Answers
Explanation:
Because there's a higher concentration of oxygen molecules outside the cell compared to the cell's cytoplasm, you'll see that oxygen diffuses into the cell along this concentration gradient. ... Because the molecules are moving at random, some will move out of the cell, but most will be moving in in this case.
Transporation is the mechanism by which the molecules and enzymes move in and out of the cell. When more oxygen is present outside the cell diffusion will occur along the concentration gradient.
What is diffusion?Diffusion is a transportation mechanism that involves the movement of the ions and the molecules from the high concentration area towards the low concentration region.
The high amount of oxygen present outside the cell will diffuse through the cell membrane inside the cell along the concentration gradient so that the concentration inside and the outside achieves equilibrium.
Therefore, the movement of the oxygen molecules from high concentration to low is diffusion.
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Related Questions
6. Why do you think that Pavlovian-conditioned
fish that were not shown the light (PAV-NL)
performed more poorly than the
unconditioned fish (UNP) when facing PAV-L
fish?
7. Do you think conditioning aggressiveness in
other types of animals or humans would show
similar results? (highlight/circle One) YES
or NO Explain your answer.
Explain:
8. In addition to conditioning, what other
explanations are possible for the finding that
winners
keep winning?
Answers
Answer:
6. It is likely that the Pavlovian-conditioned fish (PAV-NL) performed more poorly than the unconditioned fish (UNP) because the conditioned fish had not been exposed to the light stimulus and therefore had not developed the conditioned response.
7. Yes, conditioning aggressiveness in other types of animals or humans would likely show similar results. This is because conditioning is a learned behavior, and animals and humans can be conditioned to respond to certain stimuli in a certain way.
8. Other explanations for the finding that winners keep winning could include that they have better physical abilities, better strategies, or better access to resources. Additionally, winners may have a psychological advantage due to their past successes, which can lead to further success.
Explanation:
Though it occurs naturally in lakes, human activities can increase
A the water table
B eutrophication
C tributaries
D reservoirs
Answers
Human activities can increase eutrophication. Option B
What is known as eutrophication?The process through which a body of water, such as a lake or river, gets enriched with nutrients, mainly nitrogen and phosphorus, is what is called eutrophication.
This water enrichmnt can be caused by natural or human activities like agriculture, wastewater treatment plant discharge, or air pollution from fossil fuels
Eutrophication can affect aquatic ecosystems negativly. This can lead to loss of biodiversity, or evn changes in the food web. It is also known to reduced recreational and beauty of of our water bodies.
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If two individuals have a certain phenotype, does that mean they must have the same genotype?
Answers
Answer:
No.As we know that phenotype depends on physical appearance whereas genotype is genetical materials. So person having same phenotype doesn't mean they have same genotype.
What can increase the rate that lactic acid is removed from the muscles?
A. A cool-down exercise
B. Drinking water
C. Stop exercising immediately
D. Applying a muscle cream with a base to neutralize the acid
Answers
The rate at which lactic acid is removed from the muscles can be increased by DRINKING WATER
HOW LACTIC ACID FORMS IN MUSCLES:
Lactic acid is produced in the muscle cells when there is lac of or insufficient oxygen to perform aerobic respiration. During vigorous exercise e.g. running, oxygen is used up faster, hence, causing cells to switch to anaerobic respiration (fermentation) leading to the build up of lactic acid.WAY TO HELP THE BODY GET RID OF LACTIC ACID IN MUSCLE CELLS:
Lactic acid buildup often comes with pain and soreness in the muscles. However, the rate of removal of lactic acid in the muscle cells can be increased by staying hydrated (drinking water) prior to, during and post exercise.The rate at which lactic acid is removed from the muscles can be increased by DRINKING WATER.
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9. If Seneca decides to walk across town to a store that is .95 kilometers away and
she has only 25 minutes to get there, what speed does she need to maintain in
order to reach the store on time?
Answers
Answer:
95k / 25mn = 3.8m/s
Explanation:
I did this this morning...but i'm not sure whether it's right or wrong.
brainliest will be given!! describe the transfer of matter and flow of energy from one trophic level to another within an ecosystem. All of the following must be addressed in your response to receive full credit: 50 points! (would really appreciate if the questions were answered will give brainliest.
