Answer: Currents are powerful physical forces in the seas. They move water and heat around the globe, and help determine the chemical make-up of the water column. Currents also are a major factor in ocean ecosystems. Two types of current motion, upwelling and downwelling, strongly influence the distribution and abundance of marine life.
Upwelling
Currents play a huge role in marine productivity, through a process called upwelling. Sea life is concentrated in the sunlit waters near the surface, but most organic matter is far below, in deep waters and on the sea floor. When currents upwell, or flow up to the surface from beneath, they sweep vital nutrients back to where they're needed most.
Nowhere is the link between ocean circulation and productivity more evident than around Antarctica. There, strong currents pump nitrogen and phosphate up from the deep sea to fuel vast blooms of algae and other plants. These plankton are eaten by swarms of shrimp-like crustaceans called krill. Because of upwelling nutrients, krill are abundant enough to feed the largest animals on earth, baleen whales, as well as myriad penguins, seals, and seabirds. In fact, despite the harsh conditions, the biomass of Antarctic krill is thought to be greater than that of any other animal on Earth.
Downwelling
The importance of upwelling to surface organisms is matched by the need of sea bottom life for downwelling, or the sinking of surface water. Surface water can be forced downward by the pressure of the “pile” of water that forms where currents converge or wind drives the sea against a coastline. But for bottom dwellers, the sinking of water caused by density changes is especially noteworthy. The global conveyer belt takes oxygen-rich surface water and flushes it through the deep sea. Without this renewal, the dissolved oxygen in bottom sediments and waters would quickly be used up by the decay of organic matter. Anaerobic bacteria would take over decomposition, leading to a build up of hydrogen sulfide. Few benthic animals would survive such toxic conditions.
In the most extreme cases, a lack of downwelling may lead to mass extinctions. Paleontologists have suggested that 250 million years ago, deep circulation slowed nearly to a stop, and the ocean began to stagnate. Low oxygen, sulfide and methane-rich waters filled the ocean deeps and then spread onto the continental shelves, wiping out 95% of all marine species in the greatest extinction event in Earth history.
Explanation:
An whats the question
Explanation:
The graph below show the number of sunspots observed between 1750 and 2000
Based on the graph, which of these conclusions is most likely correct about the
period between 1950 and 1980?
A. It was a period of increased solar radiation.
B. There were several earthquakes during this period.
C. There was severe rainfall during this period.
D. It was a period of abnormally cold climate.
Answer:A. It was a period of increased solar radiation
Explanation: I took a test and I got it right
Answer:
A. It was a period of increased solar radiation
Explanation:
Why is a sensor for altitude useful on a Fitbit ?
Answer:
The correct answer is - Altimeter.
Explanation:
An altimeter is a sensor that is present in the new Fitbit. Altimeter measures changes in air pressure or barometric pressure. This sensor is used to count floors and use each 10 feet elevation as one floor.
Altimeter shows reading by the pressure of the air and every time the air pressure increases altitude is decreases and if air pressure decreases there is an elevation in altitude from sea level.
biodiversity is highest near the
A: equator
B: oceans
C: temperate zone
D: the poles
Bird species from temperate regions must cope with relatively short breeding seasons. A study examined the relationship between blood testosterone level (ng/ml) and the duration of the egg-laying period (months) in temperate bird species. The scatterplot below displays this relationship, after taking the logarithm of each variable. A plausible value for the correlation between the logarithm of egg-laying duration and the logarithm of testosterone level is
Answer:
The answer is "-0.4".
Explanation:
In that situation, the value of the possible correlations between the egg-laying logarithm as well as the testosterone level logarithm is equal to 4 It value is equal to the percentage 4=-0.4.
In the human AB blood type, allele A and allele B are both expressed. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB. What type of inheritance does this example illustrate?
I believe it is called "codominance"
draw and label a diagram of the water cycle using the words below.
Gravity
Sunlight
Evaporation
Condensation
Precipitation
water cycle
Transpiration
Runoff
Water pressure is due to the weight of the water above a particular point.
Please select the best answer from the choices provided
T
F
Which type of mutation often does not change the sequence of amino acids?
Currently selected :D
A
substitution
B
three-base insertion
C
base deletion (frameshift)
D
base insertion (frameshift)
Answer:
Hi there the answer is A
Explanation:
This type of mutation is a change in one DNA base pair that results in the substitution of one amino acid for another in the protein made by a gene.
Hope this helps :)
Which greenhouse gas is produced by commercial refrigeration and air conditioning systems?
carbon dioxide
fluorinated gas
nitrous oxide
methane
answer:
-- b), fluorinated gas
hope this helps.
The greenhouse gas that is produced by commercial refrigeration and air conditioning systems is fluorinated gas.
WHAT IS GREENHOUSE GAS?A greenhouse gas is a gas that has the ability to trap and release heat energy into the atmosphere.
