Answers
the answer is false Because it is so thin, DNA cannot be seen by the naked eye unless its strands are released from the nuclei of the cells and allowed to clump together.
Related Questions
In a hypothetical study, the investigator wants to look at the association between exposure to pesticides in the workplace and the development of asthma. The investigator selects a large group of individuals who work on PLTW farms across the country and follow them over ten years to determine who develops asthma. Of the 318 individuals exposed to pesticides, 69 develop asthma. 990 individuals worked in areas that were free of exposure to pesticides. 903 are asthma-free after ten years.
Is the hypothetical study a prospective or retrospective cohort study? Explain your answer.
Create the corresponding data table to show the results of this study.
Calculate the appropriate measure of association for this data. Show your work.
Interpret your results. What does this measure of association tell you about the development of disease?
Describe a weakness of this study design. How does this weakness affect overall reliability of results?
Answers
1) Prospective cohort study. 2) Table below. 3) Relative risk = 2.466. 4) The risk of developing asthma is greater in people exposed to the pesticide than in people not exposed to it. 5) Not knowing other risk factors that could cause asthma.
What are prospective and retrospective cohort studies?
Prospective and retrospective studies are carried out depending on the aim of the research.
Retrospective studies analyze the reason for which something occurred or explain an event or recent discovery.
Individuals from the study groups in these cases have already been affected.
Prospective studies are carried out to predict a future event.Most individuals from the study groups in these cases have not been affected. However, some of them might have been or might have high risks of being affected.
1)
The exposed study case is an example of a prospective cohort study.
It analyzes the connection (relationship) between being exposed to the pesticide and being affected by asthma.
It is carried out to predict if people exposed to pesticides have more chances of developing asthma or not.
2) Data
Total number of individuals exposed to pesticides: 318Individuals who developed asthma: 69Individuals who did not develop asthma: 249Total number of individuals not exposed to pesticides: 990Individuals who developed asthma: 87Individuals who did not develop asthma: 903Pesticide Expossure Asthmatic Not Asmathic Total
Yes 69 249 318
No 87 903 990
Total 156 1152 1308
3) Measures of association
Exposed people
attack rate = affected people with asthma / exposed people
attack rate = 69/318
attack rate = 0.217
Attack rate for peope exposed to pesticide, ARE = 0.217
Not Exposed people
attack rate = affected people with asthma / not exposed people
attack rate = 87/990
attack rate = 0.088
Attack rate for peope not exposed to pesticide, ARNE = 0.088
Being exposed
Relative risk = ARE / ARNE
Relative risk = 0.217 / 0.088
Relative risk = 2.466
4) Interpretation:
Relative risk = 1 ⇒ the risk of being affected is the same for the exposed and unexposed groups. Being exposed is not related to being affected.Relative risk > 1 ⇒ the risk of being affected is greater for the exposed group than for the unexposed group. Being exposed is closely related to being affected.Relative risk < 1 ⇒ the risk of being affected is greater for the unexposed group than for the exposed group.In the exposed example, relative risk is greater than 1 (Rr>1)
This means that the risk of developing asthma is greater in people exposed to the pesticide than in people not exposed to it.
Pesticide exposure might be a significant risk factor for asthma development.
5) Weakness of this study design
A weakness of the study could be that no other risk factor is considered.
There could be another factor affecting people and causing asthma development. This factor could be affecting both groups.
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The next generation of lizards has 1092 individuals with green scales and 108 individuals with blue scales. is the population in hardy-weinberg equilibrium? solve for p and q.
Compare the frequencies here with those in the previous question. Then answer: Is the population in Hardy-Weinberg Equilibriam (yes or no)
PREVIOUS FREQUENCIES::
p=0.8
q=0.2
p^2=0.64
Answers
The population is not in hardy weinberg equilibrium, because it does not match the previous generation.
What is the population in Hardy-Weinberg Equilibrium?The frequency of individuals = individuals/total population
The frequency of Green individuals = 1092/1200
The frequency of Green individuals = 0.91
q² = 0.91
√ q² = √0.91
q = 0.953
By using the first Hardy-Weinberg equation:
p + q = 1
p + 0.953 = 1
p = 1 - 0.953
p = 0.046
Therefore, the population does not match the previous generation.
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PLEASE ANSWER ASAP!!!!
