AB blood group has both A & B antigens but no antibodies...
What type of antigens are found on RBC of a person with type AB blood?
A & BThe people with blood group AB have both antigens A and B but no antibodies thats why they are universal accepters...
Show the punnet square for Ss x Ss
Answer:
A Punnett square is a tool used to predict the possible outcomes of a genetic cross, it can be represented as a grid with the alleles (genes) of one parent along the top and the alleles of the other parent along the side.
When the cross is between two homozygous dominant individuals (Ss x Ss) the Punnett square would look like this:
Explanation:
| S | s
---|---|---
S | Ss | Ss
s | Ss | ss
Each box in the square represents a possible combination of alleles that could result from the cross, and the resulting genotype of the offspring. In this case, all of the possible combinations are SS, which is homozygous dominant. This means that all of the offspring will have the dominant allele (S) and will have the same phenotype (expression of the trait) as the parents.
What are the three transport methods of firebrand
Dr. Harris believes that the fur thickness of a specific rabbit species is directly related to the outside temperature of the rabbit's habitat. Other scientists in his field believe that the fur thickness of this species of rabbit is actually determined by the amount of sunlight that the rabbit is exposed to daily.
Dr. Harris performs an experiment to test whether temperature or sunlight affects fur thickness in this species of rabbit. Which of the following is true about the results of Dr. Harris' experiment?
A.
The results of the experiment may reinforce or weaken either hypothesis.
B.
The results of the experiment must support and reinforce Dr. Harris' hypothesis.
C.
The results of the experiment must support and reinforce the opposing hypothesis.
D.
The results of the experiment may prove either hypothesis to be fact.
The main objective of an experiment is to test a hypothesis and find out if the phenomenon being studied is real or not, so the answer is A. The results of the experiment can strengthen or weaken any hypothesis.
What is hypothesis?A hypothesis is a proposed explanation or prediction for a phenomenon or set of observations. It is an educated guess or prediction about the outcome of a certain experiment or study. Hypotheses are often used in scientific research to guide the design of experiments and to interpret the results. They are typically tested through experimentation or further observation to determine their validity and reliability.
An experiment serves to test a hypothesis or to explore a new phenomenon by collecting data and observing the results. It is a controlled procedure that allows for the manipulation of one or more variables in order to observe the effect on another variable. Experiments are used in many fields including science, medicine, engineering, psychology, and economics to test theories and to gather information about the natural world. The main goal of an experiment is to test a hypothesis and find out if the phenomenon being studied is real or not.
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The volume of a sphere is given by the formula 4r3/3. The surface area of a sphere is
given by 4 2. The surface area to volume ratio of a sphere of diameter 2.6 mm is
Answer:
The surface area to volume ratio of a sphere of diameter 2.6 mm can be calculated using the formulas for the volume and surface area of a sphere. The volume of a sphere is given by the formula 4πr3/3, where r is the radius of the sphere. The surface area of a sphere is given by 4πr2. In this case, the radius is 1.3 mm (half of 2.6 mm), and the surface area to volume ratio is 4π(1.3 mm)2/4π(1.3 mm)3 = 3/2π.
Explanation:
The volume of a sphere can be calculated using the formula V = 4/3 * π * r^3, where V is the volume and r is the radius of the sphere.
The surface area of a sphere can be calculated using the formula A = 4πr^2, where A is the surface area and r is the radius of the sphere.
Given that the diameter of the sphere is 2.6 mm, we can calculate the radius by dividing the diameter by 2:
r = 2.6 mm / 2 = 1.3 mm
Now, we can calculate the volume of the sphere using the formula:
V = 4/3 * π * (1.3 mm)^3
We can also calculate the surface area of the sphere using the formula:
A = 4π * (1.3 mm)^2
The surface area to volume ratio (SA:V) of a sphere is the ratio between the surface area and the volume. To calculate the SA:V ratio of the sphere, we divide the surface area by the volume:
SA:V = A/V
It's important to note that the ratio will be dimensionless because surface area and volume both have units of length cubed, thus canceling each other out in the ratio.
Hello so I am having a bit of trouble with the understanding of the punnet square, if any would could look at this photo and tell me which letters should be used that would mean a lot to me, thank you.
Answer:so basycally
Explanation: melanin make people diferents color so the asnwer should be albino cause makes change skin color
How are scientists sure that it is human activity and not solar activity that is currently causing climate change? Explain your answer in 3-5 sentences.
Hannah sees a caterpillar on the leaves of the plants.What component of the ecosystem is a caterpillar
Answer:
Biotic
Explanation:
In a particular ecosystem, caterpillar and parts of the soil are biotic components
I hope this helps - please mark as brainliest!
zThe expression "mad as a hatter" is based on the real-life practices of hatters beginning in the 17th century. It turns out that the process they used to make their hats was poisoning them and driving them insane. It wasn't until 1941 that hatters discovered what was causing them to behave so strangely.