Greenhouse gases are the major causes of global warming, which is the rise in the global atmospheric temperature.
Examples of greenhouse gases are carbon dioxide, methane, fluorinated gas etc. Therefore, greenhouse gas that is produced by commercial refrigeration and air conditioning systems is fluorinated gas.
Learn more about greenhouse gases at: https://brainly.com/question/11595872
PLEASE HELP DUE IN LIKE AN HOUR PLSSS
Answer:
how are they making you do that in an hour
Explanation:
Please help me, and include the order correctly..
DIrections- Click Reset. Use the Gizmo to create a path in which the carbon atom goes from the atmosphere to the hydrosphere, biosphere and geosphere. Describe each transition briefly.
Answer:
I did this exact same gizmo so here's a screenshot.
Hope it helps! :)
ppppppppppppppppppppppppp
Answer:
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
Explanation:
:> tank u for pointe
UwU
16.
Define Habitat. Write about pond habitat.
Answer:
Habitat is the natural home or environment of an animal, plant or other organism.
show proof and show work please! and ill give brainliest
Answer:
C, D, E
Explanation:
C because birds and moles get their food from caterpillars and the caterpillar population has declined.
D because earthworms create nutrients in the soil and now because there are less earth worms there will be less plants
E because mice eat plants and because the moles and birds are no longer there then there is an increase in food for them.
Sorry it took so long. I would give links of where I got the info but Brainly doesn't allow links!
I would like brainliest but its not required. Have an amazing day!
PLEASE HELP ME!!!!.....
Answer:
ATP
Explanation:
Answer:
The answer is ATP
Explanation:
During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP
Which of the following are NOT used by cells for energy storage?
a.
fats
c.
carbohydrates
b.
oils
d.
nucleic acids
Please select the best answer from the choices provided
A
B
C
D
To meet the provisions of the Montreal protocol production in consumption of carbon TTRACHLORIDEN methyl chloroform or phased out which of the following best describes the result of removing these Chemicals from consumption 
Answer:
El objetivo principal del Protocolo de Montreal es la protección de la capa de ozono mediante la toma de medidas para controlar la producción total mundial y el consumo de sustancias que la agotan, con el objetivo final de eliminarlas, sobre la base del progreso de los conocimientos científicos e información ...Explanation:
porq si
Answer:cfc
Explanation:
What are organisms that can produce their own food from substances
available in their surroundings using light or chemical energy?
Answer:
plants
Explanation:
trust me its plants
Answer:
The answer is an Autotroph
Explanation:
An autotroph is an organism that makes it's own energy. This includes things like plants and algae.
In animal cells, a cell plate divides the two daughter cells in cytokinesis.
true or false?
Answer:
I think it's false.
Explanation:
Plant cells form a cell plate during cytokinesis, while animal cells form a cleavage furrow
Explain how one body system not functioning properly can affect another body
system.
Answer with explanation:
If a body system does not work properly then the other body systems will also fail because every system is needed for a person to live properly. For example if the respiratory system does not work properly then the other systems will be harmed as oxygen will not be able to move to other parts of the body. As a result, the kidneys will fail and the heart will stop working and the person will die.
One body system that is not functioning properly can affect another body system because, in an organism, coordination is maintained by the different organ systems. If one system is affected, then others will be too.
How is the body's system functioning?In a multicellular organism, the organism is regulated by the coordination of the different organ systems, such as the circulatory system, digestive system, etc. In the human body, many systems are present, and each system is made up of many organs. In the nervous system, the nerves, brain, and spinal cord are involved, in the circulatory system, the blood, blood vessels, heart, and lungs are involved, and the lungs are involved in the respiratory system too. Because a single organ is involved in multiple organ systems, if one system is affected, the others will be affected as well.
Hence, one body system that is not functioning properly can affect another body system because, in an organism, coordination is maintained by the different organ systems.
Learn more about the body system here.
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#SPJ2
6. Which organisms in the food web shown
below compete for the same food source in
this environment?
Answer:
1) Snakes and Hawks
2) Frogs and Snakes
Explanation:
1) The snakes and the hawks both eat frogs.
2) The frogs and snakes both eat grasshoppers.
Which statement describes the phospholipid bilayer that makes up a cell membrane?
Answer:
Phospholipids arrange in two layers. Fatty acid chains from each layer are "sandwiched" in the middle away from water in and out of the cell.
Explanation:
_______ are thought to have been present before vertebrates.
Answer:
invertebrates i guess
Explanation:
hope it helped!!!
1.) Chordates
2.) phylogeny
3.) most recent common ancestor
4.) derived
5.) homologous
6.) analogous
7.) opposable
8.) prehensile tails
9.) Lucy
10.) neanderthalensis
11.) Using comparative anatomy, scientists identify similarities and differences in the anatomy of different species. Scientists would search for homologous structures, analogous structures, and vestigial structures to provide clues as they construct a cladogram.
