Answers
Answer:
Sickle cell anemia is an inherited condition in which there aren't enough healthy red blood cells to carry oxygen through an individual's body. The red blood cells of a healthy individual are flexible and round, and they move through blood vessels with no problem, transporting oxygen successfully. However, a person with sickle cell anemia has rigid, sticky red blood shaped like sickles or crescent moons. These cells often get stuck in small blood vessels, which can slow or block blood flow and oxygen delivery to different parts of the body.
The sickle cell anemia trait is found on a recessive allele of the hemoglobin gene, while the regular red blood cell trait is found on the dominant allele. This means that a person must have two copies of the recessive allele (one from their mother and the other from their father) to be born with this condition. People who have one dominant and one recessive allele or both dominant alleles will have healthy red blood cells.
Related Questions
A leak in a structure of a plant cell resulted in waste materials moving into the cytoplasm of the cell.
Which structure most likely had the leak?
a. Structure I
b. Structure 2
c. Structure 3
d.
Structure 4
Answers
Answer:
b is the correct answer to your question
Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music
What can Carmen do to make her experiment more reliable?
A. add another variable to test
B. repeat the experiment several times
C. decrease the amount of time the test subjects are exposed to the music
D. putting each test subject in a different location while they listen to the music
Answers
calculate the force of gravity between the Earth and the sun if the distance from earth to the sun is 1.5 x 10^11m
Answers
Answer:
F=6.67×10−11(2×1030)×(6×1024)(1.5×1011)2=35.57×1021=3.56×1022 N. Q. The mass of the earth is 6×1024kg. The distance between the earth and the Sun is 1.5×1011m.
Explanation:
Which statement summarizes the relationship between DNA, proteins, and amino acids?
A. The DNA molecule is a protein formed by amino acids that are linked together by peptide bonds.
B. The type of protein that composes DNA codes for the twenty different amino acids.
C. The sequence of amino acids in DNA determines the type of protein formed during protein synthesis.
D. The sequence of nucleotides in DNA codes for specific amino acids which bond to form proteins.
Answers
Answer:b
Explanation:
The statement (B) is correct. The type of protein that composes DNA codes for the twenty different amino acids.
What are proteins?Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues.
Moreover, proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.
Therefore, a molecule made up of amino acids. Proteins are needed for the body to function properly. They are the basis of body structures, such as skin and hair, and of other substances such as enzymes, cytokines, and antibodies.
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4. The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell would be: which option is correct a) 1 mole of ATP b) 2 moles of ATP c) 3 moles of ATP d) 4 moles of ATP e) 6 moles of ATP
Answers
The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell is approximately 4 moles of ATP.
During oxidative phosphorylation, each mole of NADH can generate around 2.5 to 3 moles of ATP. Therefore, for 2 moles of NADH, the total ATP production would be in the range of 4 to 6 moles of ATP. While the more precise estimate falls within the 4 to 6 moles range, the closest option provided is 4 moles of ATP. It is important to note that the exact ATP yield can vary depending on factors such as the efficiency of the electron transport chain and the specific conditions within the cell.Since there are 2 moles of mitochondrial NADH, the total ATP yield would be around 4 to 6 moles of ATP. However, the most accurate option among the given choices is 4 moles of ATP.
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2. In polar regions, phytoplankton.
a thrive all year round, because nutrients are always plentiful
b. thrive during the summer, when sunlight increases
c. cannot survive, because the waters are too cold
d. cannot survive, because a permanent thermocline traps nutrients deep below the surface
Answers
Answer:
b. thrive during the summer, when sunlight increases
Explanation:
Phytoplankton production is highly associated with latitude and season. In polar regions, phytoplankton production is reduced to the summer (and eventually spring) season. In consequence, the zooplankton that eats phytoplankton only can survive during the spring and summer seasons. On the other hand, in tropical areas, there exists a nearly constant phytoplankton production all year round.
Explain what traits you would give a pathogen if you wanted to make it hard for a vaccine to be used. List at least 4 things help please
Answers
Answer:
Here are four traits that would make it hard for a vaccine to be used:
1. Rapid mutation rate. If a pathogen mutates rapidly, it will be able to evade the immune system's defenses, including the antibodies produced by a vaccine. This is a particular problem with viruses, which can mutate very quickly.