Video: Small Rockets Are the Next Space Revolution
1. What are the three things that you must do if you want to democratize space? Briefly explain each of these things.
2. How often can this private company launch a rocket in New Zealand? Why could it be difficult to launch this often?
3. How does this company manufacture its rocket engines? How fast can they make these?
4. What causes the most “space junk”? How does the Electron rocket help fix this problem?
Video: Sunita Williams of NASA Provides a Tour of the ISS Orbital Laboratory
1. How do astronauts sleep in zero gravity? Where are the sleep stations located?
2. How have the spacesuits changed since first designed in 1997?
3. What continent was the space station viewing? How did Sunny know this?
4. How do spacecraft attach to the space station?
5. Do you think Sunny should have put her hair in a ponytail? Why or why not?
Answers
To democratize space, you must:
Make space travel more affordable.Make space travel more accessible.Make space travel more sustainable.Making space travel more affordable can be done by reducing the cost of launch vehicles and other equipment. This can be done through innovation and competition.
Making space travel more accessible can be done by opening up space travel to a wider range of people, including scientists, engineers, entrepreneurs, and artists.
Making space travel more sustainable can be done by reducing the environmental impact of space travel. This can be done by using more efficient launch vehicles, by developing new technologies to reduce waste, and by recycling and reusing materials.
Rocket Lab can launch a rocket in New Zealand about once a week. This is because New Zealand has a relatively stable climate and a long coastline, which makes it ideal for launching rockets.
How are o explain the informationRocket Lab manufactures its rocket engines using a process called additive manufacturing. This process allows them to create complex parts quickly and easily. They can make a rocket engine in about a week.
The most common cause of space junk is the collision of two objects in orbit. This can create a chain reaction, where each collision creates more debris. The Electron rocket helps to fix this problem by using a new type of rocket engine that is designed to reduce the amount of debris created during a launch.
Video: Sunita Williams of NASA Provides a Tour of the ISS Orbital Laboratory
Astronauts sleep in zero gravity by using sleeping bags that are attached to the walls of the space station. The sleep stations are located in the crew quarters.
Spacesuits have changed a lot since they were first designed in 1997. They are now made of lighter, stronger materials and they have more features, such as built-in computers and cameras.
The continent that the space station was viewing was Africa. Sunny knew this because she could see the Sahara Desert.
Spacecraft attach to the space station using a variety of methods. One common method is to use a grapple fixture, which is a device that is attached to the spacecraft and the space station. The grapple fixture is then used to pull the spacecraft into place.
Whether or not Sunny should have put her hair in a ponytail is a matter of personal opinion. Some people might think that it was necessary to keep her hair out of her face, while others might think that it was not necessary.
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Angiosperms exhibit a great variety of forms, as well as means of obtaining nutrients. Angiosperms can be ___________. (Circle the correct answer.) g
Answers
Answer: Options are not given.
Here are the options.
A. Autotrophs
B. Saprophytic
C. Parasitic.
D. Both a and b.
E. All of the above.
The correct option is all of the above.
Explanation:
Angiosperms are flowers and seed producing plants and their seeds are enclosed in ovary.The angiosperms are vascular seed plants in which the ovule (egg) is fertilized and then develops
into a or become a seed in an enclosed hollow ovary. They are most diverse and largest group of animal kingdom.
Some angiosperms are autotrophs that uses carbondioxide, water and sunlight energy to produce their own food and releases oxygen.
Examples include maize, rice..
Some angiosperms are saprophytic which obtain energy from dead and decaying matter in the soil. They form a symbiotic relationship with fungi. Example is Neottia.
Some angiosperms are parasitic and they attach to their host through haustoria their by feeding on the host and causing harm on the host.
Which statement describes a characteristic of the asthenosphere?
Temperatures are cool.
Consistency is solid.
Thickness is less than crust.
O Pressure is higher than crust.
Answers
Answer:
D
Explanation:
I am taking the test
The statement describes the property of the asthenosphere, which is that the pressure is higher than the earth's crust.
What are the properties of the asthenosphere?The asthenosphere is the denser and weaker layer below the mantle of the lithosphere. It is approximately 100 kilometers (62 mi) and 10 kilometers (255 mi) below the Earth's surface.
The asthenosphere is the part of the upper mantle below the lithosphere that participates in plate tectonic movement and isostatic regulation. It consists of peridotite, a rock that mainly contains the minerals olivine and pyroxene.
The asthenosphere is the mechanically weak and flexible region of the Earth's upper mantle. It is located under the lithosphere, approximately 80-200 kilometers below the earth's surface and extends to a depth of 700 kilometers.
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21. Some fish, some dogs and some children are swimming in a bay. There are 40 legs in total, twice as
many heads as tails and more dogs than fish.
