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Answer: Your answer is The Lac Repressor
Explanation: I've taken this test before, it is correct.
Related Questions
When a stone is dropped into water, it disturbes the surface of the water, this is called
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When a stone is dropped into water, it disturbs the surface of the water, and this is called "ripples" or "waves".
The disturbance caused by the stone creates waves that travel away from the point where the stone entered the water. These waves can be seen as ripples spreading outwards from the point of impact. The size and shape of the ripples depend on various factors, such as the size and weight of the stone and the depth and temperature of the water.
As the waves move away from the point of impact, they carry energy with them. This energy is transferred to the water molecules as the waves pass by, causing them to move up and down. The movement of the water molecules creates a wave pattern that can be seen on the surface of the water.
The ripple effect caused by a stone dropped into water is a simple example of how energy is transferred through a medium. It is also a common visual metaphor used to describe the way in which small actions can have large and far-reaching consequences, as the ripples caused by the stone continue to spread outwards in all directions, affecting everything in their path.
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Cystic fibrosis is an autosomal recessive disorder where a chloride ion membrane channel protein doesn't function properly. People with cystic fibrosis suffer from chronic lung infections that make breathing very difficult. They also suffer from other issues such as an inability to produce enough digestive enzymes due to problems with pancreas cells. Suppose that Chris and Shannon are both carrier of cystic fibrosis (carriers have the allele but do not exhibit the disorder). What is Chris' genotype for the cystic fibrosis gene
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Answer: Typically, the genotype in those patients consists of at least one very mild mutation uncharacteristic for CF patients. These are predominantly missense or splice variants, belonging to classes IV or V producing variable amounts of functional CFTR protein at the apical membrane.
Which step happens first in translation?
A. The amino acids form peptide bonds.
• B. A tRNA molecule attaches to a codon.
• C. The ribosome reaches the start codon.
• D. The amino acid pulls apart from tRNA.
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Answer:
A. A tRNA molecule attaches to a codon.
Explanation:
The first step of translation is that a tRNA molecule attaches to a codon. These tRNAs (transfer RNAs) bring the amino acids to the ribosome - rRNA complex, where they connect to the codons and are arranged into a full protein.
how are organisms organized from simple to complex
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Answer:
organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
think from small to large
In a certain breed of dog spotted fur color is dominant over solid fur color. Smooth fur is dominant over rough fur. If a heterozygous spotted colored dog with rough fur is mated to a solid-colored, homozygous smooth-furred dog provide the ratio of possible phenotypic outcomes.
a
1 spotted smooth : 1 solid smooth
b
3 spotted smooth: 1 solid rough
c
1 spotted smooth: 1 solid smooth: 1 solid smooth: 1 solid rough
d
1 spotted smooth: 1 spotted rough
Answers
The possible phenotypic outcomes and their ratios are:
Spotted smooth: 1 SsPp
Solid smooth: 1 ssPP
The genotype of the heterozygous spotted-colored, rough-furred dog is SsRr, where S is the dominant allele for spotted fur color, s is the recessive allele for solid fur color, R is the dominant allele for rough fur, and r is the recessive allele for smooth fur.
The solid-colored, homozygous smooth-furred dog's genotype can be expressed as ssrr.
The offspring's phenotypic ratio can be computed by counting the number of individuals with each phenotype and expressing the result as a ratio. The various phenotypic outcomes and their ratios in this scenario are:
1 smooth-furred spotted: 1 smooth-furred solid
1 solid, rough-furred: 3 spotted, smooth-furred
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What happens to certain nutrient molecules after they pass into muscle cells?
A.
They are replicated in the nucleus
B.
They are acted on by enzymes and release the energy they contain.
c.
They are changed into tissues and organs in the cytoplasm.
D.
They enter chloroplasts, where they can absorb light energy.
