is there no picture with it?
Explanation:
please answer the image
B. RNA polymer is blocked from conducting transcription of the genes needed for processing lactose when the repressor is bounded to the operator.
Why is lactose necessary for lac operon transcription?The lac operon generally only begins to transcript when there is lactose available for it to digest. This, presumably, prevents energy from being wasted in the manufacture of enzymes for which there isn't a substrate. All three enzyme-coding sequences are present in a single mRNA transcript, which is referred to as polycistronic.
When lactose is present, is the lac operon transcribed?Operator regions that are constitutively active prevent repressor protein binding to the region at all times. As a result, the operon is transcribed whether lactose is present or not since the repressor is unable to prevent RNApol from attaching to the promoter.
would be expressed if lactose was present?As long as lactose is present, the lactose operon will express. The reaction comes to an end when all of the lactose is broken down into glucose and galactose.
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A radio has a resistance of 175 ohms, with a current flowing through it of 700mA. What is the potential difference?
The potential difference (voltage) across the radio is 122.5 volts.
How to calculate the potential difference voltage across the radio?First we can use Ohm's law, which states that voltage (V) is equal to the product of current (I) and resistance (R):
V = I x R
In this case, the resistance of the radio is given as 175 ohms, and the current flowing through it is 700 milliamps, or 0.7 amps.
We can plug these values into the equation to get:
V = 0.7 A x 175 Ω = 122.5 volts
Therefore, the potential difference (voltage) across the radio is 122.5 volts.
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A heterozygous man with wet
earwax marries a woman with dry
earwax.
13. Which allele is dominant?
14. Write the parent genotypes below
wet earwax male:
dry earwax female:
Answer: wet earwax is dominant
male:Ee Female:ee
Explanation:
If the male is heterozygous that means he has one dominant and one recessive and dominant traits are stronger than recessive.
Science test on cellular respiration
The correct answer is 2. Our bodies produce a lot of CO₂ and water as waste and that it needs to get rid of through breathing.
Why is breathing necessary?Breathing is necessary to bring oxygen into our bodies and remove carbon dioxide, which is a waste product of cellular respiration. When we eat food, it undergoes a process called cellular respiration, which releases energy in the form of ATP. This process requires oxygen and produces carbon dioxide as a waste product.
While we can store energy from food for later use, we cannot store oxygen or remove carbon dioxide from our bodies without breathing. Therefore, we need to breathe constantly to maintain the supply of oxygen and remove the waste carbon dioxide. In contrast, we can eat a few times a day because our bodies can store excess food energy as fat for later use.
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Describe the timing of evolutionary change according to the punctuated equilibrium model.
According to the punctuated equilibrium model, evolution is characterized by long periods of relative stability (equilibrium), interspersed with relatively short periods of rapid change (punctuation).
What is the punctuated equilibrium model?In the 1970s, palaeontologists Niles Eldredge and Stephen Jay Gould put forth this notion.It states that species tend to remain relatively stable for long periods of time, but when they do undergo evolutionary change, it tends to occur rapidly.The process of cladogenesis, in which a tiny population of a species separates off from the larger population and develops independently, is how new species appear in the punctuated equilibrium model.Genetic drift, natural selection, and other mechanisms that can cause fast evolutionary change within a small, isolated population are attributed to the rapid change that occurs during punctuated equilibrium.To know more about the punctuated equilibrium model, visit:
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What type of environment are Echinoderms found in?
terrestrial environment
marine environment
both terrestrial and marine
environments neither terrestrial or marine environments
Answer
All echinoderm species live in the ocean; there are no freshwater or terrestrial echinoderms.
Explanation:
(no need for explanation)
c. "Pruning fruit plants is a significant aspect of fruit farming," Just statement with suitable explanations.
Pruning fruit plants is a significant aspect of fruit farming because it improves the development of plant organs including fruits.
Why Pruning fruit plants improves the development of plant organs?Pruning fruit plants improves the development of plant organs because it enhances the process of allocation of nutrients to different parts of the plant, thereby promoting the development of certain tissues and organs such as in this case fruits.
Therefore, with this data, we can see that Pruning fruit plants improve the development of plant organs through the process of allocation of nutrients.
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14. Frank was out of town for a few days and when he returned, he noticed that
his plant was very wilted. He watered the plant and put it in the sun. A few
hours later, he noticed that it the leaves on the plant had perked up and
looked fine again. The image shows the plants before and after the water
and exposure to sunlight.
Answer:
it sounds like Frank's plant was suffering from dehydration due to lack of water, which caused the leaves to wilt. When Frank watered the plant and put it in the sun, the plant was able to absorb the water and nutrients it needed to recover, which caused the leaves to perk up and look healthy again.