How many fish are in the bay?
Answers
According to the map, which region of Africa receives the most precipitation each year?
Southern Africa
Western Africa
Eastern Africa
Northern Africa
Answers
Answer:
Southern Africa (Madagascar)
Explanation:
Hope it helps<3Residual parent material refers to the *weathered rock* and *soil* that remains in its place of origin, while *transported parent material* is material that has been carried and deposited by natural agents such as water, wind, or glaciers.
The impact of these different types of parent material on *soil formation* can be significant. Residual parent material tends to contribute to the formation of soils with characteristics similar to the parent rock. The weathering process breaks down the rock into smaller particles, allowing for the development of soil horizons and the release of minerals that influence soil fertility. In contrast, transported parent material can introduce a diverse range of materials to a given area, leading to variations in soil composition, texture, and fertility. The transportation process can mix different types of sediment, resulting in the formation of heterogeneous soils with varying properties.
Answers
Residual parent material is the rock and soil that is still located in its original location and is weathered. Transported parent material is material that is carried and deposited by natural agents such as water, wind, or glaciers. The effect of these different types of parent material on soil formation can be significant.
Residual parent material usually contributes to the development of soils with qualities similar to the parent rock. The breakdown of rock into smaller particles through weathering enables the formation of soil horizons and the release of minerals that influence soil fertility.
The physical and chemical characteristics of soils derived from this form of parent material are often similar and homogeneous, allowing for predictable fertility and properties. Transported parent material, on the other hand, can introduce a diverse range of materials to a given area, resulting in variations in soil composition, texture, and fertility.
The transportation process can blend different types of sediment, resulting in the formation of heterogeneous soils with different characteristics. Transported parent material can also be exposed to weathering processes, altering its original composition and resulting in soils with varying degrees of fertility.
While transported parent material can increase the diversity of soil properties in an area, it can also make it difficult to predict soil characteristics, particularly in areas where different types of sediment have been deposited. The relationship between parent material and soil development is complex, with both the initial characteristics of the material and the surrounding environment influencing soil properties.
In general, residual parent material contributes to the development of homogeneous soils with predictable properties, while transported parent material can result in more diverse and heterogeneous soils.
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Beginning your introduction to your research paper with a question is a great way to capture the reader's interest.
True
False
Answers
Answer:
True
Explanation:
Yes it is since it intrigues to reader to go deeper into your research paper. In addition, it also gives you good dialoge for what you write/say next.
Every hour we shed 1.5 million skin cells. What do these skin cells become and what
eats them?
Answers
Answer:
the protein known as keratin, the main component of the epidermis. Melanocytes, which produce your skin pigment, known as melanin. Langerhans cells, which prevent things from getting into your skin.
What characteristic was used in this mission to determine a banana's relationship to other the plants?
Answers
The characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics.
What is morphology?
Morphology is the study of the form and structure of living organisms, including their physical and anatomical features. In biology, morphology is used to describe the appearance, shape, and size of different parts of an organism, such as its organs, tissues, cells, and even its molecules. This includes the study of external and internal structures, as well as their function, development, and evolution. Morphological characteristics are often used in the classification and identification of different species, as they can provide important clues about an organism's evolutionary history, ecological niche, and relationship to other organisms.
We assume you are referring to the scientific classification of bananas in the plant kingdom. In this case, the characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics. Bananas belong to the genus Musa, which is part of the family Musaceae.
The characteristics used to classify plants into different taxonomic groups include their structural features, such as their leaves, stems, flowers, and fruit, as well as their genetic and evolutionary relationships. These characteristics are used to group plants into increasingly broader taxonomic categories, from species to genus, family, order, class, phylum, and kingdom.
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Design and organise learning experiences according to your local circumstances when teaching Processing (including traditional processing of raw materials; metal processing; food processing)
Answers
When teaching Processing, it is essential to design and organize learning experiences that align with local circumstances and provide practical applications.
Here is a suggested approach for teaching Processing, including traditional processing of raw materials, metal processing, and food processing, considering local circumstances:
1. Introduction and Contextualization:
Start by introducing the concept of processing and its importance in various industries. Provide examples of local raw materials, metals, and food products that undergo processing. Discuss the significance of processing in the local economy and its impact on society.
2. Field Trips and Industry Visits:
Arrange field trips to local processing facilities such as factories, mills, or food processing plants. These visits offer students firsthand exposure to different processing techniques and machinery. Encourage students to observe and interact with professionals in the field, asking questions and understanding the practical aspects of processing.