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Answer:
B. They are acted on by enzymes and release the energy they contain.
Explanation:
Muscles need energy to function thus these molecules make their way into muscles where enzymes act on them to release the energy, energy will likely be ATP.
Any know how to number these I keep getting them wrong
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The graphic organizer about DNA given in the question is as follows:
1. Hereditary information
2. Genes
3. Histone
4. Condense
5. Double helix
6. Nucleotides
7. Phosphate
8. Adenine
9. Cytosine
Give a brief account on DNA.DNA, abbreviation for deoxyribonucleic acid, is an organic chemical with a complex molecular structure found in the nucleus of all prokaryotic and eukaryotic cells and many viruses. DNA encodes genetic information to transmit inheritable traits.
Chemical DNA was firstly discovered in 1869, but its role in heredity was not established until 1943. In 1953, James Watson and Francis Crick, with the help of biophysicists Rosalind Franklin and Maurice Wilkins, determined that the structure of DNA is a double-helical polymer. This breakthrough has greatly advanced scientists' understanding of the genetic control of DNA replication and cellular activity.
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Please help, I’ll give brainliest!
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because nucleus DNA would be destroyed
A dichotomous key is a helpful identification and classification tool. Scientist also use genetics (DNA) to classify organisms? Now that we know a little more about dichotomous keys, which is a more accurate way to classify organisms? Explain.
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Both dichotomous keys and genetics (DNA) can be used as tools to classify organisms, but the accuracy of classification depends on the context in which they are used.
What is a more accurate way to classify organismsDichotomous keys are useful for identifying and classifying organisms based on observable physical characteristics, such as their shape, color, size, and other morphological features. These keys work by providing a series of paired statements that help the user narrow down the possible identification of an organism until a final identification is reached. Dichotomous keys are particularly useful for identifying and classifying organisms that are difficult to differentiate based on external characteristics.
On the other hand, genetics (DNA) is a more accurate way to classify organisms at the molecular level. DNA analysis allows scientists to compare the genetic information of different organisms and identify similarities and differences in their DNA sequences. By comparing the DNA sequences of different organisms, scientists can determine their evolutionary relationships and classify them into different groups. DNA analysis is particularly useful for identifying and classifying organisms that are difficult to differentiate based on external characteristics or for organisms that have evolved to look similar to each other.
In summary, both dichotomous keys and genetics (DNA) are useful tools for classifying organisms, but DNA analysis is generally considered to be a more accurate way to classify organisms as it provides a more detailed and precise understanding of their evolutionary relationships.
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In two or more complete sentences explain how geologists use relative dating, absolute dating, fossil data, and rock strata sequences to determine ages of rocks.
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Answer: Relative dating is used to determine a fossil's approximate age by comparing it to similar rocks and fossils of known ages. Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.
Explanation:
Carbon dating is used by geologists to identify the age of the fossil. It gives the estimation of the age.
What is carbon dating?
Carbon dating is a method of age determination. Radioactive isotopes such as carbon-14 are used for age determination which decays over a period of time by atmospheric nitrogen.
Atmospheric radioactive carbon(C-14) and carbon -12 are passed to green plants by the carbon cycle. Plants pass to animals by the food chain, hence it is an integral part of the chain. After the death of an organism, absorption of the C-14 stops. The half-life of C-14 is 5,730 years after which it starts decaying.
As the C-14 decays at a constant rate, it becomes easy for scientists to determine when the organism died by measuring the radioactive C-14 residues.
Therefore, Carbon dating helps in the determination of the age of organisms or rocks by residual analysis of carbon-14.
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i’m confused helpppp:)
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Answer:
A
Explanation:
Answer:
B
Explanation:
I believe this is the answer.
6. Randall wanted to do a few tests to analyze a mineral. He started by rubbing and
Scratching it to see what color dust the mineral left behind. What property of
minerals is Randall testing?
a) Cleavage
b) Streak
C) Luster
d) Hardness
I chose
because
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EXPLANATION:
The test Randall did is called a Streak Test. By scratching a rock on unglazed porcelain, a small amount of dust or powdered mineral will be left behind on the plate. This small amount of powdered mineral is called a 'streak'.