This is a common response for many types of plants when they are dehydrated or stressed. However, it is important to note that different types of plants have different requirements for water, sunlight, and other environmental factors, and it is important to research and understand the specific needs of a particular plant to ensure its long-term health and well-being.
Explanation:
What is the difference between developmental and physiological adaptation?
Group of answer choices
Developmental is based on cultural practices, physiological is driven by genetics
Developmental is irreversible, physiological is reversible
Developmental is genetic, physiological is not
Developmental is reversible, physiological is irreversible
Answer:
developmental is irreversible,physiological is not
1
Evan is a horticulturist working in a greenhouse. He arranges some flowers nearer the windows, others farther away. For the flowers he arranges to
get the most light, what process is Evan MOST likely trying to encourage?
A.fertilization
B.photosynthesis
C. cross-pollination
D. phototropism
reserved.
Phototropism is the process that Evan is most likely trying to encourage by arranging the flowers nearer the windows to get the most light. Thererfore, option (D) is correct.
What is Phototropism?Phototropism is a growth response in plants in which they orient their stems or leaves towards or away from a light source. The process is controlled by a plant hormone called auxin, which moves away from the light and accumulates on the shaded side of the plant. This accumulation causes the cells on the shaded side to elongate, which results in the plant bending towards the light.
Phototropism is critical for the survival and growth of plants, as it enables them to maximize their exposure to light for photosynthesis. The process is also important for the efficient use of resources, as it allows plants to direct their growth towards the most favorable light conditions and avoid shading by neighboring plants.
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Compare the running costs
The running costs of a car and a bicycle are very different.
What is running?Running is a form of physical activity which involves moving quickly on foot, using alternate movements of one's legs to propel the body forward. It is a type of aerobic exercise and is a popular form of exercise, as it is convenient and can be done almost anywhere. Running can have a range of different benefits, including improved physical fitness, weight loss, improved heart health, and improved mental health. .
A car has much higher running costs because it requires fuel to run, which can be expensive depending on the type of fuel and how much is used. It also requires regular maintenance such as oil changes, tire rotations, and other repairs, which can add up. In addition, car insurance and registration fees may apply.
A bicycle, on the other hand, has much lower running costs. The main cost associated with a bicycle is the initial purchase price, and any maintenance needed is usually minimal, such as cleaning the chain or tightening the brakes. The only other cost associated with a bicycle is the cost of any accessories, such as lights or a lock.
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PLS HELP ILL GIVE U 50!!!! I NEED IT FOR MY FINAL GRADE
Using a claim-evidence-reasoning structure, construct an explanation of why the drought caused the lions' home range and movement patterns to change.
In which form of cell division (mitosis or meiosis) is genetic diversity created? Please specifically explain where and how diversity is produced.
Genetic diversity is created in meiosis, specifically during meiosis I, through the processes of crossing over and independent assortment.
What happen during meiosis?
During meiosis, the cell undergoes two rounds of cell division, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell. Before the first division, the homologous chromosomes pair up and exchange segments of DNA through a process called crossing over, which results in the exchange of genetic material between the paired chromosomes. This process creates new combinations of alleles on the chromosomes, increasing genetic diversity.
During meiosis I, the homologous chromosomes also segregate independently of each other. This means that the two alleles of a gene on one chromosome can end up in either daughter cell, independent of which alleles of other genes end up in the same cell. This random segregation of chromosomes results in a unique combination of alleles in each of the daughter cells, further increasing genetic diversity.
Therefore, meiosis is the form of cell division that produces genetic diversity through the processes of crossing over and independent assortment.
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Which statement is true about air temperature and humidity?
The air temperature does not affect how much moisture the air can hold.
Hotter air holds less moisture than colder air.
Hot air and cold air hold the same amount of moisture.
Colder air holds less moisture than hotter air.
Colder air holds less moisture than hotter air. As the temperature of the air increases, the amount of moisture that the air can hold also increases. This is because warm air molecules are more spread out and have more space to hold water vapor. When air cools, the molecules move closer together and there is less space for water vapor, so the air can't hold as much moisture.
Therefore, when the air is humid, it means that there is a high amount of moisture in the air relative to the temperature. Conversely, when the air is dry, it means that there is a low amount of moisture in the air relative to the temperature.
Which term describes foreign molecules that activate the immune system? antigens phagocytes lymphocytes antibodies
Antigens are the foreign molecules that cause the immune system to become active.