The expression "crazy as a hatter" originated from the crazy behavior of hatmakers in the 17the who unknowingly inhaled large amounts of mercury vapor during the hatmaking process.
How is the expression "mad as a hatter" related to mercury exposure?The expression "crazy as a hatter" actually refers to mercury toxicity, often known as Mad Hatter illness. Felt hats were made in the 19th century using fur that had been mercury-treated. Hatters exhibited "crazy" or erratic conduct as a result of being trapped in small places and breathing hazardous mercury vapors.
The prevalent neurological symptoms that hatters and hat-makers displayed included such symptoms as slurred speech, tremors, irritability, shyness, depression, and other neurological symptoms. The symptoms were linked to long-term occupational mercury exposure.
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Complete question:
Where did the expression mad as a hatter originate?
During development of Golgi complex new membranes are added to the .............. face from the .................
During development of Golgi complex, new membranes are added to the forming face from the endoplasmic reticulum.
What are the parts of a cell?In Science, the parts of a cell are generally referred to as cell organelles and these include the following:
Cell membrane.Chromosome.Nucleus.ChloroplastCytoplasm.MitochondrionEndoplasmic reticulum (ER).Vesicles.Golgi apparatus (bodies).What is Golgi Apparatus?In Science, Golgi Apparatus can be defined as a type of cell organelle that is saddled with responsibility of preparing protein for export, especially by chemically tagging them.
Additionally, exocytosis simply refers to a biological process that is initiated by the Golgi apparatus which helps to expel a large molecule such as the expulsion of protein from cholera cells.
In conclusion, new membranes are added to the forming face from the endoplasmic reticulum (ER) during the development of Golgi complex.
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URGENT!
Natural selection is a mechanism that acts on individuals within a
population. Which is a result of the process of natural selection?
Select one:
O Genetic similarity within the population increases.
O The population as a whole is better adapted to the environment.
O The reproductive rate of the population decreases.
O Adverse changes to the environment become more frequent.
Answer:
The population as a whole is better adapted to the environment.
Explanation:
A population's members can be affected via the mechanism of natural selection. It happens when certain features or population differences provide some people a survival and procreation edge. Since these people are more likely to pass on their favorable qualities to their progeny, the population's proportion of people with these features rises over time. The population as a whole improves its environmental adaptation as a consequence.
It's important to note that genetic similarity within a population grows due to other processes other than natural selection, such as founder effect, inbreeding, or genetic drift. Furthermore, while the population's reproduction rate may decline, this is not necessarily due to natural selection. Likewise, adverse environmental changes that occur more frequently are not always caused by natural selection.
explain how chromosomes are sorted during mitosis. how is the sorting process related to changes you observed during the phases of mitosis?
After ecologists make their best estimations of how multiple factors affect one another by observation, how do they analyze data?
Answer:
Ecologists analyze data by using statistical methods and mathematical models to identify relationships among multiple factors. They also use computer simulations to test the accuracy of their observations and estimations. Additionally, they may use software to analyze large datasets and create visualizations to better understand the data.
Explanation:
Within a population of fish ____ exists in the form of body color some fish are orange and some fish are red
Answer:
Genetic Variation
Explanation:
Describe the path and all related steps that a molecule of oxygen would take from the air in the lungs to a muscle cell
Answer:, oxygen is delivered from the lungs to the bloodstream. The oxygen attaches to the hemoglobin of red blood cells.
Explanatio. The red blood cells then transport the oxygen to cells, such as those located in your muscles.
Genetic engineers use plasmids. a plasmid is
A. a map of a gene
B. a cell that is not yet specialized
C. a small, circular piece of DNA
D. an enzyme that can cut DNA into pieces
C. a small, circular piece of DNA
A plasmid is a small, circular piece of DNA found in bacteria and other single-celled organisms. It is separate from the organism's main chromosomal DNA and can exist in multiple copies per cell. Plasmids are often used as a vector for genetic engineering. They can be easily isolated from a bacterial cell and manipulated in a laboratory. Genetic engineers use plasmids to introduce new genetic material into cells, such as genes for resistance to antibiotics or for the production of a desired protein. Plasmids can also be used to transfer genetic information between different species of organisms.
In Freudian theory, which one of the following is an example of Thanatos instinct, which includes aggression, trauma, and risky behaviors?
In Freudian theory, the following which is an example of Thanatos instinct, which includes aggression, trauma, and risky behaviors is known as substance abuse and is therefore denoted as option D.
What is Freudian theory?This states that unconscious psychological forces, such as hidden desires and motives, shape an individual's behavior, like their purchasing patterns and other forms.