ANSWER: The property being tested is B) Streak to identify the unknown mineral Randall has.
cells within the tissues of adult organisms are constantly being replaced, yet the tissues remain the same size. Which description BEST explain this?
the rate of cell death is lowerthan the rate of cell division
the rate of cell death and cell division are equal
the rate of cell death is grater than the fate of cell division
the rate of cell death is more predictable than the rate of cell division
Answers
Best description to explain cells within the tissues of adult organisms are constantly being replaced, yet the tissues remain the same size is
b. the rate of cell death and cell division are equal.
In general , the presence of cell organelles namely, lysosomes it is concluded that cells have a life span and death as seen in a living entity. This is well known that cell age, deteriorate, get damaged and die through a process known as apoptosis.
Hence, Apoptosis is an active, programmed process of autonomous cellular replacement that avoids eliciting inflammation. Necrosis has been characterized as passive, accidental cell death resulting from environmental disturbance.
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If 6.6 tyrannosaurs weigh 30,000 kg, then what does one tyrannosaur weigh?
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Answer:
4,545
Explanation:
Calculator boyy!!!!!
SC.8.L.18.3
The table below shows three carbon cycle processes.
Process
animal respiration
volcanic eruption
fossil fuel combustion
Three Carbon Cycle Processes
One Type of Chemical Reaction Occurring
During the Process
sugars + oxygen carbon dioxide + water + energy
carbon monoxide + oxygen carbon dioxide + energy
hydrocarbons + oxygen carbon dioxide + water + energy
+
How do all three of the processes listed in the table affect another geochemical cycle?
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Answer:
what's the question?
Explanation:
Which of the following is false about protists?
a) They include the algae.
b) They are important components of plankton.
c) Flagella occur in many different protist groups.
d) They live in very dry environments.
e) They can be free living or symbiotic.
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The statement which is not true about protists is :
They live in very dry environments.
( Protists live in lakes, rivers, oceans, ponds and wet sediments. Since they are microscopic organisms, they can live in just about any part of the world that has traces of water to support their life).
What do you mean by protists?
Protists are a diverse collection of organisms that do not fit into animal, plant, bacteria or fungi groups. While exceptions exist, they are primarily microscopic and made up of a single cell (unicellular).
Protists are eukaryotes as they possess a nucleus and other membrane-bound organelles (structures that perform a specific job).
At one time, simple organisms such as amoebas and single-celled algae were classified together in a single taxonomic category: the kingdom Protista. However, the emergence of better genetic information has since led to a clearer understanding of evolutionary relationships among different groups of protists, and this classification system was rendered defunct. Understanding protists and their evolutionary history continues to be a matter of scientific discovery and discussion.
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They live in very dry environments. - False. Protists are mostly aquatic and live in watery environments, although some live in moist environments and some are parasitic.
What is Protists?
Protists are a diverse group of single-celled or multi-cellular eukaryotes that are not classified as animals, plants, or fungi. They are found in virtually every habitat on Earth, ranging from the deepest oceans to the highest mountains. Protists are essential to many ecosystems, serving as both primary producers and consumers. Examples of protists include amoebas, algae, slime molds, and diatoms. Protists have a variety of shapes and sizes, and many have adapted to live in extreme conditions. As a result, they play a major role in the cycling of nutrients throughout ecosystems. Protists are also important in human health and medicine, as some are used in the production of antibiotics, food, and other medical treatments.
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The diagram represents the water cycle. Which arrow includes the process of transpiration?
a. arrow 1
b. arrow 2
c. arrow 3
d. arrow 4
Answers
Answer:
b. arrow 2
Explanation:
Arrow 2 includes the process of transpiration. During transpiration, water is lost from plant surface and the stomata as a vapor. This water is taken into the atmosphere where it cools and condenses.