2. Ability to evade the immune system. Some pathogens are able to evade the immune system by hiding inside cells or by changing their surface proteins so that they are no longer recognized by the immune system. This makes it difficult for the immune system to mount an effective response to the infection.
3. Ability to spread easily. If a pathogen is easily spread from person to person, it will be more difficult to prevent infection through vaccination. This is a particular problem with respiratory viruses, which can be spread through coughing and sneezing.
4. Lack of animal reservoirs. If a pathogen does not have animal reservoirs, it will be more difficult to develop a vaccine against it. This is because vaccines are typically developed using weakened or killed versions of the pathogen. If there are no animal reservoirs, there will be no source of the pathogen to use for vaccine development.
It is important to note that these are just a few of the traits that can make it difficult to develop a vaccine against a pathogen. There are many other factors that can contribute to the difficulty of vaccine development, such as the cost of vaccine development, the availability of funding, and the political will to support vaccine development.
Julia is trying to place a duckbilled platypus, lizard, bear, and monkey on a phylogenetic tree. She learns that the duckbilled platypus, bear, and monkey are classified as mammals. She also learns that mammals share a common ancestor with reptiles. Which additional piece of information will be most helpful to Julia to properly build her phylogenetic tree
Answers
The additional information required is that the platypus lays eggs like a reptile.
What are mammals?The animals classified as mammals are those animals that give birth to their young ones alive and also possess the mammary gland. As such, they can breastfeed their young ones.
Since the mammals share a similar ancestry as the reptiles, the additional information that Julia requires is that the platypus lays eggs like a reptile.
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Which organisms are likely to be found in the level labeled 4 in this diagram?
Select the two correct answers.
600
m.
1550
Trophic Level
N
17000
1
340000
A. Owl
I B. Snake
MY C. Tree
D. Rat
I E. Wolf
Answers
Answer:wolf & owl
Explanation:
Just took the quiz
The organisms that are likely to be found in the level labeled 4 in the diagram are Wolf and Owl.
What is Trophic levels?Trophic levels refer to the feeding positions of organisms in a food chain or food web. They are often used to describe the transfer of energy and nutrients through an ecosystem.
In a food chain, the trophic level is determined by the position of an organism in the chain relative to the primary source of energy, which is typically the sun.
Trophic level 4 represents tertiary consumers, which are carnivores that feed on other carnivores. The wolf is a tertiary consumer that feeds on other carnivores such as coyotes, foxes, and sometimes other wolves. The owl is also a tertiary consumer that feeds on other carnivores such as mice, rats, and other birds.
Therefore, options A and E, which represent the Wolf and Owl, respectively, are the correct answers. Options B, C, and D represent organisms that are not likely to be found in trophic level 4.
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Which element is a major component of nucleic acids?
phosphorous
sulfur
nitrogen
calcium
Answers
Answer:
NITROGEN calcium
Explanation:
because it would have an chemical overflow and not be there
Answer:
nitrogen calcium
Explanation:
i took the tes
What is an ability unique to kingdom animalia
Answers
-They are multicellular organisms which do not possess chlorophyll.
-They are eukaryotic organisms.
-Cell wall is absent.
-Mode of nutrition is heterotrophic i.e. they depend on other organisms for food.
FILL IN THE BLANK. the idea behind __ is that if an animal is raised in an environment that contains only certain types of stimuli, then neurons that respond to these stimuli will become more prevalent.
Answers
Answer:
Explanation:
an environment that contains only certain types of stimuli
02.03 Water Quality Virtual Lab Worksheet
Describe how a pollutant dissolved in surface water can enter an aquifer. Be sure to include the water cycle's and groundwater's roles in this pollution.
Help Fast!
Answers
When a pollutant is present in soil and rain falls, the pollutant dissolves in rainwater. The rainwater then seeps underground and then enters the aquifer.
What are aquifers?Aquifers are underground water stores that are formed from permeable rocks that are saturated with water.
Aquifers serve as water sources for humans.
When rain falls, water permeates the earth and is stored in aquifers.
Pollutants are substances that when present in a substance or the environment, make the substance or environment unfit for use.
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Place the following items in order from smallest to largest (1 being smallest and 5 being largest).
a polysaccharide
nucleus of an atom
a carbon atom
proton
a molecule of glucose
Answers
Answer: proton<nucleus of an atom<a carbon atom< a glucose molecule< a polysaccharide
Explanation:
These are the events that occur during protein synthesis. They are not in the correct order. Write numbers in the blanks indicating the order in which these steps occur.