Discuss the transfer of biomass when one organism eats another. Use your knowledge of digestion to discuss how food is broken down and used by the consumer.
b. Explain what happens to the energy that is not transferred from one organism to another.
c. Explain why there are typically fewer organisms at the top of an energy pyramid.
d. Use specific numbers and calculations to support your explanation.
Answers
Q- Discuss the transfer of biomass when one organism eats another. Use your knowledge of digestion to discuss how food is broken down and used by the consumer.
ANSWER IN ATTACHMENT
Q- What Happens To The Energy That Does Not Transfer To The Next Level?
ANSWER- The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat
Q- Explain why there are typically fewer organisms at the top of an energy pyramid
ANSWER- The number of organisms at each level decreases relative to the level below because there is less energy available to support those organisms. The top level of an energy pyramid has the fewest organisms because it has the least amount of energy
I HOPE IT HELPS YOU ｡◕‿◕｡
~Its srishty~✿
The transfer of matter and energy occurs from producers to primary consumers to secondary consumers. b) It is lost as heat. c) Because the top of an energy pyramid has the least energy d) If 10,000 energy units are available at the producer’s level only 1000 units are available at the consumer level.
The primary producers use the sun's energy to produce food which is eaten up by primary consumers which are again eaten by secondary consumers. In this way, there is a flow of energy in the ecosystem.
Digestion is the physical and chemical process of breaking down food into smaller, easier-to-digest molecules.
b) As the energy travels from one trophic level to the next, only 10% of the energy is transferred while the rest 90% of the energy is lost as heat.
c) The reason why there are fewer organisms at the apex of an energy pyramid is due to energy transfer and the principles of thermodynamics. However, as energy is transferred, some energy is lost. The 10% rule states that only approximately 10% of energy available at a trophic level passes to the next level.
d) To illustrate this, let’s look at a simple example using simple numbers. Suppose we have 10,000 energy units available at the producer’s level (the plants). Primary consumers (the plants) can only consume about 10% of this energy, so they’d have 1,000 energy units.
When primary consumers (the carnivores) consume the plants, they’ll only be able to consume about 10% more energy, resulting in 100 energy units. Tertiary consumers (the top carnivores) feeding on the secondary consumers would only get around 10 units of energy.
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Suppose an ecologic study comparing chlorine levels in drinking water and cancer rates in 5 US cities shows a strong positive correlation (r = 0.793). In other words, cities with higher levels of chlorine in the drinking water supply had higher rates of cancer incidence compared to cities with lower levels of chlorine in the drinking water supply. Based on these results, the authors call for an immediate decrease in the amounts of chlorine used to treat drinking water. Is this a sound conclusion?
a. No, because chlorine is not a carcinogen.
b. No, because the ecologic fallacy may be explaining the result.
c. Yes, because the correlation is strong.
d. Yes, because the data are from a large, multi-city study.
e. Both A and B.
f. Both C and D.
Answers
Answer:
f. Both C and D
Explanation:
Sounding an alarm warning that calls for the immediate decrease in the amount of chlorine used to treat drinking water, based on the result of the experiment is a very sound conclusion. First of all there exist a strong positive correlation of r = 0.79, which is close to 1. This means that the result of the experiment indicates that the higher the chlorine level in drinking water, the higher the rate of cancer incidence. Also, the experiment was carried out in 5 US cities, reducing the possibility of error due to a local factor. So, the conclusion is a very sound conclusion based on the experimental procedure, and the analysis of the result.
someone help me giving brainless please hurry
Answers
Answer:
B or D i think B
Explanation:
All of the following are used for movement in unicellular organisms except ….
Answers
Answer:
its (c) pseudopodia
Explanation:
Which of the following best characterizes an ecological footprint?
A. A measure of environmental impact
B. A measure of biological productivity
C. A measure of biocapacity
D. A measure of land area
SUBMIT
Answers
Answer:
Option B
Explanation:
An economics footprint can be described as a measure of biological productivity.
Ecological footprints show a comparison of the rapidness of our resources consumption and waste generation to the rapidness of natural absorbing these wastes and also including our carbon emission.
Thus, one of the characteristics of ecological footprints is a measure of our biological productivity.
Which of the following living things would occupy the highest trophic level?
Answers
Trophic levels are the position that organisms have in the trophic chain or web, with producers on the lowest position and tertiary consumers (those that consume secondary consumers) on the highest one.
From the examples provided, the lynx would be the one in the highest trophic level (3rd option).
Which nitrogen base sequence is the partner of O C-A-T-C-G-A?