What kind of foreign molecules cause the immune system to respond?Antigens are any substances that the immune system can recognise and that can afterwards cause an immunological reaction. When considered dangerous, antigens can cause the body to respond with an immune response (for instance, if they potentially spread disease).
What do you call the chemicals that activate the immune system?antigen, a substance that can cause lymphocytes, the body's white blood cells that combat infections, to get activated by the immune system. An antigen is something that causes your immune system to produce antibodies in response to it. This suggests that because your immune system does not recognise the chemical, it is making an effort to fight it.
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The sun is also the reason .... exist. The.... is moving air.
The same word fills in both blanks.
Your answer
The sun is also the reason wind exist. The wind is moving air.
What is Wind?This is referred to as the movement of air, caused by the uneven heating of the Earth by the sun and the Earth's own rotation.It is also caused by differences in air pressure within our atmosphere as air under high pressure moves toward areas of low pressure.
Due to the uneven heating of the earth's surface by the sun, the earth's surface is made up of different types of land and water, and it absorbs the sun's heat at different rates thereby leading to the daily wind cycles which are observed and is thereforetrhe reason why it was chosen as the corect choice.
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How did agriculture allow for the development of civilizations?
Answer:
Explanation:
Agriculture was developed approximately 10,000 years ago. Agriculture has allowed development of people by being able to grow more food and reproduce livestock more quickly and efficiently. Having more food and livestock opens an opportunity for humans to reproduce more than they once did. therefore, agriculture allowed people to create civilizations because they can grow bigger families and larger groups of people creating civilizations.
Answer:
Agricultural communities developed approximately 10,000 years ago when humans began to domesticate plants and animals. By establishing domesticity, families and larger groups were able to build communities and transition from a nomadic hunter-gatherer lifestyle dependent on foraging and hunting for survival.
PLEASE ANSWER THIS SUPER FAST
Answer: The answer is B
Hope this helps!
why does cell division occur
Cell divisions occurs for re[production and for the sake of repair
Why does cell division occurCell division occurs for several reasons, including:
Growth: Cells divide to increase the size and number of tissues and organs during growth and development.
Repair and Regeneration: Cells divide to replace damaged or dying cells and to repair tissues after injury or disease.
Reproduction: Cells divide to produce offspring during asexual reproduction, such as in unicellular organisms, or to produce gametes for sexual reproduction.
Maintenance: Cells divide to maintain the balance between cell loss and cell division in tissues that require constant renewal, such as the skin, blood, and intestinal lining.
Overall, cell division is essential for the growth, development, and maintenance of all living organisms. It allows for the formation of new cells, the repair of damaged tissues, and the production of offspring.
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Submit a one-paragraph summary describing the topic you chose, your model, what it represents, how you made it, and the specific science involved. It is important that you are using science terminology and are accurate.
I just need you to explain the science involved with specific terminology for the diagram below. Like the processes below described in detail!
The given diagram shows the process of photosynthesis that takes place in sunlight, carbon dioxide and water.
ProcessThrough a process called photosynthesis, plants and other living things may transform light energy into chemical energy that can then be released through cellular respiration to power their activities. The name "photosynthesis," which comes from the Greek words for "light" and "putting together," refers to the process whereby some of this chemical energy is stored in carbohydrates, such as sugar and starch molecules, which are produced from carbon dioxide and water. Photoautotrophic organisms, such as the majority of plants, algae, and cyanobacteria, carry out photosynthesis. The majority of the energy required for life on Earth is produced and maintained through photosynthesis, which is also primarily responsible for producing and maintaining the oxygen concentration of the Earth's atmosphere.For more information on photosynthesis kindly visit to
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what is flower in biology?
Answer:
A flower, the characteristic reproductive structure of angiosperms. As popularly used, the term “flower” especially applies when part or all of the reproductive structure is distinctive in color and form.
What is represented by letter D?
•Attachment protein
•Junction protein
•Glyco-protein
•Active transport protein
Active transport protein symbolizes the letter D. These proteins contain receptors that attach to particular molecules (like glucose), transport it across the cell membrane, and then re-bind to other molecules.
Which three proteins are involved in active transport?One particular ion or molecule is transported by a uniporter. Two distinct ions or molecules are transported by a symporter in an identical direction. In addition, an antiporter transports two distinct particles or ions, but in opposite directions.
Are enzymes active transport proteins?Transmembrane ATPases, an engine that traverses the cell membrane, are responsible for the majority of primary active transport. The enzyme potassium adenosine triphosphates is present in all animal cells (ATPase).
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Which of these best explains why the use of fossil fuels for energy production is a not a long-term solution to the world's energy needs? A. They contribute to water and air pollution problems. B. There is a limited amount of fossil fuels available. C. The mining of fossil fuels creates environmental issues. D. They release excessive heat energy when they are used.