Answers
1. DNA transcribes RNA
2. The RNA is sent to the cytoplasm in the form of mRNA
3. mRNA attaches to a ribosome
4. As the mRNA moves through the ribosomes, a tRNA molecule arrives transporting the correct amino acid
5. Newly arriving amino acids are connected to the growing polypeptide by peptide bonds
6. When a stop codon is reached, the protein is released from the ribosome.
1-When you get sick, should you take an antibiotic that a friend or family member offers you (this includes your mom!)? Why or why not?
2- Let's say you're sick and your doctor prescribes you an antibiotic that you have to take for 7 days. If you feel better after 4 days, should you continue taking the antibiotic for the full dose, or stop taking it? Why or why not?
3-If you have a virus, will taking antibiotics cure your infection? Why or why not?
Answers
Answer:
No, because they are not a physicianYes, I will continue to make myself more healthy it depends on the virusDesign 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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Brown eye color is a dominant trait and blue eye color is a recessive trait.
What typically happens when someone inherits one allele for brown eyes and one for blue eyes?
O The person has brown eyes, and brown eye color remains a dominant trait.
O The person has blue eyes, but brown eye color remains a dominant trait.
O The person has brown eyes, but blue eye color becomes a dominant trait.
O The person has blue eyes, and blue eye color becomes a dominant trait.
Next
Submit
Save and Exit
Mark this and return
Answers
a. The person has brown eyes, and brown eye color remains a dominant trait.
since brown is dominant they only need one alle to have brown eyes. I hope this helps
Select the correct answer.
Ships accidentally spread a species of sea urchins to an area of the sea in which they previously didn’t live. The graph depicts the growth trend of native seaweed, a common food for sea urchins, after this invasion. What could ecologists do to curb the trend in the seaweed population?
A.
Eliminate the sea urchins’ competitor.
B.
Introduce more sea urchins.
C.
Introduce a competitor for seaweed.
D.
Introduce a predator for invasive sea urchins.
Answers
Answer:
D!
Explanation:
Introducing a predator to kill the sea urchins will lower their population and/or make them move away from the area they invaded
Fill in the blanks then explain:Volcanic eruptions has ______ and _____ effect on the environment
Answers
Volcanic eruptions has the release of volcanic gas and it can provoke climate changes that have a negative effect on the environment.
The volcanic gases are harmful for the environment, there is multiple substances in the volcanic gas, since water molecules (harmless), carbon dioxide, and surfur dioxide. When thr volcanic gases are realesed in the atmosphere it causes climate changes, such as increase the temperature, cause changes in the oceanic cycle, increase the levels of carbon dioxide, and so on. All that actions provoke changes and negative effects in the general environment, being more present in the closer vicinity of the eruption.
Why does type 2 diabetes result in high blood pressure? HELP PLS!!
Answers
In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of time?
Answers
If a food has many calories relative to its physical size, it's considered to have a
A. high calorie density.
B. low calorie density.
C. high fat density.
D. low fat density.
Answers
Answer:A
Explanation: High-calorie density per its physical size
Answer:
A is the answer because it is high in calories density
Why do sex-linked traits follow different patterns of inheratance than other traits
Answers
Answer:
Males and females have different sex chromosomes.
Explanation:
Sex Linked trait is controlled by the chromosomes while other traits are controlled by autosomes. The autosomal cells and traits have a constant characteristics in a human being. The chromosomal cells however vary. The male chromosome XY is different from the female chromosome XX.
This is the reason why sex-linked traits follow different patterns of inheratance than other traits as a result of the Males and females having different sex chromosomes is valid.
Think about the ecosystem that you live in. Write a response below describing it in complete sentences. Use each of these terms correctly in your description: community . population • ecosystem . individual .biotic abiotic
Answers
Answer:
Within an ecosystem, we can identify different levels of organization, such as individuals, populations, communities, and the overall ecosystem.
Explanation:
An individual refers to a single organism, such as a plant or an animal, living within the ecosystem. For example, a squirrel or a tree in your ecosystem would be considered individuals.
Populations are groups of individuals of the same species that live in the same area and interact with one another. For instance, if there is a group of squirrels living in your ecosystem, we can refer to them as a population of squirrels.
Communities include all the populations of different species living together in a specific area. In your ecosystem, there might be various populations, such as squirrels, birds, insects, and plants, interacting and coexisting with one another. Together, they form a community of different organisms.
