Answer:
A 2012 meta-analysis found that flu vaccination was effective 67 percent of the time; the populations that benefited the most were HIV-positive adults aged 18 to 55 (76 percent), healthy adults aged 18 to 46 (approximately 70 percent), and healthy children aged six months to 24 months (66 percent).
Explanation:
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In the diagram below, which organelle is the cell nucleus, which stores the
cell's genetic material?
Answer:
Answer is B
Explanation:
The genetic material of the cell is generally stored in the nucleus of the cell. The B structure in the diagram shows the nucleus which is the main location of storage of genetic material.
What is genetic material?Genetic material is the substance in the cell nucleus that is responsible for heredity. It can be DNA in many organisms and in some organisms, it can be RNA also.
The genetic material of the cell is generally stored in the nucleus of the cell.
The B structure in the diagram shows the nucleus which is the main location of storage of genetic material.
Thus, the correct option is B.
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A virus requires a host cell in order to?
_________10. Which of the following groups of plants carry out light dependent and light independent reactions of photosynthesis in separate cells?
A. Plants with chlorophyll C. C3 – plants
B. CAM Plants D. C4 – plants
15 point
Answer:
D. C4 plants
Explanation:
Photosynthesis is the process by which plants and other photoautotrophs synthesize carbohydrates and oxygen from carbon dioxide, water, and light energy in chloroplasts.
Photosynthesis occurs in two stages:
The light-dependent reactions and
The light-independent reactions, or Calvin Cycle.
Light-dependent reactions occur in the presence of sunlight. In these reactions, energy from sunlight is absorbed by chlorophyll and converted into stored chemical energy, in the form of NADPH and ATP. The light-dependent reactions take place in the thylakoid membranes in the grana within the chloroplast.
Light-independent reactions or Calvin cycle: In these reactions, the energized electrons from the light-dependent reactions provide the energy to form carbohydrates from carbon dioxide molecules. There are three phases to the light-independent reactions: carbon fixation, reduction reactions, and ribulose 1,5-bisphosphate (RuBP) regeneration.
C3 plants carry out both the light-dependent and the Calvin cycle within the choroplast organelles. They carry out the Calvin cycle by producing a three-carboncompound called 3-phosphoglyceric acid, hence the name C3.
C4 plants carry out photosynthesis in a two-stage process that first produced a four-carbon intermediate compound in the chloroplast of a thin-walled mesophyll cell. Once synthesized, the plant pumps the intermediate compound into a thick-walled bundle sheath cell, where it splits the compound into carbon dioxide and a three-carbon compound. The carbon dioxide then undergoes the Calvin cycle.
CAM (crassulacean acid metabolism) plants carry out photosynthesis by absorbing sunlight energy during the day, and then using the energy to fix carbon dioxide molecules during the night.
Rocky Mountain spotted fever is caused by _____. A.) Bacteria B.) Virus C.) Rickettsia Who can help out a little bit
Answer:
Bacteria
Explanation:
Rocky Mountain spotted fever (RMSF) is a bacterial disease spread through the bite of an infected tick. Most people who get sick with RMSF will have a fever, headache, and rash. RMSF can be deadly if not treated early with the right antibiotic. There is no vaccine for RMSF.
help me pleasee........
Answer:
Second Question:
If a doctor prescribes antibiotics, its because the you have developed a bacterial infetcion on top of your flu or HIV for example.
Explanation:
What is the difference between causal and correlation relationships?
Explanation:
correlation relationships are between variables, however,it does not automatically mean that the change in one variable is the cause of the change in the values of the other variable. Causation indicates that one event is the result of the occurrence of the other event there is a causal relationship between the two events.
Hope this helps let me know if this was what you were asking for.
The difference between causal and correlation relationships is that
correlation relationships involves two variables in which a change in one
brings about a change in the other while a causal relationship is defined as
an explanation or reason as to why an event occurred
Causal relationship is often referred to as a correlation relationship with a
defined reason or explanation. it is also important to note that not all
correlations imply causation as reasons for some occurrences aren't always
known.
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maintaining a balance within the organism is called
what is the importance of enzymes for living beigns
Answer:
Explanation:
The importance of enzymes in living beings is the way it accelerates chemical reactions in our bodies which make up the life processes that we all go through. They help break down food in our bodies, and are used to bind other molecules in our bodies together to create another one.
Which of the following are not characteristics of the cell wall? Select all that apply.
Answer:
You need to list the characteristics to choose from.
Explanation:
1.
Earth's plates meet at boundaries.
The location where two plates meet is called a plate boundary. Plate boundaries are commonly associated with geological events such as earthquakes and the creation of topographic features such as mountains, volcanoes, mid-ocean ridges, and oceanic trenches.
What is the role of RNA
A) to provide the original blueprint for protein production
B) to move information from the ribosomes to the nucleus for protein synthesis
C) to break down proteins into amino monomers
D) to move information from the nucleus to the ribosomes for protein synthesis
Answer:
B)
to move information from the ribosomes the nucleus for protein synthesis
The role of DNA is to move information from the nucleus to the ribosomes for protein synthesis.