3. Hands-on Workshops:
Organize hands-on workshops where students can engage in practical activities related to processing. For example, set up a metalworking workshop where students can learn basic metal processing techniques like cutting, shaping, and welding. Provide guidance on safety measures and proper tool usage.
4. Local Case Studies:
Explore local case studies of successful processing businesses or initiatives. This could involve inviting guest speakers from local processing companies or inviting entrepreneurs who have started their own processing ventures. Students can learn about the challenges, opportunities, and sustainable practices in the local processing industry.
5. Project-Based Learning:
Assign project-based tasks that allow students to apply their knowledge of processing. For example, students could design and develop a prototype for a food processing machine or propose innovative methods to improve traditional processing techniques using local resources. Encourage creativity, critical thinking, and problem-solving skills throughout the project.
6. Community Engagement:
Encourage students to engage with the local community by organizing outreach programs related to processing. This could involve organizing workshops for local artisans or collaborating with local farmers to develop value-added food products. Such activities foster a sense of social responsibility and provide students with real-world experiences.
7. Assessment and Reflection:
Regularly assess student understanding through quizzes, assignments, and presentations. Encourage reflective practices where students can evaluate their own learning journey and identify areas for improvement. Incorporate feedback mechanisms to continuously enhance the learning experiences.
By designing learning experiences that incorporate field trips, hands-on workshops, local case studies, project-based learning, community engagement, and reflective practices, students will develop a holistic understanding of processing and its significance in their local context. This approach will equip them with practical skills, foster creativity, and promote an entrepreneurial mindset, preparing them for future opportunities in the processing industry.
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Pain receptor, sensory neuron, spinal cord, motor neuron, & effector muscle.
Which of the above terms would be different if the reflex were a balance reflex? What term would you substitute?
Answers
Sensory neuron is responsible for the transport of signal from the receptor to the interneuron which is then connected with the motor neuron.
What term would you substitute?In a reflex arc, the receptors present in the skin receive stimulus and generate afferent impulse. The sensory neuron transmits the impulse to the interneuron. Interneuron is present in the spinal cord and activates it. The interneuron then sends back the impulse through the motor neurons to effectors whcih are present in the muscles for the response. Sensory receptors → sensory neurons → interneurons → motor neurons. Justine took a sip of milk and immediately spat it out because she realized it had soured. The path of the messages is sensory receptors → sensory neurons → interneurons → motor neurons, in her nervous system which cause this reaction. Sensory Receptor is that part of the nervous system that responds to stimuli Sensory Neuron is that type of neuron that carries messages from special receptors to the central nervous systemInterneuron is the type of neuron that connects sensory and motor neurons.Motor Neuron is the type of neuron that carries messages from the central nervous system to effectors.To learn more about neuron refer to:
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Does weather disturbance have beneficial effects?
Answers
Answer:
They are able to promote changes to the physical structure of the system.
Explanation:
Order the following fat in regards to nutrient utilization priority (order them as they are deposited):
Answers
The largest nutrient loss occurs during processes that subject food to intense heat, light, or oxygen levels. Fertilized soils are used to generate the majority of plant crops.
The amount of vitamin C in many fruit and vegetable crops tends to decrease with increased nitrogen fertilizer use. 90% of the diet's dry weight and 100% of its calories come from the combination of carbohydrates, proteins, and fats. Each of these three sources of energy (measured in calories) has a different quantity of energy per 1 gram (1/28 ounce):
Which is digested first: fat, carbohydrates, or protein? Protein and lipids often take longer to digest than carbohydrates, which are the body's main source of energy. Fats take longer to digest than protein. Various events might occur during the growth, harvesting,
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Which one? I dont know please help me!!!
Answers
Answer:
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.
Explanation:
Which of the following is NOT a function of the skeletal system?
Answers
Explanation:
where is the option of the Question
What is Gregor Mendel's contribution to the history and study of genetics?
Your answer:
A. He discovered that characteristics are determined by inherited factors (genes).
B. He discovered that alleles can be dominant or recessive.
C. He discovered that alleles segregate independently during the formation of gamates.
D.All of the other answer choices
Answers
Answer:
d
Explanation:
all of the other answer choices
I feel like it would be D. I know I'm 9 times out of 10 probably wrong.
Which organism is likely to carry out the process shown in the diagram?