The ecosystem encompasses both the living organisms (biotic factors) and the non-living components (abiotic factors) in a given area. The abiotic factors include things like sunlight, temperature, water, soil, and air. They influence the distribution and behavior of the organisms within the ecosystem. For example, the availability of sunlight and the temperature range in your ecosystem will affect the growth of plants and the activities of animals.
An ecosystem consists of the interactions between abiotic and biotic components in a specific area. Abiotic components include non-living factors like water, air, sunlight, temperature, and soil, while biotic components include living organisms like plants, animals, and microbes.
Populations of different species of plants, animals, and microbes make up the biotic components of an ecosystem. Each individual organism, whether a plant, animal, or microbe, interacts with its biotic and abiotic surroundings. The community of different species of organisms in an ecosystem all interact with each other to obtain food, shelter, or other necessary resources.
Some species form mutualistic relationships, while others may be in competition with each other for resources. Therefore, the ecosystem that we live in is the local community of living organisms interacting with the abiotic environment. These interactions between abiotic and biotic components of an ecosystem result in complex and dynamic ecosystems that can change over time.
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Which of these is a product of cellular respiration:
A. Oxygen
B. Water
C. Glucose
D. All of above
Answers
Answer:
is b b/se the reason is ATP
If illegal hunting of oxpeckers increases in 2012 and causes a decrease in oxpecker numbers, what will most likely happen to
rhinoceros populations?
Answers
a decline in oxpecker numbers is probably going to be bad for rhinoceros populations.
Oxpecker numbers are projected to decline as a result of increased unlawful hunting, which will have a negative impact on rhinoceros populations.
The ticks and parasites that live on the skin of rhinoceroses and other large mammals provide the food source for oxpeckers, which are birds. By keeping the animals free of parasites and warning them of imminent danger, they offer an important service.
The number of ticks and other parasites on rhinoceroses may increase if oxpecker populations drop as a result of hunting, which could result in health issues and lower survival rates. In addition, rhinoceroses might be more susceptible to predators and other dangers without oxpeckers to provide warning sounds. So, a decline in oxpecker numbers is probably going to be bad for rhinoceros populations.
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can someone explain what the mitochondria does to APT and how it produces energy, I need it for my notes.
Answers
Answer:
Mitochondria produce energy through the process of cellular respiration. Respiration is another word for breathing. The mitochondria take food molecules in the form of carbohydrates and combine them with oxygen to produce the ATP. They use proteins called enzymes to produce the correct chemical reaction.
Explanation:
Hope it helps.. if yes, plz mark me as brainliest :)
Which aspect of the human skeletal system provides forensic anthropologists with the most information about a skeleton's age?
A. the general shape and size of the eye orbits
the way that bones change position over time
the tendency of human bones to harden with exposure
the fact that specific bones exhibit sex differences
B.
C.
O D.
Answers
The aspect of the human skeletal system that provides forensic anthropologists with the most information about the age of skeletons is the fact that specific bones that exhibit sex differences. Option D
Human Skeletons and AnthropologyAmong the options provided, the aspect of the human skeletal system that provides forensic anthropologists with the most information about a skeleton's age is the fact that specific bones exhibit sex differences.
While the shape and size of eye orbits, bone position changes over time, and bone hardening with exposure can provide some information about age, determining sex differences through specific bone characteristics (such as pelvic bones, skull features, or long bone dimensions) is often more reliable and widely used in forensic anthropology to estimate the age of a skeleton.
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Three circuit diagrams are shown. Which statement about the circuit
diagrams is accurate?
Circuit A Circuit B Circuit C
A. Circuits A, B, and C are all series circuits.
OB. Circuits A and C are series circuits, and circuit B is a parallel
circuit.
C. Circuits A and B are series circuits, and circuit C is a parallel
circuit.
OD. Circuit A is a series circuit, and circuits B and C are parallel
circuits.
Answers
From the diagram, circuit a and b are series circuit while c is parallel. Option C
What is a parallel and series circuit?
The components in a parallel circuit are linked together so that the electric current can go along several different routes. The power source is directly connected to each component, forming parallel branches. While the current in a parallel circuit can vary, the voltage between each component is constant.
The components of a series circuit are connected one after the other to create a single path for the passage of electricity. While the voltage across each component can change, the current flowing through each component is constant.
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