Answers
Answer:
Nucleus
The nucleus controls all the activities that happen in the cell
Related Questions
Why is it important to have a control group in the experimental design?
Answers
The control group is the main one because it acts as a benchmark to balance the results of the experiment.
What is control group in the experiment?Control groups are a principal aspect of true experimental designs. The presence of control groups authorizes researchers to confirm that study results are due to the drafts of independent variables rather than irrelevant variables. The control group of an experiment is a group that is not revealed to the independent variable and thus serves as a benchmark to which to compare the outcome of the experimental group. An experimental group, also known as a use of group, receives the treatment whose effect researchers wish to study, whereas a control group does not. They should be similar in all other ways.
So we can conclude that an example of a control group is a group of individuals in a detached trial that receive placebo pills instead of medication.
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What is one reason the cell division is important for living organisms?
Answers
Answer:
below
Explanation:
Cell division allows organisms to grow and to repair damaged structures.
Hope this helped! :)
how one’s sense of maleness or femaleness develops
Answers
Answer:
It is through Gender socialization
Explanation:
Hope this helps!
Situation: A scientist collected the data below in relation the the reproduction of the cells in a science experiment.
Part A: Explain the type of growth that is shown in this experiment.
Part B: What stage of the cell cycle would you expect most of the cells to be in? Explain.
Answers
Exponential growth is shown in this experiment.
The finest illustration of exponential growth is seen in bacteria. By prokaryotic fission, prokaryotes, such as bacteria, divide. This division takes many bacterial species around one hour to complete. If 1000 bacteria are put in a large flask with an endless supply of nutrients, after an hour there will be one cycle of division (with each cell dividing once), resulting in 2000 individuals (so the nutrients will not become depleted). In another hour, each of the 2000 creatures will grow by two and create four times as many. There ought to be 8000 bacteria in the flask after the third hour. The fundamental tenet of exponential growth is that population expansion, or the number of organisms that are added to the globe with each reproductive generation, is accelerating.
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Which scenario is most likely to result in secondary succession?
Responses
lava cooling and forming bare rock after a volcanic eruption
a forest fire clearing out trees and underbrush
a glacier receding back up a mountain
a flood washing away all plant life and topsoil from an area
Answers
Answer:
''A forest fire clearing out trees and underbrush.''
Explanation:
A forest fire clearing out trees and underbrush is most likely to result in secondary succession. Secondary succession is the process of ecological succession that occurs after an area of land has been disturbed but has not been completely destroyed. In the case of a forest fire, the soil is still intact and there are still seeds and other organisms present in the area that can begin to grow and repopulate the area. Over time, the area will gradually return to its original state, with a diverse mix of plants and animals.
Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)
Answers
Answer:
Explanation:
To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."
i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:
Y Y
y Yy Yy
y YY YY
ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.
The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).
Question 2:
To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.
the scottish fold is a breed of cat with a mutation in a gene involved in cartilage development. the result is that each ear of the cat has a crease, so the ears fall forward and lie against the head instead of standing up like the ears of most small cats. the mutation is a dominant allele.
a cat that is heterozygous for the fold allele mates with a cat that is homozygous for the fold allele.
what are the expected percents of offspring that will have each characteristic?
Answers
In complete dominance, the presence of at least one dominant allele in the genotype is enougth to express the dominant phenotype. 100% of the offspring will have mutated creased ear, while 0% of the will have normal standing ear.
What is complete dominance?
Complete dominance is the inheritance pattern in which the dominant allele completely masks the recessive allele.
This interaction between alleles is observed in individuals who are heterozygous for a particular gene. They carry both alleles but only express the dominant trait. The dominant allele is hiding the expression of the recessive allele.
In the exposed example,
E is the dominant allele and codes for the mutated creased ear,e is the recessive allele and codes for the normal standing ear.Cross: a cat that is heterozygous with a cat that is homozygous for the fold allele.