The personality qualities derived interact to create anxiety, which needs to be controlled via a range of defense mechanisms. These strategies mask the true, anxiety related causes of one's conduct.
Thanatos instinct, which includes aggression, trauma, and risky behaviors can be gotten from substance use as it is able to alter the reasoning and behavior of most individuals thereby making it the correct choice.
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The full question is:
In Freudian theory, which one of the following is an example of a Thanatos instinct, which includes aggression, trauma, and risky behaviors?
A. going to school.
B. seeking nourishment.
C. joining a basketball club.
D. substance abuse.
Would you expect an area with a dry hot climate to have more or fever ecological niches than an area with a humid rainy climate? Explain your answer
There would be more biological niches in a region with a variety of microclimates, enabling a greater range of creatures to find acceptable habitats. Humid heat is more dangerous than dry heat.
How is the microclimate impacted by temperature?The wind, temperature, relative humidity, precipitation, and atmospheric pressure all have an impact on the weather, which in turn has an impact on the microclimate. The relationship between wind and temperature is obvious: in areas with low winds, it is colder, while in areas with stronger winds, it is warmer.
How does the changing climate impact arid regions?How drought is caused by climate change: Evaporation is accelerated by warmer temperatures, which decreases surface water and dries out soils and vegetation. Because of this, dry spells last longer than they would in cooler conditions. The timing of when water is available is also changing due to climate change.
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Hereditary elliptocytosis diagnosis and Treatment/management
Please tell me precisely
It’s a presentation
Hereditary elliptocytosis (HE) states a group of red blood cell (RBC) disorders which is an inherited disease.
What is Hereditary elliptocytosis?
Hereditary elliptocytosis is characterized by the presence of, elliptically shaped and elongated RBCs on the peripheral blood smear.
Complete blood cell count (CBC) and Peripheral blood smear are the diagnosis method for Hereditary elliptocytosis.
There is no treatment for this disorder until it becomes severe anemia, spleen removal can be observed in the treatment.
Therefore, it is a red blood cell (RBC) disorder.
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130 POINTS! TO BEST ANSWER OF TWO!
What is the purpose of the liver?
Answer:
"All the blood leaving the stomach and intestines passes through the liver. The liver processes this blood and breaks down, balances, and creates the nutrients and also metabolizes drugs into forms that are easier to use for the rest of the body or that are nontoxic."
Why is the greenhouse effect necessary for life on earth?
The preservation of our planet's habitable temperature depends on "greenhouse gases." Heat would not exist without the greenhouse effect.
What makes the greenhouse effect essential to life on Earth?
Infrared radiation is absorbed by greenhouse gases present in the atmosphere, which then warm up and radiate thermal energy back to the Earth's surface. The planet Earth would be frigid and dead without the greenhouse effect. When Earth's atmosphere's gases capture the heat from the Sun, the process is referred to as the greenhouse effect. Earth becomes significantly warmer as a result of this process than it would otherwise be. One of the factors that makes Earth a nice place to live is the greenhouse effect.
Which five benefits do greenhouse gases have?
A life is sustained and encouraged by the greenhouse effect.
Regulation of Global Temperature: Greenhouse gases trap the sun’s energy in the atmosphere, which helps regulate the Earth’s temperature.
Water Cycle: Greenhouse gases also help in the water cycle process by trapping water vapor in the atmosphere.
Plant Growth: Greenhouse gases help to warm the Earth, which helps plants grow and thrive.
Reduction of Solar Radiation: Greenhouse gases reduce the amount of damaging solar radiation that reaches the Earth’s surface.
Photosynthesis: Greenhouse gases also help fuel photosynthesis, which is essential for plant growth.
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Which of the following is NOT an organ system of the human body?
A. Epidermal
B. Respiratory
C. Digestive
D. Urinary
Thalassemia is a hereditary disease of the blood of humans resulting in anemia. Severe anemia (Thalassemia major) is found in homozygous (TMTM) and a milder form (Thalassemia minor) is found in heterozygous (TMTN). Normal individuals are homozygous (TNTN). If all individuals of Thalassaemia major die before sexual maturity, what fraction of the adult F₁ from marriages of minors with minors would be expected to be anemic?
Answer:
If all individuals with Thalassemia major die before sexual maturity, the fraction of the adult F1 from marriages of minors with minors that would be expected to be anemic would be 0.25. This is because, in such a marriage, each parent is a carrier of the trait (TMTN) and the offspring of such a marriage would thus be expected to be in a 1:2:1 ratio of normal individuals (TNTN): carriers (TMTN): individuals with Thalassemia major (TMTM). Since those individuals with Thalassemia major would not have survived to adulthood, the fraction of anemic individuals would be 0.25 (1/4).
