Option A. Both sodium and potassium ions are transported against their concentration gradient.
A concentration gradient happens when the attention of particles is better in a single area than in every other. In passive shipping, particles will diffuse down a concentration gradient, from areas of better awareness to areas of decreased concentration, until they are frivolously spaced.
A concentration gradient happens when the concentration of debris is higher in a single vicinity than in some other. In passive transport, debris will diffuse down a concentration gradient, from areas of higher awareness to areas of decreased awareness, till they're frivolously spaced.
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a mosquito repellent is sprayed on one arm and the other arm is not sprayed. The repellent is an example of in independent or a controlled variable.
A mosquito repellent which is sprayed on one arm and the other arm is not sprayed, is an example of independent variable.
A mosquito repellant is a chemical substance applied on the skin, clothes or any non-living object to avoid the appearance of mosquitoes on that surface. It is made of constituents like DEET, metofluthrin, oil of lemon-eucalyptus, picaridin, etc.
Independent variable in an experiment is that parameter which is changed. It has the potential to alter the results of the experiment as the effect on the experiment are influenced by this variable. It is called independent because no other variable can make changes in its effect.
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Is resource availability the onlyfactor affecting carrying capacity?A. Yes, resources are the only factor affectingcarrying capacity.B. No, changing seasons and disease also affectcarrying capacity.C. No, predation and omnivore activity affectcarrying capacity.
Let's first define what carrying capacity is:
Carrying capacity is the maximum amount of organisms an ecosystem can carry. It is related to our logistical growth formula:
[tex]\frac{dN}{dt}=r_{max}(\frac{K-N}{K})N[/tex]Where K is our carrying capacity.
Carrying capacity is affected by a couple of things:
0. Resource availability,: depending on how many resources there are in an ecosystem, it can only hold so many organisms.
,1. Space,: depending on how ,large, an ecosystem is, the denser the ecosystem (of organisms), the harder it is for the organisms to coexist. Therefore, the smaller the area, the lesser the carrying capacity.
These 2 factors (resources being biotic and space being abiotic) are the only factors few factors that affect carrying capacity.
Therefore, our best answer choice is A.
Oxygen and carbon dioxide molecules pass freely through cell membranes. Which factor determines thedirection most molecules will pass through the cell membrane?A the strength of the covalent bonds holding the gas atoms in the molecules.B the concentration of the gas molecules on each side of the membrane.the ionic charge on the outer shell of the gas molecules.D the size of the gas molecules.
There are three factors that determine whether a molecule can pass through a cell membrane: concentration, charge and size. The greater the difference in concentration, the more rapid the diffusion. Large and heavier molecules more more slowly so they diffuse more slowly.
B. the concentration of the gas molecules on each side of the membrane.
The skeleton is controlled by the muscular system. What is the muscular systemcontrolled by?A. The voluntary nervous system.B. The endocrine system.C. The involuntary nervous system.D. The exocrine system.
The muscles are controlled by the nervous system, The somatic nervous (voluntary) system is the part of the peripheral nervous system associated with the voluntary control of skeletal muscles.
On the other hand, the involuntary nervous system represents the movement of cardiac muscle, and gland cells.
Therefore, the skeletal muscles are controlled by the voluntary nervous system. The answer is a.
What’s the correct answer answer asap for brainlist
What flower is the symbol of the sun and the symbol of Japan?
Answer:
Chrysanthemum
Explanation:
Chrysanthemum
Which of the following pairs of base sequences could form a short stretch of a normal double helix of DNA?
A) 5'-purine-pyrimidine-purine-pyrimidine-3' with 3'-purine-pyrimidine-purine-pyrimidine-5'
B) 5'-AGCT-3' with 5'-TCGA-3'
C) 5'-GCGC-3' with 5'-TATA-3'
D) 5'-ATGC-3' with 5'-GCAT-3'
E) All of these pairs are correct.
The pairs of base sequences could form a short stretch of a normal double helix of DNA is:
D) 5'-ATGC-3' with 5'-GCAT-3'
In DNA, the code letters are A, T, G, and C, which stand for the chemical substances adenine, thymine, guanine, and cytosine, respectively. Under normal occasions, the nitrogen-containing bases adenine (A) and thymine (T) pair collectively, and cytosine (C) and guanine (G) pair collectively. The binding of those base pairs forms the structure of DNA.