The arrow 2 signifies evaporation. Evaporation is a phase change from liquid to gasThis is an important aspect of the water cycle also. Surface water, water from plants and animals are evaporated They are changed into vaporAs they reach the atmosphere, they begin to cool.6. During the 1990s, natives of tropical islands began collecting wild turtles to sell in the United States as pets. One of these turtle species, a voracious carnivore that feeds on shrimp and snails, was especially popular. Recently, the U. S. government banned the import of these turtles as pets. However, pet owners have released large numbers of unwanted turtles into warm natural waters of the Gulf of Mexico.
Predict two possible consequences of the release of these turtles into Gulf waters, including the effect on native turtle species. Justify your response.
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Two possible consequences of the release of these turtles into Gulf waters, including the effect on native turtle species are
Competition with native turtle speciesAlteration of ecosystem dynamicsWhat are possible consequences of the release of these turtles into Gulf waters?An invasive turtle species poses direct competition with native turtles within Gulf of Mexico, resulting in possible shrinkage in population sizes for the latter group. Resource scarcity driven primarily by competition over access to nests, habitats and food sources can render natives less effective at these activities compared to their new rivals.
Furthermore, identifying underlying consequences triggered by invasive species' potential alteration of ecosystem dynamics (eg: substantial loss or balanced gain) remains crucial for further consideration. The issue of climate change represents an imminent danger that threatens the well-being of our planet. Swift action from all corners of society is required, including private citizens, companies, and governing bodies across national borders.
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Which of the following are correct? (Select more than one answer) Select 2 correct answer(s) Question 4 options: A small amount of heat energy is transferred to a consumer on the next trophic level. A small amount of chemical energy is transferred to a consumer on the next trophic level. A large amount of heat energy is lost before predation. A small amount of heat energy is lost before predation.
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The options that are correct are:
Option A: A small amount of heat energy is transferred to a consumer on the next trophic level. Option D: A small amount of heat energy is lost before predation.How can a food chain lose energy through heat?The energy does not always move up the food chain from one level to the next. 90% of energy may be lost as heat (emitted during respiration), through motion, or in foods that people cannot digest. Decomposers can use the energy held in undigested items.
Note that Each trophic level's energy content diminishes as it progresses through an ecosystem. At any given trophic level, only 10% of the energy is transmitted to the next level.
Thus, the remaining 90% is primarily wasted as heat during metabolic activities.
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•Is the invasive species ‘kudzu’ toxic? •Is it considered a predator? Answer in a short 3 sentences In your own words ^
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Kudzu as an invasive species is considered as a destructive and deadly weed. It has the abililty to envelope a very wide range of habitat rendering other species the inability to grow or be wipe out. It is also considered as a predator because of its characteristic to kill other species. Its difficulty to be eradicated makes it a very noxious species.
When did Mendel complete his study on peas?
O 1900
O 1905
O1866
O 1877
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Answer:
the answer is 1866
What is the flexibility of spider silk determined by the structure of its molecules
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The flexibility of spider silk determined by the structure of its molecules is quite strong.
The components that make up spider silk are what give it its flexibility. Proteins called fibroins, which are made up of amino acids organised in a certain sequence, make up spider silk. The arrangement of amino acids in fibroin proteins results in a helical structure, which is held together by hydrogen bonds between the amino acids.
The fibroin protein chain's exact arrangement of amino acids and hydrogen bonds produces a special blend of strength and flexibility. The silk is flexible enough to stretch and absorb energy without breaking and robust enough to resist significant stress. Spider silk is a fantastic material for many uses, including clothes, medical equipment, and even bulletproof vests, thanks to its unique mix of qualities.
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What’s everyone’s favorite tv show or movie?
