rises, the more crashes occur. As a reactant's concentration rises, the likelihood of reactant collisions increases as well, accelerating the rate of the reaction.
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Answer this and get brainliest. ^_^
(No Wrong Answers Please.)
Answers
Answer:
llslslsksskwnnnnwjjsksieieiii3i3ii3i3i3ii3i33i
Answer:
I think its D
Explanation:
(sorry if its wrong)
1. How did Aristotle classify organisms, and why did
his method prove inadequate?
Answers
NEED AN ANSWER ASAP
Which of the following would have the GREATEST effect on reducing the effects of
climate change??
Carpooling to work
Recycling
Biking to work
Switching to renewable energy sources such as wind and solar
Answers
Answer:
Switching to renewable energy sources such as wind and solarExplanation:if you are not useing renewable then your useing the oppsite wich is bad
If a diploid cell has 10 chromosomes (2n = 10) in g1 phase, how many pairs of sister chromatids will be present in the 'prophase' nucleus of these cells?.
Answers
Answer: 20
Explanation:
OCEAN FOOD WEB Review
Ocean Food Web
spotted seatrout
smooth toadfish
pinfish
dolphin
algae
crab
Use the ocean food web to answer the following questions:
2. What organism(s) are predators to the pinfish?
Answers
In the ocean food web, various organisms prey upon the pinfish.
One of these predators is the spotted seatrout, which feeds on smaller fish such as pinfish. Additionally, dolphins are also known to be a carnivorous mammal that consume different species of fish including the pinfish.
What is a food web?Across diverse ecosystems, ranging from terrestrial to aquatic biomes, food webs serve as a crucial mechanism responsible for depicting cascading interactions between species.
Through this graphical representation, we can observe how the nutritional and energetic resources conveniently flow within distinct categories of organisms such as primary consumers or secondary consumers.
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Why was the Nationalist Party more popular in China’s cities than in the countryside? Wealthy people who supported the party were concentrated in cities. People in the countryside were less active in politics than people in the city. Poor city dwellers hoped the Nationalist Party would bring economic change. The Nationalist Party threatened to end crop trade with Western nations.
Answers
Answer:
Wealthy people who supported the party were concentrated in cities.
Explanation:
Answer:
The answer is A on edgeExplanation:
Help please!!!!!!!!! 55 points!!!!!!!! Will give brainlest to first correct answer!!!!!!!!
What are the largest threats to the tundra biome because of climate change.
Answers
Answer:
Read below
Explanation:
Climate change is driving down populations of some Arctic tundra natives such as caribou (also known as reindeer) by fostering an increase in parasites and disease while damaging food sources. But other species, such as shrubs and the wolf spider, are thriving.
Answer:
parasites and diseases
with the new land due to climate change it has allowed new things to manifest in that area:) brainliest?
Kingdom Protista is the"" "" kingdom because it groups organisms that don’t nearly fit into other kingdoms
Answers
Answer:
Junk drawer
Explanation:
In a food web, what would happen if a secondary consumer were removed.
A. The food web would collapse.
b. The food chain would collapse.
c. The consumer eaten by the secondary consumer would die.
d. Another secondary consumer would would replace the removed secondary consumer.
Answers
In a food web, if a secondary consumer were removed, another secondary consumer would replace it. A food web is a series of organisms that transfer energy in the form of food from one organism to another. Option D is correct.
It's made up of different food chains, which show the transfer of energy from one organism to another.A food chain is a linear arrangement of organisms in which one organism consumes the organism below it in the chain. Producers, primary consumers, secondary consumers, and tertiary consumers are all components of food chains.
In a food web, energy flows from producers to primary consumers, from primary consumers to secondary consumers, and from secondary consumers to tertiary consumers. If a secondary consumer were removed from the food web, the food chain would be impacted. However, the food web as a whole will not collapse.
Another secondary consumer would replace the removed secondary consumer. For example, if a hawk, which is a secondary consumer, were removed, another secondary consumer like an owl would replace it. Option D is correct.
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Question 10 of 10
Which statement best describes what would happen if you walked from point
A to point C on this topographic map?
A. You would walk downhill and then uphill.
B. You would walk across flat and level ground.
C. You would walk downhill.
D. You would walk uphill.
Answers
The statement that best describes what would happen if you walked from point is A to point C on this topographic map is You would walk downhill and then uphill.
Option A is correct.
What is a topographic map?A topographic map or topographic sheet is described as a type of map characterized by large-scale detail and quantitative representation of relief features, usually using contour lines, but historically using a variety of methods.
A topographic map contains a detailed and accurate illustration of man-made and natural features on the ground such as roads, railways, power transmission lines, contours, elevations, rivers, lakes, and geographical name.