O C-A-T-C-G-A
O G-T-A-G-C-T
O (wrong) T-G-C-T-A-G
O G-C-A-T-G-T
Answers
Answer:
3rd one
Explanation:
hope so but if not am sorry
How much force would the orange man need to use for the 200kg Fridge to accelerate at 5m??
Answers
Answer:
We do not have the picture showing what the orange man is doing, but the TOTAL force required is
F = ma = (200 kg)(5 m/s2) = 1000 N
Explanation:
2.2.1 2.2.2 State TWO possible advantages of using bananas as a vaccine against diseases. Give TWO reasons why people might be against the use of genetically modified bananas.
Answers
Advantages of using bananas as a vaccine against diseases: Oral Delivery, Cost-Effective Production.
Reasons why people might be against the use of genetically modified bananas: Safety Concerns, Moral Considerations.
1. Oral Delivery: Bananas can be consumed orally, making them an ideal vehicle for delivering vaccines. This eliminates the need for injections, which can be uncomfortable and require medical professionals to administer.
2. Cost-Effective Production: Bananas are relatively inexpensive to produce and are widely available in many parts of the world.
This makes them a cost-effective option for vaccine production and distribution, particularly in resource-limited settings.
Reasons against the use of genetically modified bananas as vaccines:
1. Safety Concerns: Some individuals may have concerns about the safety of genetically modified organisms (GMOs), including genetically modified bananas.
There may be uncertainties about the long-term effects of consuming GMOs, and fears of potential risks to human health and the environment.
2. Ethical and Moral Considerations: Opposition to genetically modified bananas may stem from ethical and moral concerns regarding the alteration of natural organisms.
Some people may view genetic modification as interfering with nature or raising questions about the boundaries of manipulating living organisms.
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Interphase must occur once before meiosis can happen. (Same thing for mitosis). What would happen if interphase didn't occur first?
Question 5 options:
The new cells would have the same amount of DNA.
Half of the new cells would not have nuclei.
The new cells would have half as much DNA.
The new cells would have ¼ the DNA as the original cell.
Answers
Interphase is the initial stage of both mitosis and meiosis. The function of the interphase is to allow the cell to grow, duplicate its DNA, and carry out cellular activities. The next stages of mitosis and meiosis occur following interphase. Hence, if interphase didn't occur first, the cells would have half the amount of DNA.Interp
hase is a cell cycle phase in which cells prepare for cell division by performing critical growth and replication processes. The DNA is replicated during the S (synthesis) phase of interphase in preparation for cell division. DNA replication occurs only in interphase, and cells must pass through interphase before proceeding to the subsequent stage of the cell cycle.
The amount of DNA in the new cells would be halved if interphase did not occur first before meiosis or mitosis. It's worth noting that interphase is a crucial stage that facilitates chromosome replication and increases the cell's overall size and mass.
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In South America near the Andres Mountains and in Africa near Mt. Kilimanjaro, the climate is cold. Why do you think this is so?
Answers
The cold climate near the Andes Mountains in South America and Mt. Kilimanjaro in Africa is primarily due to their high elevations. As air rises over mountain ranges, it cools and loses moisture, resulting in lower temperatures and arid conditions on the leeward side of the mountains.
What is the height of Mt. Kilimanjaro?Mount Kilimanjaro is the highest peak in Africa, rising over 19,000 feet above sea level. The mountain's height and location near the equator result in a unique climate that includes freezing temperatures at the summit despite its proximity to the hot and humid tropics below.
The cold climate near the Andes Mountains and Mount Kilimanjaro is a result of their high elevations and their location on the leeward side of mountain ranges, where air cools and loses moisture as it rises.
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Which letter indicates a cell structure that directly controls the movement of molecules into and out of the cell?
Answers
Answer:
Cell membrane controls the movement of molecules into and out of the cell
Explanation:
Answer:
cell membrane
Explanation:
it controls what goes in and out of the cell
Determine the energy transfer between trophic levels in the plankton community example in the above diagram:
(a) Between producers and the primary consumers.
(b) Between the primary consumers and the secondary consumers.
(c) Explain why the energy passed on from the producer to primary consumers is considerably less than the normally expected 10
%
10% occurring in most other communities (describe where the rest of the energy was lost to).
(d) After the producers, which trophic group has the greatest energy content.
(e) Give a likely explanation why this is the case.