Because of the base pairing, the DNA strands are complementary to each different, run in opposite guidelines, and are referred to as antiparallel strands.
Complementary base pairing is important in DNA because it lets the base pairs be arranged in the maximum energetically favorable way; it's miles crucial in forming the helical structure of DNA. it's also critical in replication as it allows semiconservative replication.
You could determine the sequence of a complementary strand if you are given the series of the template strand. These strands are complementary, with each base in one sticking to its partner on the alternative. The A-T pairs are linked by means of two hydrogen bonds, whilst the G-C pairs are connected through three hydrogen bonds.
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Earth's___ and _____ affect the relative amounts of solar radiation regions receive
Earth's distance and tilt affect the relative amounts of solar radiation regions receive.
Explanation:Earth's distance and tilt affect the relative amounts of solar radiation regions receive. There are no options provided in the question, but this is the correct answer. The earth's orbit is not circular and the earth rotates in a tilted orbit. Whenever the south pole is tilted towards the sun, then the south pole will get more solar radiation than the north pole. The Earth absorbs most of the energy reaching its surface and a small fraction is reflected. In total, approximately 70% of the incoming radiation is absorbed by the atmosphere and the Earth's surface while around 30% is reflected back to space and does not heat the surface.
Explain at the chemical level why plants die when they are not watered.
Your answer must explain the importance of water to photosynthesis and
describe specifically how photosynthesis would be affected and
effectively shut down with the loss of water.
Answer:
All living things need to water to survive. This is because all living things are mostly made of water and since they lose water in different ways, they need to get more water to stay the same size. So if a plant does not get enough water, it will shrink. If it goes long enough without water it will die because the plant uses water for a lot of different jobs needed to keep the plant alive.
scientists in the 1950s performed an investigation to test whether organic compounds could beproduced by stimulating the conditions of primitive earth. They placed a simple compoundsthey thought existed in the atmosphere of early earth in a heated vessel and used electricsparks to stimulate lightning. Then they determined whether sugars and amino acids werepresent period which of the following would not be an appropriate scientific activity?A. Using the results to design an additional investigation.B. making a prediction before beginning the investigation.C. systematically recording the results of the investigation.D. choosing data that confirmed the hypothesis of the investigation.
to answer the question, we will discuss each item:
A) The results obtained during an investigation are information that can be used to design subsequent experiments that will answer questions that could not be answered in the first experiment.
B) The activity of making a prediction before performing an experiment is called hypothesis, which is based on observations. That is, first we will observe the phenomenon, and based on our reasoning we will generate a prediction or hypothesis that we will test with an experiment to see if it is correct.
C) An important part of the research is to have detailed records of each part of the experiment, this way if there is an error we can know in which part of the experiment it occurred and also we can give this information to other researchers so that they can replicate the experiment and confirm the results we obtained.
D) Finally, when the experiment is finished and when we are analyzing the information, we must take all the data into account and not only those that confirm our hypothesis, since that would give us an erroneous conclusion and would be a bias of information. Therefore, the answer is D.
3. What did you leam about the effects of salinity on of CO₂ on pH and how that Impa levels?
Answer: When CO2 is absorbed by seawater, a series of chemical reactions occur resulting in the increased concentration of hydrogen ions. This process ...
Explanation:
How does the color adaptation help fish residing in the coral reefs?
The bright body color of the fish in the coral reefs helps in ________ to hide from the predator or ambush a prey.
the correct answer is in the picture since no one put the right answer
Answer:
u already got the answer right what ur question
Answer:
camouflaging
Explanation:
plato
A normal allele for a gene has more base pairs than the mutated form of the allele. Which type of mutation occurred?
O base pair separation
O base pair insertion
O base pair substitution
O base pair deletion
Answer: Base Pair Deletion
Explanation:
If the normal allele has more than the mutated then that means nucleotides were lost so a deletion occurred.
Answer:Base Pair Deletion
Explanation:
We know this because it is stated that the normal gene has more base pairs than the mutated gene. In other words, the mutated gene has less base pairs than the normal gene, which means that base pairs must have been deleted during the mutation.
What’s the correct answer answer asap for brainlist
Answer: B
Explanation:
Which of the following is true of jet streams?
