Answer:
from the intermembrane space to the matrix
Explanation:
In the electron transport chain (ETC), electrons flow from one protein complex to another. However, as this electrons are transfered, protons (H+) is built up from the intermembrane space of the mitochondria to the mitochondrial matrix.
Hence, according to this question, a proton gradient is formed when hydrogen ions (H+) are moving from the intermembrane space to the matrix of the mitochondrial.
The process of natural selection is seen most quickly in organisms that can reproduce many generations in the shortest amount of time. Based upon this information, which type of organism would exhibit the most rapid rate of evolution?
1.bacteria
2.fruit flies
3.finches
4.humans
Answer:
2
Explanation:
one time within 2 days my house was filled with fruit flies
Answer:
Bacteria
Explanation:
Bacteria reproduce most quickly . Fruit flies can go from the egg to sexual maturity in 3 weeks while bacteria can reproduce once they are "born" and can do so multiple times a day, while fruit flies can reproduce if mature once every day about.
Finches and humans obviously have much slower rates of reproduction.
Helppppppppppppppppp plz plz
Helpppppppppppp
Plz plz plz plz plz plz plz plz
Answer:
2nd
Explanation:
Phenotype is the organism apperence (physical)
Question 1/4
According to the Big Bang theory, what happens if you reverse the galaxy motion and go back in time?
A. Everything would become condensed into one dense point
B. Some things would remain the same, while others go back
C. Everything would be the same as it is today.
D. You would find everything in a large cloud of cold isolated gas
According to the Big Bang theory, if you reverse the galaxy motion and go back in time A. Everything would become condensed into one dense point.
The Big Bang Theory simply explains how the universe was formed from a large explosion. According to the Big Bang theory, the universe was formed as a result of the explosion of particles.
The reverse of the Big Bang Theory simply means the scenario where the expansion of the universe reverses. This is also called the Big Crunch. This will lead to the recollapse of the universe.
In this case, the cosmic scale also reaches zero. Then, everything would become condensed into one dense point.
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Which of the following correctly identifies the function of the given cell component
choose odd one out
Cheese, milk, curd, nuts
Please give me answers
Answer:
nuts
Explanation:
not dairy. that's the only thing i can think. hope it helps.
Answer:
I HATE CHEESE BUT I ALSO HATE CURD
UwU But it is nuts
(Now! imma play Beat Sabor on my Oculus)
(I got the BTS pack)
Explanation:
Please hurry!!! and help!!
Best answer gets marked Brainliest!!!!
Question 1
Which statement best describes adaptation?
A)Adaptation is the process of species gradually changing over many generations
B)Adaptation is process of plant gradually changing over time
C)Adaptation is a trait that helps an organism survive and reproduce
D)Adaptation is a difference between individuals of the same species
Answer:
C
Explanation:
Process of elimination
A= Evolution
B= Should have nothing to do with plants
C= Makes sense
D= Variation
Please give me 'Brainliest'
Some plates are moving faster than others because
Answer:
Some plates move faster than others because they may be located on a different type of boundary. For example, a slab pull will move a plate with a greater velocity than that of a ridge push due to the slab pull being a larger force.
Explanation:
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what describes when energy is released from an ATP molecule?
Answer:
hydrolysis
Explanation:
The process of hydrolysis is when one phosphate group is removed by breaking a phosphoanhyride bond. Then energy is released and ATP converts into ADP.
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Cross a red-flowered snapdragon with a white flowered one. Then perform another cross with the offspring of the first cross. List genotypic and phenotypic ratios for each cross
Answer:
i need more info to do it
Explanation:
Well I’ve been learning about this stuff and punnet squares so a red flowered plant(RR) is crossed to white flowerd plant(rr). The F1 individuals are Pink flowered(Rr). When F1 individuals are self crossed, in the F2 generation, 1 plant with red flowers(RR), 2 plants with pink flowers(Rr), 1 plant is with white flowers(rr) are formed. The phenotypic ratio is 1:2:1 and genotypic ration is 1:2:1. It is called incomplete dominance.
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What was created at the Big Bang?
Answer:
joe
Explanation:
Which of the following terms refers to a heritable trait that increases
fitness?