Answers
A plankton community refers to a group of organisms that float or drift in the water and are unable to swim against the current. This community includes a diverse range of organisms such as bacteria, algae, protozoa, and small animals such as krill and copepods.
The energy transfer between trophic levels in the plankton community example can be determined as follows:
(a) Between producers and primary consumers, the energy transfer is approximately 1%. This means that only 1% of the energy captured by the producers is transferred to the primary consumers.
(b) Between primary consumers and secondary consumers, the energy transfer is approximately 10%. This means that 10% of the energy obtained by the primary consumers is transferred to the secondary consumers.
(c) The energy passed on from producers to primary consumers is considerably less than the normally expected 10% because most of the energy is lost through respiration, excretion, and incomplete digestion. In addition, some energy is lost as heat in metabolic processes.
(d) After the producers, the zooplankton group has the greatest energy content.
(e) This is because zooplankton are able to feed on a variety of different types of plankton, which allows them to obtain a greater amount of energy than other trophic groups that are more specialized in their diets. Additionally, zooplankton are able to store energy as lipids, which can be used later during periods of low food availability.
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what natural factors can change a population’s sizea- emigrationb-immigrationc-births and deathsd-all of the above
Answers
Natural factors that can change the population size are: emigration, immigration, births, and deaths inside the population. Therefore, the answer for the question is all the above (d).
In E. coli bacteria, the lac operon contains genes that code for enzymes that break down lactose. Which statement describes when the genes in the lac operon are expressed?
Answers
The genes in the lac operon are expressed when lactose is present and the repressor protein is unable to bind to the operator region.
In E. coli bacteria, the lac operon contains genes that code for enzymes involved in lactose metabolism. The lac operon is a regulatory system that controls the expression of these genes. The expression of the genes in the lac operon is tightly regulated and depends on the presence or absence of lactose and glucose in the environment.When lactose is present, it binds to the repressor protein (lac repressor), causing a conformational change in the repressor. This change prevents the repressor from binding to the operator region of the operon. As a result, RNA polymerase can bind to the promoter region and transcribe the genes, leading to the production of the enzymes that break down lactose.In the absence of lactose, the repressor protein binds to the operator region and blocks RNA polymerase from initiating transcription. This prevents the expression of the genes in the lac operon.For more questions on protein
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do you think there should be government regulation against known carcinogenic
Answers
Based on scientific evidence, exposure to carcinogenic substances can have adverse health effects and governments should take necessary actions to regulate the use and disposal of known carcinogenic substances.
Thus, many countries have implemented regulations on carcinogenic substances based on the scientific evidence, such as asbestos, tobacco, etc. to be used in industrial processes which limit the use or sale of certain substances.
Regulation can play a critical role in protecting individuals from the harmful effects of carcinogenic substances. The regulations on carcinogen substances have potential economic impact on industries that use these substances. However, these regulations should be based on the scientific evidence and the potential risks associated with it.
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1 Producers
why this is true?
consumers.
generally found at the beginning
of a food chain. Which statement best explains
(1) Producers are usually smaller in size thân
(2) Producers do not rely on other organisms
(3) There are always more consumers than
producers in food chains
(4) Consumers are always more complex organisms
than producers.
for food.
Answers
Answer:
(2) Producers do not rely on other organisms
Which is not a pathway by which plants obtain
nitrogen in a usable form?
A chemical fertilizers
B lightning
C photosynthesis
D symbiotic bacteria
Answers
Answer:
C. Photosynthesis
Explanation:
Nitrogen is an important elemental component needed for plant's growth and development. However, plants obtain this Nitrogen in various ways including chemical fertilizers, symbiotic bacteria and lightning.
Plants, via their roots, may absorb nitrogen in the usable form, from applied fertilizers. They can also derive nitrogen compounds (nitrates) by forming symbiotic relationship with nitrogen-fixing bacteria in the soil. Lightning is also a source of atmospheric nitrogen, which is converted to a usable form by nitrogen-fixing bacteria.
However, plants perform PHOTOSYNTHESIS to produce sugars (glucose) and not nitrogen.
Read through the scenarios below and calculate the predicted change in kinetic energy of the object compared to a
50 kg ball traveling at 10 m/s.
A 50 kg ball traveling at 20 m/s would have
kinetic energy.
A 50 kg ball traveling at 5 m/s would have
kinetic energy.
A 50 kg person falling at 10 m/s would have
kinetic energy.