A It is found close to the ground
B It occurs only in the stratosphere
C It's a current of fast moving air
D It's a current of stationary air
If a graph shows time on the horizontal axis and speed on the vertical axis, a straight horizontal line across the graph would indicate?A. No Motion b.constant speed c.steady acceleration d. Maximum speed
Answer:
An horizontal line would indicate constant speed (option b) that is because
Subject: English
Question: reread the paragraph that begins on page 2, and ends on page 3.
Click the underlined phrase that uses I literally device to make Northridge Junction seem like a desperate person.
The phrase "he clung to an exposed ledge over the valley from which the train had left" Northridge Junction seems like a desperate person, because out of feeling and/or despair he clung, in this sentence the verb to grab makes it seem like a desperate way not to be in danger of life.
What is despair?Despair is an emotional state of extreme tension, anxiety and fear.
The person immersed in this state cannot get out easily, because his negative perception contributes to his always being down. When recurrent, it becomes clinical and can take control of emotions.
A hallmark of clinical despair is the meaninglessness of feeling. There are no imminent threats, suffering or dangerous circumstances. Even so, the person experiences this state again and again.
What are the causes for despair?Despair is associated with some mental disorders, such as depression, anxiety, post-traumatic stress disorder, and especially panic syndrome.
Commonly, it is also caused by negative events in the person's life, such as trauma, divorce, dismissal, death of a loved one, abuse, use of chemical substances, among others.
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The law of _____ suggests that the orbit of planets is not circular but _____. Fill in the blanks: circles triangles ellipses rectangle
Answer:
Explanation:
Kepler's First Law: The orbit of a planet around the Sun (or a satellite around a planet) is not a perfect circle. It is an ellipse—a “flattened” circle. The Sun (or the center of the planet) occupies one focus of the ellipse. A focus is one of the two internal points that help determine the shape of an ellipse. The distance from one focus to any point on the ellipse and then back to the second focus is always the same.
The law of ellipses suggests that the orbit of planets is not circular but ellipses
Therefore your answer would be; Ellipses
Answer:
The law of ellipses suggests that the orbit of planets is not circular but elliptical.
Explanation:
Kepler's first law (the law of ellipses) explains that the orbit of the planets around the sun is not in a circular but elliptical path.
Help asap…
1. Where is the thalamus located?
A.The cerebellum
B.The cerebrum
C.The brain stem
D.The diencephalon
D. the diencephalon is where the thalamus is located
Properties of Matter Unit Test
7 of 117 of 11 Items
Question
Which of the following statements is true?(1 point)
Responses
The density of water is 1 gram per milliliter, so objects with a relative density of 1 milliliter per gram will float.
The density of water is 1 gram per milliliter, so objects with a relative density of 1 milliliter per gram will float.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will float.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will float.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink.
The density of water is 1 gram per milliliter, so objects with a relative density less than 1 gram per liter will sink.
The statement that is true is as follows: the density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink (option C).
What is density?Density is the measure of the mass of matter contained by a unit volume. The density of a liquid substance is a determinant of whether the substance will float or sink in water.
Water is a liquid substance with a density of 1 gram per millilitres (1 g/mL). This suggests that any substance with greater density than that of water will sink while any substance with lesser density than water will float.
Density is a measure of how heavy something is compared to its size, hence, if an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.
Therefore, according to this question, objects with a relative density greater than 1 gram per milliliter will sink.
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Which response represents the largest to the smallest, in terms of size?Select one:a.eukaryotic cell, prokaryotic cell, virusb.prokaryotic cell, virus, eukaryotic cellc.virus, eukaryotic cell, prokaryotic celld.eukaryotic cell, virus, prokaryotic cell
The correct option that represents the largest to the smallest, in terms of size is a.
Draw comic strip should include an example of transcription (DNA to mRNA) and an example of translation (mRNA to amino acid, and include tRNA) as well as the location of both in the cell.
We have to consider that the DNA is first transcribed into pre mRNA in the nucleus of the cell by the RNA polymerase. After this process, the non-coding fragments (introns) of the molecule are spliced by ribonucleoproteins (snRNP). Eventually, each end of the pre mRNA is modified, being a modified nucleotide named CAP joined to the 5' end, and a polyA (poly Adenine) tail at the 3' end before the now matured mRNA gets out of the nucleus to the cytoplasm.