Answers
I dont watch tv shows or movies
lol
СWhich of the following is a way to conserve water?a. taking longer showersb.reusing water in a factory to cool hot machineryc. letting the water run while you brush your teethd.using open ditches to carry water for irrigation
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The answer is the letter b.reusing water in a factory to cool hot machinery- is a way of conserving water
*Reusing of water helps in conserving water usage.
*All of the other choices are means of wasting water resources.
What is the next stage after the body plan is established?
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Answer:
Origin. 20 out of the 36 body plans originated in the Cambrian period, in the "Cambrian explosion", However, complete body plans of many phyla emerged much later, in the Palaeozoic or beyond.
d. What do your data tell you about how the intensity (amount) of light affects
the rate of photosynthesis performed by the plant? Remember that a rate
involves a change in amount over time. Does this answer make sense? Why
or why not?
Answers
This answer is supported by scientific research and makes sense based on the principles of photosynthesis. However, it's important to note that scientific knowledge is continuously evolving, and there may be further advancements or refinements in our understanding of photosynthesis and its relationship with light intensity since my knowledge cutoff in September 2021.
Based on the available data up until September 2021, it is well established that the intensity of light significantly affects the rate of photosynthesis in plants. Photosynthesis is the process by which plants convert light energy into chemical energy (glucose) that they can use as a source of fuel.
In general, as the intensity of light increases, the rate of photosynthesis also increases, up to a certain point. This relationship is often described by the concept of the "light saturation point." At low light intensities, the rate of photosynthesis is limited by the availability of light energy. As the light intensity increases, the rate of photosynthesis also increases because more photons are available for the plant to capture and convert into chemical energy.
However, beyond a certain light intensity, the rate of photosynthesis reaches a maximum level, and further increases in light intensity do not lead to a proportional increase in the rate. This is because other factors, such as the availability of carbon dioxide or the capacity of the plant's biochemical processes, become limiting factors.
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explain how matter cycles through the carbon cycle.
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People who engage in extreme sports often do so to feel the rush of epinephrine and norepinephrine. This hormone rush comes from the _____ glands.
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People who engage in extreme sports often do so to feel the rush of epinephrine and norepinephrine. This hormone rush comes from the adrenaline rush glands.
Extreme sports are popular among those who want to experience the rush of hormones. The thrill they experience from the chemicals adrenaline and norepinephrine is caused by: brain networks. adrenal glands. Extreme sports enthusiasts frequently do so to experience the surge of adrenaline and norepinephrine.
Some folks appreciate the buzz that adrenaline provides. They may choose to engage in intense sports or activities in order to deliberately release adrenaline into their bodies.
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A scientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas.
Which group of statements best describe all of the materials he is using in the investigation?
They are each compounds. Each of the compounds is made of atoms. All of the atoms are made of matter.
They are each made of matter. Some are compounds and some are elements. They all contain atoms.
They are all elements. Some contain molecules of the same type of atom. Some contain different types of atoms,
They are each made of matter. Some are compounds made of one type of element. Some are pure atoms.
Answers
Answer:
its D
Explanation:
Answer:
d
Explanation:
edge 2020
Which of the following decreases the life expectancy of a population?
I. High infant mortality
II. Poor sanitation
III. Adequate healthcare
Answers
Answer:
poor sanitation
Explanation:
sanitation increases the life expectancy of a population. The time that it would take for the population to double is about 7 years. It is true that overpopulation can lead to malnutrition and decreased food production.
Answer:
Poor sanitation decreases the life expectancy of a population.
Explanation:
Poor sanitation causes a health hazard, health hazards cause diseases, especially those that relate to the digestive system.
Some of these diseases are fatal while some of them are extremely harmful. If proper medication is not taken early enough they might end up fatal or even chronic.
This is where life expectancy comes in ;
When a good percentage of the population is affected by diseases resulting from poor sanitation then statistically, the life expectancy is very low.
An example is the third world countries in Africa like Zimbabwe where diseases affect a great number of people hence the life expectancy is critically low.