Answers
Answer:
4 times more,4 times less,the same
Explanation:
edeg 2022
Answer:
The person above (or below) me is correct, the answers are:
Four times more, four times less, the same.
Explanation:
I had this question on Edge, 2022.
Hope this helped, have a great day/night! <3
Help please ASAP!
When scientists use the term "carbon footprint", they are referring to the _________ released into the atmosphere as a product from burning fossil fuels .
Select one :
1. Indirect emissions.
2.Carbon product gases .
3.Greenhouse gas emissions
4.Direct emissions .
Answers
Answer:
3 pretty sure and your welcome
Global ______ may result in the melting of glaciers, the inundation of wetlands, and the loss of many species that cannot migrate or adapt to new habitats.
Answers
Answer:
warming
Explanation:
Answer:
GLOBAL WARMING
Explanation:
global warming is warming up the earth which is causing a lot of destruction. we will all probably get flooded one day
Parasitism, mutualism, and commensalism are all types of __________.
predator-prey relationships
ecosystems
symbiosis
competition
Answers
The remora fish, which adheres to a shark and feeds on the leftovers of the Parasitism, mutualism, and commensalism are all types of symbiosis. The correct option is C.
Thus, a biological relationship between two or more distinct species is called symbiosis. Three different kinds of symbiotic interactions include parasitism, mutualism, and commensalism. One species gains from parasitism while the other suffers. The parasite can harm or even kill its host while feeding on it. In a mutualistic connection, both species gain from the interaction.
For instance, bees pollinate flowers while the blooms feed the bees nectar. One species gains by commensalism, whereas the other is neither aided nor hurt, which is a type of symbiosis.
Thus, the ideal selection is option C.
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Please help me on this question
Answers
Answer:
B of course
Explanation:
Explain the basics of surfing, include properties of waves as well as important properties of surfboards.
Answers
Surfing basics
Surfing is a fun water sport that involves riding waves on a surfboard.
Waves are created by wind blowing across the surface of the ocean, and their size and shape depend on the strength and direction of the wind.
Important properties of waves for surfing include height, length, and shape. Waves that are too small or too big can be difficult to ride, while waves that are too steep or too flat can also be challenging.
Surfboards are specially designed to help surfers catch and ride waves. They come in different shapes and sizes, but all have a few important features in common:
a. A pointed nose to help cut through the water
b. A flat or slightly concave bottom for stability
c. A rounded or pointed tail for maneuverability
d. Fins on the bottom to provide direction and control
In order to surf safely, it's important to follow some basic rules, such as checking the surf report before heading out, wearing a leash to keep the board attached to your ankle, and being aware of other surfers in the water.
In summary, surfing involves riding waves on a specially designed board. Important properties of waves include height, length, and shape, while surfboards have a pointed nose, flat or slightly concave bottom, rounded or pointed tail, and fins for control. Safety is important when surfing, and following basic rules can help ensure a fun and enjoyable experience.
Fluid dynamics is the study of how fluids behave and interact with objects in motion, and surfers need to understand how waves move through the water and how to navigate them on a board.
Friction is the resistance that one surface encounters when moving over another, and the fins on the bottom of the surfboard create friction with the water to help the surfer control their direction and speed.
Inertia is the tendency of an object to resist changes in motion, and surfers use their weight and balance to stay on the board and maneuver through the water.
Buoyancy is the ability of an object to float in a fluid, and surfboards are designed to be buoyant.
Gravity is the force that keeps the surfer and the board on the surface of the water.
chatgpt
Which of the following are benefits to using a wet mount preparation and brightfield microscopy? SELECT ALL THAT APPLY - The preparation is quick, easy and low cost. - You can distinguish Gram-positive and Gram-negative bacteria easily. - You can can see living, motile organisms. Due to high contrast you can easily observe microbes. - You can store slides long term for future analysis.
Answers
Wet mount preparation and brightfield microscopy is used for
2. You can can see living, motile organisms.
3. Due to high contrast you can easily observe microbes.
In general , the wet mounts are samples that are stored in solution and not stained, on the other hand dry mounts are samples that are stained and dried before viewing. Dry mounts generally kill the cells, so wet mounts are used to see the motility. Hence ,Wet Mount are used to performed in the laboratory to observe mo.tile organisms. And widely used in examination of material obtained from infected areas of the patients .
Bright field microscopes contains components like light sources either a halogen lamp or LED.
Hence, 2 and 3 is the correct option
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