At this point, the mRNA will be recognized by ribosomes, which will synthesize each group of three nucleotides (codons) into amino acids in a process called translation, by the action of tRNA, and finally joined into a new protein.
Note that A, P, and E are sites of the ribosomes, being A the position where first arrives the mRNA.
proteins assist the human body in which of the following ways
Chemical reaction:
yes, as enzymes are proteins that catalyze biochemical reactions.
Energy storage:
This is not a main function of proteins.
Fighting infections:
Yes, as antibodies are proteins that our imune system makes to help fight infection.
Chemical signaling:
yes, as many of the molecules used by a cell to communicate with others are proteins.
Which gas is transported by the circulatory system in humans and is USED BY cells during respiration to release energy stored in food? *A Carbon DioxideB NitrogenC HydrogenD Oxygen
In order to answer this question, we must remember a bit of cellular metabolism, when mitochondria carry out the process of cellular respiration we can see that in the electron transport chain the final acceptor of electrons is oxygen. Therefore the correct answer for the question is option D oxygen.
• How do you think the concept of the speed of light helps astronomers study the universe?Is the
speed of light in a vacuum the same regardless of where an observer stands? Explain your answer.
PLEASE HELP ME!!!!!
The cosmos is expanding at the quickest rate that astronomers have discovered. In actuality, nothing is known to move faster than the speed of light, which acts as a cosmic speed limit.
Regardless of the mobility of the source or the viewer, the in a vacuum remains constant for all observers.
What does the idea of light speed mean?
speed of light, the rate at which light waves move through various substances. Specifically, the speed of light in a vacuum is presently calculated to be 299,792,458 meters per second. One of nature's basic constants is the speed of light.
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ou are testing a patient's fecal sample for the presence of Clostridium difficile. Which of these staining procedures would give you the best evidence that the patient's sample contains bacteria from the Clostridium genus? Group of answer choicesendospore staingram stainsimple stainacid fast stain
As a protocol, the sample must first undergo primary biochemical tests, one of which is gram staining. And although this stain can help us to identify bacteria of the Clostridium genus, such as gram + sporulated bacilli, a more specific test would be the endospore stain, since the clostridium genus produces endospores that are also easy to isolate, since they are more resistant to temperature than the vegetative form (not sporulated) of the bacterium. An example would be the Schaeffer-Fulton stain.
Fungi exist as single cells or as branching networks of multicellular filamentswith a very large surface area. What is the function of the filaments?A. ReproductionB. Nutrient absorptionC. Energy productionD. Photosynthesis
Micelium, which is formed by a number of filaments, has the main function of penetrating the substrate in search of food and nutrient. Moreover, it can suffer some modifications to form reproductive structures.
The correct option is: B. Nutrient absorption.
How far apart has Africa and North America move apart since 2001
Africa and North America have moved apart since 2001 by a total of about 21 inches.
What is a Continent?This comprises of about seven landmasses on the earth which is usually very large and discrete and comprises of different countries. Examples include Africa, Asia, North America, South America etc.
Continents in the world such as Africa and North America move apart since 2001 at a rate of 1 inch per year. Since we were told that it occurred in 2001 then the total years in which it occurred is 21 then =
1 inch × 21 = 21 inches.
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What is the function of the ozone layer?A. To absorb carbon dioxide.B. To trap infrared radiation.C. To block UV radiation.D. To recycle sulfur dioxide.
The correct answer is C. To block UV radiation. Ozone filters the majority of UV spectra, so it protects organisms from its effects.
What is the difference between chromosomes, sister chromatids, non-sister chromatids, separated chromatids?
Chromosomes are structures of nucleic acids and protein carrying genetic information in the form of genes.
The chromosome is composed of two sister-chromatids.
During meiosis and mitosis, the sister chromatids are separated to separate half of the geentic material and create a new cell.
The difference between sister chromatids and non-sister chromatids is that sister chromatids have the same alleles in the same place and non-sister chromatids have different alleles in the same place. Non-sister chromatids will have the same length and configuration, but those different alleles will represent different types of the same characteristic (for example: different colors of fur). But they look the same as sister chromatids.