A
Explanation: Its always A
PLEASE HELP!!!! POINTS
create a pedigree diagram for an imaginary family pick a trait and designate it as a dominant then shade the boxes to show who has recessive genes who has dominant genes and who is likely heterozygous
In a pedigree, family information is displayed in a chart that is simple to read.
What is Pedigree diagram?The term "family tree" might be used to describe it. Squares and circles are the conventional symbols used in pedigrees to denote males and females, respectively.
The building of a pedigree is a family history, and when memories fade, information about a previous generation may be hazy.
In terms of genetics, a pedigree is a diagram that shows how a trait or medical condition is passed down through a family's generations. When information is available, the pedigree specifically demonstrates the ties between family members and identifies which relatives possess the desired trait(s).
Therefore, In a pedigree, family information is displayed in a chart that is simple to read.
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Please answer !!
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Place the pieces on the appropriate spot on the diagram.
Based on the image, the temperatures are:
a. Normal day: 32 C
b. Snowy day: 32 F
c. Boiling water: 212 F
d. Meat: 212 F
e. Sunny day in the desert: 100 F
What is temperature?Temperature is a physical quantity that measures the degree of hotness or coldness of an object or a system. It is a fundamental concept in physics and is commonly measured in units of Celsius (°C), Fahrenheit (°F), or Kelvin (K). Temperature is related to the average kinetic energy of the particles that make up a substance or system.
When the temperature of a substance or system increases, the average kinetic energy of the particles also increases, leading to expansion, changes in state, and chemical reactions. Temperature plays a crucial role in many fields, including thermodynamics, meteorology, chemistry, and engineering. Accurate temperature measurements are essential in many applications, such as industrial processes, climate monitoring, and medical diagnostics.
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Identify the greatest ecological harm that results from the practice of tilling.
The greatest ecological harm that results from the practice of tilling is soil erosion, which is present in Option A, as tilling involves the mechanical disruption of the soil, which can lead to soil loosening.
What is soil erosion?Soil erosion can have significant ecological impacts, including the loss of valuable topsoil, reduced soil fertility, and increased sedimentation in nearby waterways, tilling is a common agricultural practice that involves mechanically breaking up the soil and causing erosion, which has many harmful effects on the soil.
Hence, the greatest ecological harm that results from the practice of tilling is soil erosion, which is present in Option A.
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question is incomplete, complete question is below
Identify the greatest ecological harm that results from the practice of tilling.
a)soil erosion
B)increase fertility of soil
1. The system of assigning each organism a
scientific name consisting of two parts is
known as?
A. Genus species
B. Geographic isolation
C. Binomial nomenclature
D. Common ancestor
Answer:
C. Binomial nomenclature
Explanation:
Binomial nomenclature is the system of naming organisms using two parts, the genus name followed by the species name, such as Homo sapiens (the scientific name for humans). This naming system was developed by Swedish botanist Carl Linnaeus in the 18th century and is still used today by scientists worldwide. It helps to provide a standardized and universally recognized way of identifying and classifying different species of organisms.
A box with a weight of 650 N is sitting on the ground and the bottom of the box measures 0.35m squared. What is the pressure exerted by the box on the ground?
The pressure exerted by the box on the ground can be calculated using the formula:
Pressure = Force / Area
where Force is the weight of the box and Area is the bottom surface area of the box.
Given that the weight of the box is 650 N and the bottom surface area of the box is 0.35 m², we can substitute these values into the formula to get:
Pressure = 650 N / 0.35 m²
Pressure = 1857.14 Pa
Therefore, the pressure exerted by the box on the ground is 1857.14 Pa (Pascals).
If this were a traditional "face to face" A&P lab and you were examining real human bones from your "box of bones," you'd notice that the xiphoid process is not attached to the sternum and is floating around the bottom of the box, or it's lost completely. Why do you think this may be such a common occurrence? HINT: Think about how it is attached - what holds it in place when we're alive?
Answer:
gravity
Explanation:
because is says it has zero gravity
All of the variety of life that can be found on Earth is
known as biodiversity. This includes all living organisms, including plants, animals, fungi, and microorganisms, as well as their genetic diversity and the ecosystems in which they live. Biodiversity is important because it provides a wide range of ecosystem services that humans rely on, such as clean air and water, soil fertility, climate regulation, and food security. It also has cultural and aesthetic value and is important for scientific research and education. However, biodiversity is under threat from human activities such as habitat destruction, pollution, climate change, and overexploitation of natural resources, and conservation efforts are needed to protect it.