PF
When I finally arrived at the meeting place, a crowd of folks was gathered around the fountain.
Which word should replace folks in order to maintain a formal tone?
Select one:
fellas
people
guys
dudes
the answer would be people
What the answer for this
Answer:
I think it’s C
Explanation:
I’m not 100% sure it can be B tho
Please guys last time I asked this question I didn't get a valid asnwer, just scammers. I'll give you fifty points plus brainly just for trying.
Write the name of the natural disaster next the image below. Then indicate whether it is weather-related or geology-related.
Answer:
Earthquake or Fault
Explanation:
I would say earthquake but I dont know if its looking for something more specific life a fissure or fault. Anyways its geology related because one of the causes is techtonic plates moving.
Translate the following DNA:
AAA CGT GGG ATA GTG ATO
What amino acid sequence will be generated based on this DNA?
Answer:
The answer is, TTT, GCA, CCC TAT CAC TA-
Explanation:
I am not sure what you meant by O? There is no amino acid that starts with O like that but remember this Apple to tree Car to garage. Tree to apple garage to car. Pls give brainly!
Im having trouble with this
Describe the probable effects on gene expression in the lac operon of each mutation: a. Mutation in the lac operator that deletes most of O1 b. Mutation in the lacI gene that eliminates binding of repressor to operator c. Mutation in the promoter near position
Answer:
a. Reduces represor binding.
b. Constitutive expression of the operon.
c. Stronger promoter if it is more similar to the consensus sequence. Weaker promoter if less similar.
Explanation:
The lac operon is an operon required for lactose transport and metabolism in enteric bacteria such as Escherichia coli. It is regulated by glucose and lactose availability and consists of the following structural genes:
Lac z gene: encodes the enzyme β-galactosidase, which catalyzes the hydrolysis reaction of lactose into glucose and galactose.Gene lac y: encodes the protein galactoside permease involved in the transport of lactose into the bacterium.Lac a gene: encodes the enzyme thiogalactoside transferase, which catalyzes the transfer of the acetyl group of acetyl coenzyme A to 6-OH of a thiogalactoside acceptor. This gene is not related to lactose metabolism.Promoter: region of DNA recognized by RNA polymerase for transcription.Operator: region of DNA located between the promoter and the beginning of the structural genes, which is recognized by the repressor protein Lac I.Repressor gene (lac I): encodes the Lac I repressor protein, which recognizes the operator region, where it binds. It prevents the transcription of genes under the control of this promoter but stimulates the binding of RNA polymerase. When the repressor is absent (in the presence of inducer which in this case will be lactose or IPTG), RNA polymerase will begin transcription.The lac operon is under a type of negative regulation, where genes can always be transcribed, except when the Lac I repressor protein is bound to the operon region, for which it has a high affinity. In this case, the promoter of the lac I gene is constitutive, so the Lac I protein is permanently expressed and remains bound in tetramer form to the operon region, preventing the transcription of structural genes.
Since lactose is the inducer of the operon, it is able to bind to the Lac I repressor protein and generate a conformational change that decreases its affinity for the operon region. Thus, the operon region is left free, RNA polymerase can freely transcribe the structural genes and β-galactosidase can degrade lactose to glucose plus galactose. In the absence of lactose, the Lac I repressor protein maintains its high affinity for the operator region, preventing RNA polymerase from transcribing the structural genes. In this way, the system remains closed with consequent energy savings for the bacterium.
As a final clarification, actually the true inducing molecule of the lac operon is called allolactose, an isomer of lactose obtained by a transglycosylation occasionally carried out by β-galactosidase.
a. When there is a mutation in the lac operator that deletes most of the operator, then the repressor Lac I can no longer bind and RNA polymerase will begin transcription.
b. When there is a mutation in the Lac I gene that eliminates the binding of repressor to operator, then this protein can not produce the repression so there would be a constitutive expression of the operon.
c. Since the promoter us a region of DNA recognized by RNA polymerase for transcription, if there is a mutation here it will generate a stronger promoter in the case that this part is similar to a consensus sequence (the most commonly encountered nucleotides found at a certain location). In the case that it is less similar, then it will generate a weaker promoter.
When all of the populations live together in the same area, what is it called?
A. A community
B. A niche
C. An environment
D. An eco system
Answer:
When all of the populations live together in the same area, it is called:
A community
Why? Because a community occurs when multiple people are together, and the prefix com means "together".
By the way, I put in D on Edge, and it was wrong.When all type of the populaton lived together in the similar area so we called them as the community.
What is community?The population means the group of individual that are interbreeded with respect to the same species that should be isolated from the other group
while on the other hand, the community means the group or two or more various species that have the similar kind of geographical area.
Therefore, the option A is correct.
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