A. Adaptation
B.mutation
C.camouflage
D.natural selection
Answer:
the answer is
A. Adaption
If you wish to use RNAi to reduce the expression of a gene in an organism. What would you inject into the organism
Answer:
double-stranded RNA (dsRNA) homologous to the gene of interest
Explanation:
RNA interference (RNAi) is a naturally occurring mechanism used by eukaryotic cells to suppress gene expression through regulatory non-coding RNAs (e.g., small interfering RNAs, siRNAs) that are complementary to the target gene of interest. These non-coding RNAs can bind to target messenger RNAs (mRNAs) in the cytoplasm in order to trigger mRNA degradation and/or block translation. The RNAi mechanism is widely used in molecular biology laboratories in order to inhibit the expression of target genes and thus understand gene function. The RNAi mechanism can be induced by transfecting into cells long double-stranded RNA (dsRNA) molecules that are complementary to the target mRNA sequence to be degraded. RNAi is initiated by the enzyme Dicer that cleaves dsRNAs into siRNAs (19 to 25 nucleotides), which are then incorporated into an RNA-induced silencing complex (RISC) in order to suppress gene expression at the post-transcriptional level (i.e., the mRNA is degraded after transcription).
In order to use RNA interference (RNAi) to reduce the expression of a gene in an organism, you should inject a double-stranded RNA (dsRNA) hom-ologous to the gene into the organism.
Gene expression can be defined as the transcription of a gene into a messenger ribonucleic acid (mRNA), followed by its subsequent translation into proteins. Thus, gene expression is typically controlled on two (2) main levels and these are:
TranscriptionTranslationRNA interference (RNAi) is also referred to as post-transcriptional gene silencing (PTGS) and it can be defined as a biological process in which the expression of a gene in an organism with respect to in which RNA molecules are sequentially reduced (suppressed) by double-stranded RNA (dsRNA), through transcriptional or translational repression.
This ultimately implies that, you should inject a double-stranded RNA (dsRNA) hom-ologous to the gene into the organism, if you wish to use RNA interference (RNAi) to reduce the expression of a gene in an organism.
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why do you think organisms evolved from one characteristic to another?
Please don't use this question for points or you'll be reported I am timed can you please help?
The table below shows data collected in an experiment about gases in inhaled and exhaled air. Percentages of Chemicals in Air O2 CO2 Inhaled 20.94% 0.03% Exhaled 16.37% 4.46% Suppose a similar experiment was set up to measure changes in air composition immediately before and two days after twenty potted plants were placed in a clear, sealed aquarium near a window. Percentages of Chemicals in Air O2 CO2 Before 20.94% 0.03% After ? ? How would the second row of values in the plant experiment most likely compare to the second row of values in the original experiment? Oxygen levels would be higher, but carbon dioxide levels would be lower. Carbon dioxide levels would be higher, but oxygen levels would be lower. Oxygen levels would be higher, but carbon dioxide levels would be the same. Carbon dioxide levels would be higher, but oxygen levels would be the same.
Answer:
Option A is the answer
Explanation: I took the test
Answer: A
Explanation: Edge 2020
Genetic recombination plays a role in both maintenance and diversity within an organism. Explain how this balance is achieved and the underlying mechanism of recombination that are involved.
Answer:
Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.
Explanation:
Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.
The Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one. The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants. After crossing over, homologous chromosomes get separated again.
On the equatorial plane, homologous paired together, randomly aline with their kinetochores facing opposite poles. The random arrangement of tetrads is different in every cell going through the meiosis process. There is no equal alinement between two cells. When tetrads aline in the equatorial plane, there is no predetermined order for each of the homologous chromosomes of each tetrad to face one of the poles and then migrate to it while separating. Chromosomes of the homologous pair arrange to face any of the poles to migrate forward to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is also different and depends on the chromosomes that form that cell. The order in the equatorial plane is what introduces variation into the gametes, being almost impossible for two gametes to have the same genetic charge.
Independent assortment occurs when the alleles from two or more different genes distribute in gametes independently from each other. In other words, a gamete receives an allele from a gene that does not depend on nor influence the allele of another gene in the same gamete. This can only be applied to independent genes. An organism gets only one of the members of the chromatids pair of each parent.
Cell processes and Transport mastery test
Answer:
based on the predominant movement of water molecules through the cells.
Explanation:
Cell processes and transport rely on the movement of water molecules through the cell membrane.
Cell transport describes the transportation of a material through a cell membrane. The molecule has the ability to enter or exit cells. The plasma membrane and cell membrane are both permeable to various substances. The nature of the plasma membrane is semi-selective which means it is semi-permeable.
There are four classifications of cell transport and those are simple diffusion, osmosis, facilitated diffusion, and active transport.
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A mutation in which types of cells would only affect the organism
future generations?
rush rust maybe 360 degress but also 120 degress bc thats close to half of the 360 s maybe
Natural selection is best described as
a. disruptive selection
b. stabilizing selection
С. a mechanism of evolution
d directional selection
Which viral vectors are more commonly used when stable integration into the genome is required for treatment?