Explanation:
If all individuals of Thalassemia major die before sexual maturity, the expected fraction of anemic individuals in the F1 generation of marriages between Thalassemia minors would be 0.25, or 25%. This is because, when two Thalassemia minors are married, the genotypes of their offspring will be 25% TT (Thalassemia major), 50% TN (Thalassemia minor), and 25% NN (normal individuals). Since only the TT individuals will be anemic, 25% of the offspring will be anemic.
Compared to the other scientific research methods, the principal advantage of the experimental method is that it:
O Observes behavior in its natural setting
O Permits conclusions about cause-and-effect relationships
O can easily be used to study all research questions
O Allows for a description of behavior
The principal advantage of the experimental method is it permits conclusions about cause-and-effect relationships.
What do you mean by experimental research?Experimental research is a study conducted with a scientific approach using two sets of variables. The first set acts as a constant, which you use to measure the differences of the second set.
True experiments have four elements: manipulation, control , random assignment, and random selection. The most important of these elements are manipulation and control.
The goal of the experimental method is to provide more definitive conclusions about the causal relationships among the variables in a research hypothesis than what is available from correlational research.
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Sandy beaches are built up through the process of... A. Destructive forces
B. Convection
C. Weathering
D. Deposition
Answer:
weathering
Explanation:
eroded sediments are transported from a river or stream and then deposited on the bottom. soon, they're channeled to the ocean through river mouths. the movement caused by swells, tides, and breaking waves will then help sand accumulate near the shore
Daughter cells will never re-enter the cell cycle once they are created.
All Hereditary material encoded in Human DNA and is passed from one cell generation to the next via mitosis. The daughter cells are virtually identical to the parent cells and will continue to differentiate / self-renew indefinitely, helping to maintain appropriate stem cell levels in the human body
What do ligands receptor transduction do in cell to cell communication why it’s important
Answer:
In reception, a signal molecule known as the ligand binds to a receptor protein, which causes the shape of the protein to change. In transduction, cascades of intracellular molecular interactions occurs, and relay signals from receptors to target molecules in the cell.
Explanation:
Cell-surface receptors, also known as transmembrane receptors, are cell surface, membrane-anchored (integral) proteins that bind to external ligand molecules. This type of receptor spans the plasma membrane and performs signal transduction, in which an extracellular signal is converted into an intercellular signal.
Definition: Extracellular signalling molecules are cues, such as growth factors, hormones, cytokines, extracellular matrix components and neurotransmitters, designed to transmit specific information to target cells.
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Which of the following best explains why bacteria are able to adapt to
changing environmental conditions?
A Bacteria have DNA that rarely mutates in the population.
B Bacteria reproduce rapidly, allowing mutations to increase in the
population.
C Bacteria reproduce asexually, causing little genetic variation in the
population.
D Bacteria exchange genetic material, which increases the number of
chromosomes in the population.
Answer: B
Explanation:
Which of the following statements about bacteria is correct?
Bacteria:
A. Are present on the skin of healthy people
B. Are only present on the skin of sick people
C. Are found mostly in warmer climates
D. Cannot cause disease in humans
Answer: A
Explanation:
A. Are present on the skin of healthy people.
Bacteria are found everywhere, and they can be on the skin of healthy and sick people. Bacteria can cause disease in humans, although not all bacteria do.
Reason Quantitatively:
The pedigree shows the original parents numbered 1 and 2. They had three children. Compare the numbers in the ratios you determined to the appearance of the trait in the pedigree. Why were Persons 11 and 12 lactose intolerant while Persons 8, 9, and 10 were not?
Based on the pedigree shown and the pattern of inheritance of lactose intolerance, Persons 11 and 12 were lactose intolerant while Persons 8, 9, and 10 were not because they are hom0zygous for the recessive allele for lactose intolerance while Persons 8, 9, and 10 are heterozygous for the recessive allele for the trait for lactose intolerance.
What is lactose intolerance?Lactose intolerance results from a person's inability to produce the enzyme lactase that breaks down the sugar lactose found in milk. Many adults experience lactose intolerance as they age and rely less on milk and dairy products as sources of nutrition. There is another rare form of lactose intolerance that affects infants from birth. A mutated version of the LCT gene that codes for the production of lactase exist as a recessive allele.
A lack of the body's lactase enzyme is the typical cause of lactose intolerance.
Abdominal cramps, bloating, and diarrhea is examples of symptoms.
Avoiding dairy products, using lactose-free goods, or using lactase tablets are the mainstays of treatment.
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Which table shows a proportional relationship between X and Y?
Answer: Table 2
Explanation:
when you divide all the y's by all the x's you get 0.5 for all answers