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Both negative-frequency dependent selection and heterozygote advantage can lead to a stable polymorphism. Answer the following questions. A) Of the two mechanisms, which is guaranteed to produce a stable polymorphic equilibrium? Which is not? Explain. (A polymorphic equilibrium is one in which both alleles are present). B) Of the two mechanisms, which could apply to bacteria? Which could not?
Answers
(A) Heterozygote advantage is guaranteed to produce a stable polymorphic equilibrium, while negative-frequency dependent selection may or may not produce a stable polymorphic equilibrium.
(B) Both negative-frequency dependent selection and heterozygote advantage could apply to bacteria.
What is Heterozygote advantage?Heterozygote advantage means that individuals who are heterozygous at a particular locus have a higher fitness than either of the homozygous genotypes. This creates a balanced selection scenario where both alleles are maintained in the population, leading to a stable polymorphic equilibrium.
On the other hand, negative-frequency dependent selection refers to a scenario where the fitness of a particular genotype depends on its frequency in the population. If the less common genotype has a higher fitness, then it will be favored by selection, leading to a stable polymorphic equilibrium. However, if the more common genotype has a higher fitness, then it will continue to increase in frequency until it becomes fixed in the population, resulting in a monomorphic equilibrium instead of a polymorphic one.
(B) Both negative-frequency dependent selection and heterozygote advantage could apply to bacteria.
Negative-frequency dependent selection can occur in bacterial populations where the fitness of a particular genotype depends on its frequency relative to other genotypes in the population. For example, some bacterial strains produce antibiotics that target other bacterial strains. If a rare genotype is able to produce an antibiotic-resistant enzyme that neutralizes the antibiotic, it will have a higher fitness and will increase in frequency until it becomes more common. This creates a negative-frequency dependent selection scenario that can lead to a stable polymorphic equilibrium.
Heterozygote advantage can also occur in bacterial populations. For example, some bacteria can use two different sugars as a source of energy, and different alleles at a particular locus may confer the ability to use one sugar or the other. If heterozygous individuals are able to use both sugars, they will have a higher fitness than either of the homozygous genotypes, leading to a stable polymorphic equilibrium.
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Name the type of silkworm reared in Nepal with scientific Name?
Answers
Answer:
Silk is a natural protein fibre and the scientific name is Bombyx Mori and it is related to the silkworms.
Explanation:
Larva and Mulburry are silkworms reared in Nepal.
A particular molecule is 45% Cytosine. What percentage of the molecule is Thymine?
Answers
Answer:
55%
Explanation:
if the whole molecule is 100%, then cytosine plus thymine is 100%
cytosine + thymine = 100%
45% + thymine = 100%
thymine = 100% - 45%
thymine = 55%
Please help me ASAP thank You
Answers
the answer or that question is b
Can you help me I’ll mark you brainliest
Answers
Answer:
625= 6.25*10²
4,216 = 4.216 × 10³.
49,603=4.9603 × 10⁴
25= 2.5 x 10¹
18569 = 1.8568*10⁴
836= 8.36*10²
9364= 9.364 × 10³
34121= 3.4121*10⁴
22= 2.2*10¹
912= 9.12*10²
7350= 7*350*10³
4874= 4.874*10³
62503=6.2503*10⁴
13058= 1.3058*10⁴
These plants have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. There is one type of spore, and the gametophyte generation grows outside of the spore wall. Which plant or plants am I describing? (SELECT ALL THAT APPLY) 000000000 Ferns Cycads Selaginella Lycopodium Conifers Ginkgo Hornworts Mosses Angiosperms 3 pts Liverworts
Answers
The correct answers are: Ferns, Hornworts, Mosses, and Liverworts.
The plants that fit the given description are:
Ferns: Ferns have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Ferns produce one type of spore, and the gametophyte generation grows outside of the spore wall.Horworts: Hornworts also have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Hornworts produce one type of spore, and the gametophyte generation grows outside of the spore wall.Mosses: Mosses have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Mosses produce one type of spore, and the gametophyte generation grows outside of the spore wall.Liverworts: Liverworts also have free-living gametophytes and free-living sporophytes. The sporophyte generation is dominant and larger than the gametophyte generation. Liverworts produce one type of spore, and the gametophyte generation grows outside of the spore wall.Therefore, the correct answers are: Ferns, Hornworts, Mosses, and Liverworts.
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What role do the dermal papillae play in the dermis?.
Answers
The role the dermal papillae play in the dermis is by strengthening it
through the presence of some tissues.
What is Dermis?Dermis is the layer which is located immediately below the epidermis. It
contains connective tissue, blood vessels etc.
The dermal papillae which is a part of the dermis houses collagen tissues
which helps to strengthen and detect pressure in the dermis .
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what characterizes repolarization, the second phase of the action potential?
Answers
Answer:
Explanation:
What characterizes repolarization, the second phase of action potential? Once the membrane depolarizes to a peak value of +30 mV, it repolarizes to its negative resting value of -70mV.