O 1. Adenoviruses
2. Adeno associated viruses
O 3. Lentiviruses
O 4. Retroviruses
Answer: 4. Retroviruses
Explanation: Retroviruses are among the most widely used viral vectors in gene therapy. They produce faithful transmission of the transgene into the transduced cell progeny by integrating their complementary DNA into the host genome during their life cycle
Imagine researchers following up on seeley's study brought some flat periwinkles appledore island into the lab to test for heritability. What results could they observe that would support the hypothesis that shell thickness is heritable in these snails?
Answer:
If thick-shelled snails have thick-shelled offspring and thin-shelled snails have thin-shelled offspring then this is good evidence that shell thickness is heritable.
Explanation:
Inheritance is a natural mechanism by which genetic information contained in the DNA sequence is passed from parents to offspring. Moreover, heritability is a measure of the genetic influence on the variation in a particular phenotypic trait (e.g., height, eye color, etc.) between individuals in a population. The values of heritability for a particular phenotypic trait range from zero (when all variation in a population comes from environmental factors and therefore is not heritable) to one (when all variation in a population comes from genetic factors and therefore is heritable). For example, in this case, if parental snails always have offspring with the same phenotype for the trait ‘shell thickness’, it would indicate that the heritability for this trait is equal to one, thereby evidencing that all of the variability for the trait 'shell thickness' comes from genetic differences.
When you put limp celery stalks in water,they firm up why
If your body’s hypothalamus is not functioning properly, which of the following will happen?
Answer:
You may become dehydrated because your kidneys will not hold onto enough water.
Explanation:
Which of the following organisms do not produce spores
a) evergreens
b) moss
c) bryophytes
d) ferns
e) fungi
Answer:
The following organism that does not produce spores is the evergreens.
To get rid of waste generated by thousands of sailors aboard each of its aircraft carriers, the US Navy is using a process called pyrogenesis. In this process, waste is subjected to extraordinary heat. How is pyrogenesis different from the process of setting garbage on fire in a landfill
Answer:
Its location.
Explanation:
The main difference between pyrogenesis and setting garbage on fire in a landfill is that pyrogenesis process occurs on the surface whereas garbage on fire in a landfill occurs inside the soil at certain depth. Pyrogenesis is an extreme thermal process that converts organic matter into gas made up of hydrogen and oxygen whereas garbage on fire in a landfill decomposes garbage that breaks down materials in simpler substances.
Two dogs–a boxer and a poodle–were the first to have their entire genomes sequenced. The dog genome contains 2.8 billion2.8 billion base pairs across 3939 pairs of chromosomes. They have 19,00019,000 protein-coding genes, most of them with close counterparts in other mammals, including humans. What is the total number of chromosomes in a dog?
Answer:
78 chromosomes
Explanation:
Since the number of chromosomes in a dog are diploid, we have 2n chromosomes where n = number of chromosome pairs.
Since n = 39.
The number of chromosomes is 2n = 2 × 39 = 78 chromosomes
So, a dog has 78 chromosomes.
There are two different food chains in this example:
1. Spinach --> goat --> human --> tiger
2. Spinach --> goat --> tiger
Analyze whether the tiger is at the same level and whether it obtains the same amount of energy in both the food chains.
A.
In the first food chain, tiger stands at a secondary consumer level whereas in the second food chain, it stands at primary consumer level; hence energy obtained in the second food chain is more than in the first.
B.
In the first food chain, tiger stands at a tertiary consumer level whereas in the second food chain, it stands at secondary consumer level; hence energy obtained in the second food chain is more than in the first.
C.
In both the food chains, tiger stands at a tertiary consumer level, because tiger is always a tertiary consumer; hence it obtains same amount of energy in both food chains.
All organisms need nitrogen to live and grow.
True
False
Answer:
true
Explanation:
All living things need nitrogen to build proteins and other important body chemicals. However, most organisms, including plants, animals and fungi, cannot get the nitrogen they need from the atmospheric supply.
12. Which color of visible light extends to the deepest depth in the open ocean?
O A, Blue
O B. Yellow
O C, Red
OD. Orange
Answer: Blue is the answer
Which of the following is an example of homeostasis? A. During a time of high stress, Justin's heart races, his muscles tense, and he feels sweat dripping down his forehead. B. Sick with the flu, Alison's body temperature rises to fever levels. C. Boris doesn't drink very much water one day. To compensate, his kidneys remove less fluid from his blood, and produce less urine than normal. D. As Grace races up the ten flights of stairs to her apartment, the muscle cells in her legs produce excess lactic acid, causing a burning sensation in her legs.
Answer:
C.
Explanation:
Homeostasis refers to the tendency for the human body to attempt to maintain a certain state even during changes in environment, activity, intake, etc. Options A, B, and D all refer to instances where the body departs from its usual state. While the scenario in Option C does describe a change in environment, it also describes the reaction of the body that brings its internal systems back to a certain state of fluid level.