CO, + H,O
Heat
www
Chloroplast
Mitochondrion
MASS
Respiration
OA. Barn owl
OB. Mushroom
C. Alligator
-0₂
Sugar
ATP
Answers
Answer:
C
Explanation:
took the test
In which system does kidney disease originate?
Answers
Answer:
excretory
Explanation:
others make no sense
What might the connection be between global warming and human activity?
Answers
Answer:
chemical pollution
Explanation:
:::
2. Compare and contrast absolute (radiometric) dating to relative dating.
Answers
radiometric dating is the type of dating that both spouses are into each other genuinely while relative dating is the vice versa
Shelia likes for the plants in her flower bed to come back year after year.
Which plant type would be her best choice?
Answers
Answer:
perinnial
Explanation:
Perennial plants come back every year.
Shelia likes for the plants in her flower bed to come back year after year. The plants that would be her best choice are perennial plants.
What are perennial plants?Any plant that lives for multiple years is referred to as a perennial. Herbaceous growth is typically produced from a section of the plant that endures from growing season to growing season.
Perennials include trees, shrubs, all gymnosperms (cone-bearing plants), some herbaceous (nonwoody) flowering plants, and ground covers.
Perennial plants can excel in your garden by luring beneficial insects, enhancing soil structure, extending your food crop, and providing therapeutic characteristics. Here are some perennial staples that you can produce for food and recreation.
Therefore, the plants in Shelia's flower bed should return each year, she loves. Perennial plants are her greatest option for landscaping.
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Please help !!!!!!!!!!!!!!
Answers
1) The scientific method can be used to find out which laundry detergent is most effective in removing stains.
2) Not all scientific inquiries follow the scientific method across all the steps because some scientific investigations involves observation in a natural setting.
Example of how the scientific method can be used to answer a question in daily lifeBy making observations, formulating hypotheses, carrying out experiments, collecting data, and drawing conclusions, the scientific method is a methodical technique to answering questions or addressing problems. It can be used to provide answers to queries in a variety of everyday situations.
Let's imagine, for instance, that you want to know which laundry detergent is best at removing stains. This can be ansewed by the use of the scientific method.
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Differences among organisms are caused by differences in the _____.
Answers
is it important to have circulatory system for single cell or multicellular organism?
Answers
Streptomycin is an effective antibiotic because _____________.
a) it inhibits protein synthesis in prokaryotes
b) it does not affect eukaryotes
c) both
d) neither
Answers
Answer: Option C.
Both
Explanation:
Streptomycin is an antibiotics produced from bacteria and fungi and it is used to treat bacteria infections (prokaryotic ) such as tuberculosis, mycobacterium infection e.t.c.
It's inhibit protein function in prokaryotes because it's affects the function and performance of 70 s RIBOSOMES which is an organelles for protein production.
Streptomycin does not affect eukaryotes because it does not bind to the RIBOSOMES of eukaryotic cells which in turn does not affect protein production.
Question is in an image and not sure what the answer is would appreciate help
Answers
Answer:
D. Every living thing that we know so far is the basic unit of life (Cells).
Explanation:
Explain how thermal energy is circulated in Earth's atmosphere. How does this energy impact the air molecules in the upper atmosphere? Use complete sentences in your response
Answers
Which of the following statements is a correct interpretation of the phylogenetic tree shown in the illustration?
a. The warbler finch is the common ancestor to all the finch species that exist today in the Galapagos islands.
b. The sharp-beaked ground finch is more closely related to the small tree finch than either species is to the cactus finch.
c. The 13 finch species evolved in sequence; the warbler finch is the oldest species and the small ground finch is the most recent species to evolve.
d. All the Galapagos finches are more closely related to one another than they are to mainland finch species.
Answers
D: "All the Galapagos finches are more closely related to one another than they are to mainland finch species" is a correct interpretation of the phylogenetic tree shown in the illustratior.
The illustration of the phylogenetic tree shows a branching pattern that represents the evolutionary relationships among different species of finches in the Galapagos islands. Each branch point represents a divergence in the evolutionary history of the species, with the length of the branch representing the amount of time that has passed since the divergence. The tree shows that all the Galapagos finches are more closely related to one another than they are to any mainland finch species, indicating that they share a common ancestry and have evolved over time in the Galapagos islands.
The sharp-beaked ground finch and the small tree finch are more closely related to each other than either species is to the cactus finch, but this does not mean that the sharp-beaked ground finch is the common ancestor of all the finches. The evolutionary relationships shown in the tree are complex and can only be interpreted by carefully analyzing the branching pattern and the lengths of the branches.
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