The membrane repolarizes to its negative resting value of -70 mV after depolarizing to a peak value of +30 mV.
What is membrane?Membrane is defined as the thin layer that serves as a living cell's or an internal cell compartment's outer edge. All cells contain a membrane that divides the interior from the external environment. This membrane is known as the cell membrane or the plasma membrane. A lipid bilayer that is semipermeable makes up the cell membrane.
A step of an action potential known as repolarization occurs when the cell experiences a drop in voltage as a result of the outflow of potassium (K+) ions along its electrochemical gradient. This stage follows the cell's greatest depolarization-induced voltage.
Thus, the membrane repolarizes to its negative resting value of -70 mV after depolarizing to a peak value of +30 mV.
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Why is cellular respiration so
important to cells?
A. Without it the cells would have no energy.
B. It provides the cell with oxygen.
C. It removes all of the waste that builds up in a cell.
Answers
Answer:
C. It removes all of the waste that builds up in a cell
describe one characteristic of a membrane that requires a channel be present for chloride ions to passively cross the membrane. explain why the movement of chloride ions out of intestinal cells leads to water loss.
Answers
One characteristic of a membrane that requires a channel for chloride ions to passively cross is its selective permeability.
Selective permeability allows specific molecules or ions to pass through the membrane while blocking others. Due to the charged nature of chloride ions, they cannot easily pass through the lipid bilayer of the membrane. Instead, they require channel proteins to facilitate their movement across the membrane.
The movement of chloride ions out of intestinal cells leads to water loss because it creates an osmotic gradient. When chloride ions move out of the cells, they increase the concentration of solutes in the extracellular space. This causes water to move out of the cells through osmosis to balance the concentration of solutes inside and outside the cell. This water loss can lead to dehydration if not properly regulated.
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Is thinking about the food that you eat in terms of breathing more helpful to you than thinking about it as Calories (energy). Why or why not?
Answers
Answer:
Foods high in energy but low in nutritional value provide empty calories. ... When thinking about calories, you should not be considering just your diet
Explanation:
How does an
enzyme speed up a chemical
reaction?
Answers
Answer:
By lowering the activation energy
Explanation:
Enzymes are biological catalysts. Catalysts reduce the activation energy for reactions. The lower the activation energy for a reaction, the quicker the rate. Common enzymes convert shape when substrates unite. Enzymes lower the activation energy required to turn a reactant into a product. Consequently, an enzyme-catalyzed reaction pathway has a smaller energy activation to succeed ere the reaction can progress. Therefore, enzymes speed up reactions by lowering the activation energy.
some pathogens secrete proteins called ________________, in order to obtain free iron for growth by taking iron away from iron transporting proteins in the blood such as transferrin.
Answers
Pathogens secrete proteins called "siderophores" to acquire free iron from iron-transporting proteins in the blood, such as transferrin. Siderophores aid in the uptake of iron and promote the growth of pathogens by scavenging iron from host proteins.
Iron is an essential nutrient for many microorganisms, including pathogens. However, in the human body, iron is tightly regulated and mostly bound to proteins like transferrin, limiting its availability to pathogens. To overcome this limitation, some pathogens produce and secrete small molecules called siderophores. Siderophores have a high affinity for iron and can bind to iron ions with great specificity.
When siderophores are released into the host environment, they scavenge iron by binding to iron-transporting proteins, such as transferrin, and effectively steal the iron from these proteins. By capturing iron using siderophores, pathogens can obtain the necessary iron for their growth and survival in the host. This strategy allows them to compete with the host for limited iron resources and ensures their successful colonization and proliferation.
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How is a species’ population dynamics affected by the presence of another species with the same niche?
Answers
Answer:
If two species occupied the same niche, they would be competing for the exact same resources. The competitive exclusion principle states that one of the species would drive the other to extinction.
Two species would be in direct competition for the same resources if they both occupied the same niche. According to the competitive exclusion principle, one of the species would inevitably wipe out the other.
What is niche?It defines how an organism or population responds to the distribution of resources and competitors.
(for instance, by growing when resources are abundant and when predators, parasites, and pathogens are scarce) and how it then modifies those same factors.
According to the competitive exclusion principle, often known as Gauss's law, two species that are vying for the same resource in the same habitat but occupy distinct niches cannot coexist at constant population values.
Two species can dwell peacefully in ecological niches without facing any rivalry. It encourages diversity and keeps the food chain in balance.
Therefore, population dynamics affected by the presence of another species with the same niche.
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Can anyone please help? I’ll give brainliest
Answers
Why does floating garbage tend to build up in certain places in the ocean?
Answers
Answer:
They are formed by rotating ocean currents called “gyres.”
Explanation:
Hope this helped you, Tell me If I am wrong. And Brainliest if possible. I also answered first! :D
HELP pls will mark you the brainliest
Answers
Answer: Lytic/Lytic Cycle
Explanation:
“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.