Parentals) Ee x EE
Gametes) E e E E
Punnett square) E e
E EE Ee
E EE Ee
F1) 50% of the progeny is expected to be heterozygous
50% of the progeny is expected to be homozygous dominant
100% of the progeny is expected to have ears with a crease.
The expected percents of offspring that will have each characteristic are,
100% of the animals will have mutated creased ear,0% of the animals will have normal standing ear.You can learn more about complete dominance at
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What does the food web show us
Answers
Answer:
A food web is a detailed description of the species within a community and their relationships with each other; it shows how energy is transferred up food chains that are interlinked with other food chains.
four interview questions on inhumane farming methods could lead to ill-health
Answers
Do you regret your decisions that have caused the suffering of others?
Do you plan on continuing to use inhumane farming methods or will you change this in the future?
What do you have to say about those who have fallen ill from your methods of farming?
Hope this helped a little
5. Match the Rows and Columns *
Food Web
Allele
Frequency
Pyramid of
Numbers
Charcteristcs
Rosalind
Franklin
Abundance of
Plants/Freshwater
Shrimp
O
O
O
Gene
Frequency
O
O
O
O
O
X-ray
Diffraction
O
O
O
O
O
Food
Chain
O
O
Traits
O
O
O
O
O
Helppppp
Answers
The matching of rows and columns:
Food Web - Abundance of Plants/Freshwater ShrimpAllele - Gene FrequencyFrequency - TraitsPyramid of Numbers - Abundance of Plants/Freshwater ShrimpCharacteristics - TraitsRosalind Franklin - X-ray DiffractionFood Chain - Abundance of Plants/Freshwater Shrimp1. The interconnected feeding connections of an ecosystem are represented by a food web, and the amount of plants and freshwater prawns is an important part of this biological network.
2. Allele - Alleles are different gene forms, and the frequency of an allele in a population determines the frequency of the gene.
3. Frequency: The prevalence of particular features is affected by the frequency of particular alleles in the population.
4. Pyramid of numbers: In an ecosystem, the quantitative relationships between organisms at different trophic levels are represented by a pyramid of numbers.
5. characteristics- Traits are observable characteristics or qualities that people or other living things exhibit.
6. Rosalind Franklin - Rosalind Franklin's revolutionary X-ray diffraction research was instrumental in revealing the double helix structure of DNA, which led to the discovery of the structure of DNA.
7. Food chain - The linear flow of nutrients and energy from one organism to another is represented by a food chain.
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What membrane is rough ER connected to?; Is rough ER connected to smooth ER?; What connects rough ER to Golgi?; What is the connection between rough ER and DNA?
Answers
The rough ER's membranes are connected to the outer nuclear membrane, and its lumen is continuous with the perinuclear space.
The Golgi complex and the rough ER collaborate closely. A structure known as a transition vesicle is created in the ER when a protein is produced there. The Golgi apparatus take up this vesicle or sac after floating through the cytoplasm. The vesicle then travels to the cell membrane, where the chemicals are let go of the cell.
The ER transports proteins to the Golgi apparatus.
Rough ER (RER) participates in several aspects of protein synthesis, folding, quality assurance, and dispatch. Because it is covered in ribosomes, it is known as "rough." Smooth E R (SER) is connected to the synthesis and metabolism of lipids and steroid hormones.
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Food-borne illnesses can have substantial health and economic consequences. Correctly identify the steps that can lead to food-borne illness by Salmonella/Campylobacter and E. coli 0157:H7
1. Bloody diarrhea and hemolytic uremic syndrome can result
2. Live E. coli 0157:H7 bacteria are ingested
3. A Shiga-like toxin is produced
4. Incomplete cooking of raw hamburger fails to kill all pathogens
5. Live Salmonella or Campylobacter bacteria are ingested
6. Diarrhea, abdominal pain and nausea can result.
7. Incomplete cooking of poultry and fruits/vegetables fails to kill all pathogens
8. The pathogen multiplies in the intestinal tract for 2-48 days
Answers
Answer:
4,6,5,1,3
Explanation:
Question 6(Multiple Choice Worth 3 points)
(04.01 MC)
Starting with the European settlers, humans have introduced earthworms from Europe and Asia into North American forests. These introductions continue through the transport of soil that contains non-native earthworms, such as during construction and through the release of non-native earthworms used for fishing. The effects of non-native earthworms are especially large in forests that did not have any native earthworms. For example, forests of the Great Lakes region did not previously have earthworms until humans introduced them. When non-native earthworms are introduced, the thick layer of leaves, known as leaf litter, covering the ground disappears quickly, thereby altering biogeochemical cycles.
Which of the following correctly traces a nutrient pathway in a Great Lakes forest that is invaded with non-native earthworms?
trees → leaf litter → earthworm → atmosphere
leaf litter → earthworm → soil → trees
bird → earthworm → soil → trees
earthworm → fungi → leaf litter → trees
Answers
The correct trace nutrient pathway in a Great Lakes forest that is invaded with non-native earthworms is leaf litter → earthworm → soil → trees. The correct option is B.
What is a nutrient pathway?When there is an oversupply of food, nutrient-sensing pathways activate anabolism and storage, and when there is a shortage of food, homeostatic mechanisms including the mobilization of internal stores via mechanisms like autophagy are triggered.
Human metabolic illnesses frequently exhibit altered nutrient-sensing mechanisms.
Therefore, the correct option is B, leaf litter → earthworm → soil → trees.
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Answer:C
Explanation:
makes sense
11. A person who has rickets might need
more foods from which two groups?
Answers
In addition to getting enough vitamin D, people with rickets may also need to take calcium and phosphorus supplements. These supplements can help to improve bone health and prevent further bone loss.
Here are some specific foods that people with rickets may want to include in their diet:
Milk
Yogurt
Cheese
Salmon
Tuna
Sardines
Eggs
Fortified orange juice
Fortified cereal
Tofu
Green leafy vegetables
Fortified bread
Fortified pasta
It is important to talk to a doctor or registered dietitian about the best way to manage rickets. They can help to create a personalized diet and supplement plan that will meet the individual's needs.
How many types of pollination are there?
Answers
Answer: two
Explanation: Although there are many different types of pollinators, there are just two main types of pollination—self-pollination and cross-pollination.
Select a potted plant from the garden and keep it in a room for five days as shown in the diagram. After five days, you can see that most of the leaves of the plant change yellow. What could be a systematic method to ask right questions? Make a hypothesis or educated guess, conducting scientific experiment and activities about the existing facts to figure out a conclusion in accordance with the scientific learning process.
Answers
Answer:
Explanation:
To systematically investigate the yellowing of the plant's leaves, you can follow these steps:
1- Observation: Observe and note that after five days in the room, most of the plant's leaves have turned yellow.
2- Question: Ask yourself, "Why did the leaves of the potted plant turn yellow after being kept in the room for five days?"
3- Hypothesis: Make an educated guess about the possible cause of the yellowing. For example, you could hypothesize that the lack of sunlight in the room caused the leaves to turn yellow.
4- Experiment: Design an experiment to test your hypothesis. Place another potted plant in a different room with similar conditions but with sufficient sunlight.
5- Data collection and analysis: Record and compare the condition and color of the leaves in both plants after five days. If the plant with sunlight has green leaves while the one in the room still has yellow leaves, it supports your hypothesis.
6- Conclusion: Based on your observations and the results of the experiment, conclude that the lack of sunlight may be the cause of the yellowing of the plant's leaves.
By following these steps, you can systematically ask the right questions, form a hypothesis, conduct an experiment, and reach a conclusion using the scientific learning process.
Hope it helps!!! :)
A systematic method to ask the right questions, make educated guesses, conduct scientific experiments, and arrive at a conclusion is to follow the scientific method as follows:
Make observationsAsk questionsFormulate a hypothesisDesign and conduct experimentsCollect and analyze dataDraw a conclusionA hypothesis could be; The yellowing of the plant's leaves is a result of reduced exposure to sunlight.
Why do the leaves of a potted plant kept away from sunlight turn yellow?The yellowing of leaves in a potted plant kept away from sunlight is primarily due to a process called chlorosis which is the loss or reduction of chlorophyll in plant tissues.
When a potted plant is kept away from sunlight or receives insufficient light, the plant is unable to carry out photosynthesis. Consequently, the chlorophyll content in the leaves decreases, and they start to lose their green color.
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What’s one indirect consequences of building Seawalls
Answers
Answer:
The shoreline Habitat is destroyed through loss of sand.
Explanation:
Help please!! BRAINLIEST AND 10 POINTS!!
12. Choose the best answer.
Estimating how much it will cost to reduce a risk is part of___.
a. risk prevention
b. risk management
c. risk assessment
d. risk planning
Answers
Answer:
b not shure swbwbsbwgwva
You are assessing the risk, and therefore calculating the cost due to that assessment.
Apologies if I’m wrong.
How many individuals show the trait being followed?
Correct answer gets brainlest
Answers
Answer: 8 carry the trait and 2 show the trait
Explanation: the halves are the carriers and the full ones are those who show the trait
How does exhaling remove waste from the body? Explain the systems that make this happen, using complete sentences.
Answers
Exhaling removes waste from the body by expelling carbon dioxide through the respiratory system.
Exhaling plays a crucial role in removing waste from the body, particularly in the form of carbon dioxide (CO2), a byproduct of cellular respiration. The respiratory system, composed of the lungs and airways, is primarily responsible for this process.During inhalation, air containing oxygen is drawn into the lungs through the nose or mouth. Oxygen then diffuses across the lung tissue into the bloodstream, where it binds to hemoglobin and is transported to cells throughout the body. In the cells, oxygen is utilized in metabolic processes, generating energy and producing CO2 as a waste product.When we exhale, the diaphragm and intercostal muscles relax, causing the volume of the chest cavity to decrease. This action increases the pressure within the lungs, and air rich in CO2 is expelled from the body through the airways. The CO2 is removed from the bloodstream and eliminated from the body, reducing the waste buildup.Overall, the respiratory system's main function is to facilitate the exchange of gases, allowing oxygen to enter the body and carbon dioxide to be eliminated. Exhalation plays a vital role in removing waste by expelling CO2 and maintaining a balanced gas composition within the body.For more questions on respiratory
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Which type of the following energy resources are considered finite 
A. Gasoline.
B. Solar.
C. Wind.
Answers
Answer:
Gasoline
Explanation:
Since it is a finite amount because it has a certain value that cannot be exceeded
What corrective options are available to the surgical team members when a breach in sterile technique
Answers
When a breach in sterile technique is noticed, the surgical team members have several corrective options that they can consider to minimize any negative consequences. These corrective options include:
Disclosing the breach: If the breach is minor, it is important that the surgical team members disclose the breach to everyone involved in the procedure as soon as possible. This will allow everyone to take appropriate action to prevent any infections from occurring.
Correcting the breach: Once the breach has been disclosed, the surgical team members should work to correct the breach as soon as possible. For example, if a surgical instrument was dropped on the floor, it should be removed from the surgical field and replaced with a sterile instrument to minimize the risk of infection.
Restarting the procedure: In some cases, it may be necessary to restart the entire procedure if the breach is too significant to be corrected. While this may be time-consuming and may delay the procedure, it is important to prioritize the safety of the patient above all else.
Documenting the breach: Finally, the surgical team members should document the breach in detail. This documentation should include the type of breach that occurred, when it occurred, and what corrective actions were taken to address the breach.
This information can be used to help prevent future breaches and to identify areas for improvement in the surgical process.
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Volcanos and Earthquakes are natural hazards.
List 3-5 other natural hazards and tell if they are
predictable or not predicable.
Answers
Tsunamis- predictable
Mudslides avalanches- unpredictable
Astronomers believe that there is a large cloud of frozen comets called the Oort cloud, which surrounds our solar system. It lies approximately 50,000 times farther from the Sun than Earth. Approximately how many squares of toilet paper would you need to put the Oort cloud on your model? Explain how you arrived at your answer.
From Edmentum Earth & Space science
Answers
Answer:
Sun - Earth = 150,000,000 km
1 roll of toilet paper equals 500 x 100,000 = 50,000,000 km
150 miles/50 miles = 3 rolls of toilet paper
Explanation:
Edmentum
what is the purpose of the lab? red and light red walking beans
Answers
The purpose of the laboratory experiment "red and light red walking beans" is that the red light will make the beans invisible to other organisms and animals, which increase the population and survival rate of the beans.
What is a laboratory experiment?Laboratory experiments are described as research methodologies by which researchers create controllable environments to test hypotheses.
The hypothesis about the effect of the red light on the population of light red walking beans is that If red light is shined on a population of red walking beans then they would not be as red as when started because they would need light to survive.
The red light is present but they will not reflect it until they need it to survive.
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When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars (by cellulase in certain fungal species), the resulting glucose monomers are properly defined as: A. the catalysts
B. the substrates
C. the enzymes
D. the reactants
E. the products
Answers
When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars (by cellulase in certain fungal species), the resulting glucose monomers are properly defined as the products
The correct answer is option E.
When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars by cellulase in certain fungal species, the resulting glucose monomers are properly defined as the products.
In a chemical reaction, reactants are the starting materials or substances that undergo a change, while products are the resulting substances formed after the reaction. In this case, cellobiose is the substrate, which is the molecule that undergoes the enzymatic reaction. Cellulase is the enzyme responsible for catalyzing the digestion of cellobiose into glucose monomers.
The enzyme cellulase acts as a catalyst in the reaction, facilitating the breakdown of cellobiose into glucose. Catalysts are substances that increase the rate of a chemical reaction without being consumed or permanently changed themselves. However, in the context of the given question, the glucose monomers produced are the final result or product of the enzymatic digestion process.
Therefore, in the digestion of cellobiose, the resulting glucose monomers are correctly identified as the products (option E).
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which two statements correctly relate RNA amino acids , and proteins
Answers
The two correct statements that relate RNA, amino acids, and proteins are C and D.
RNA, Amino acids, and ProteinsRNA is used to build the amino acid sequence: RNA molecules, specifically messenger RNA (mRNA), serve as templates for protein synthesis. During a process called translation, the sequence of nucleotides in mRNA is read by ribosomes, and the corresponding amino acids are assembled in a specific order to form a protein.
Long amino acid sequences fold in a specific way to form proteins: Proteins are composed of long chains of amino acids. After the amino acids are synthesized and linked together, the resulting chain folds into a three-dimensional structure, which is critical for the protein's function. This folding process is driven by various interactions between the amino acid residues in the chain, allowing the protein to adopt its specific shape and perform its specific function.
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Connecting body systems!
Answers
The Connecting body systems are listed below:
Circulatory system
Respiratory system
Nervous system
Muscular system
Skeletal system
Digestive system
Endocrine (hormones) system
Lymphatic, or immune system system
Reproductive system
Integumentary (skin, hair) system
What is the Nervous system?The nervous system is described as the highly complex part of an animal that coordinates its actions and sensory information by transmitting signals to and from different parts of its body.
The main function of the nervous system is to help all the parts of the body to communicate with each other.
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One of the buffers that contribute to pH stability in human blood is carbonic acid (H2CO3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+), as noted below.
Answers
Answer:
Yes, carbonic acid is the part of blood buffer system.
Explanation:
Carbonic acid is a part of blood buffer system which helps in regulating of pH of the blood. Hydronium ion is responsible for the increase in acidity of the blood. The carbonic acid dissociates into bicarbonate and hydrogen ion, this bicarbonate ions react with the hydronium ion and prevent the pH of the blood from decreasing so we can say that carbonic acid is an essential part of blood buffer system.
what is a centromere
Answers
Answer:
the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
Explanation
brainliest?
Answer:
A centromere is where the two chromtid of a chromosome meets.. It meant the centre