NUCLEIC ACIDS:
Nucleic acids are one of the four biomolecules in nature. The two nucleic acids are DNA and RNA. Nucleic acids are generally involved with the storage and coding of genetic information in living cells. DNA specifically stores genetic information in the nucleus of a cell. During transcription, DNA is transcribed into mRNA (messenger RNA) in the nucleus. This means that the information in the DNA is encoded in an RNA molecule. The mRNA functions to transport the genetic information out of nucleus into the ribosome (site of protein synthesis) where translation takes place. Therefore, the role of DNA is to move information from the nucleus to the ribosomes for protein synthesis.Learn more: https://brainly.com/question/241631?referrer=searchResults
State the difference between sex limited trains and sex influenced traits. According to your perception which one is more Penetrance? (no more that 3 lines)
Answer: Penetrance can be defined as an extent to which a particular gene or set of gene is expressed in the phenotype.
Explanation:
Sex-limited traits are those traits that can observed in organisms belonging to a particular sex or gender. For example, barred coloring in chicken are observable only in roosters.
Sex-linked traits are traits or genes that are carried by either sex chromosomes are sex linked traits. The traits is sickle cell anemia.
Sex-linked traits is of more penetrance, because the trait will be expressed by either sex chromosome X or Y.
Review the equations used to describe photosynthesis and respiration (as provided in the introduction and background section of this experiment). Why was it important to use germinated seeds without leaves for this experiment?
Answer:
1. Photosynthesis equation: 6CO2 + 6H2O + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.
Respiration equation : C6H12O6 + 6O2 --> 6CO2 + H2O + ATP
2. Provided that the seeds had leaves the response between the NaOH and the CO2 would be destroyed by the leaves which would change the oxygen levels in the test tube or cylinder.
Explanation:
Photosynthesis and respiration both are the essential parts of the carbon cycle in atmosphere. Photosynthesis use carbon dioxide from the atmosphere while respiration releases carbon dioxide back in to atmosphere. CO2 is the major component that helps in carbon recycle in carbon cycle.
In this experiment it is required to use the germinated seeds without leaves because seeds with the leaves will disrupt the reaction of NaOH and carbon dioxide that will lead to inaccurate oxygen level in the experiment tube.
Thus, the correct answer is :
1. Photosynthesis equation: 6CO2 + 6H2O + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.
Respiration equation : C6H12O6 + 6O2 --> 6CO2 + H2O + ATP
2. Provided that the seeds had leaves the response between the NaOH and the CO2 would be destroyed by the leaves which would change the oxygen levels in the test tube or cylinder.
Structures in plant leaves open and close to maintain homeostasis are called
Answer:stomata
Explanation:
what is the corona virus
Answer:
Explanation:
any of a group of RNA viruses that cause a variety of respiratory, gastrointestinal, and neurological diseases in humans and other animals
Answer:
Corona virus is a virus, and is actually now a worldwide pandemic, and there are some symptoms such as coughing, a fever, shortness of breath, etc. This virus can be severe, and can cause death.
Explanation:
The most abundant element in the atmosphere can also be found in?
Answer:
beans and whey protein.
An individual has a mutation in the gene that codes for hemoglobin. This results in sickle cell disease. Choose the correct explanation for how this mutation affects the individual's traits.
a. The error in the DNA sequence results in an error in the mRNA molecule during transcription, the error in the mRNA molecule results in an incorrect amino acid in the hemoglobin protein which makes it non-functional. The resulting trait is sickle cell disease.
b. The error in the mRNA sequence results in an error in the DNA molecule during transcription, the error in the DNA molecule results in an incorrect nucleic acid in the hemoglobin protein which makes it non-functional. The resulting trait is sickle cell disease.
c. The error in the DNA sequence results in an error in the mRNA molecule during transcription, the error in the mRNA molecule results in an incorrect nucleic acid in the hemoglobin protein which makes it non-functional. The resulting trait is sickle cell disease.
d. The error in the mRNA sequence results in an error in the DNA molecule during transcription, the error in the DNA molecule results in an incorrect amino acid in the hemoglobin protein which makes it non-functional. The resulting trait is sickle cell disease.
Answer:
a
Explanation:
The correct answer would be that the error in the DNA sequence results in an error in the mRNA molecule during transcription, the error in the mRNA molecule results in an incorrect amino acid in the hemoglobin protein which makes it non-functional. The resulting trait is sickle cell disease.
The direction of the flow of information during genetic inheritance is from DNA to mRNA and finally to protein. The information in the DNA is encoded into mRNA during transcription and the encoded information is translated into protein during the process of translation.
Hence, once there is an error in the DNA, the error is passed on to the mRNA during transcription. The consequence of this error is that the wrong amino acid is translated from the wrong codon.
Hence, the substitution of the correct amino acid by the wrong one in the hemoglobin protein results in a defect or non-functional protein. One of the phenotypic implications of this kind of error is sickle cell disease.
The correct option is a.
An error in DNA results in an error in mRNA during transcription, thereby resulting in an incorrect amino acid in the hemoglobin protein which makes it non-functional, producing sickle cell disease (Option a).
A mutation is any alteration in the nucleotide (DNA) sequence of the genome of an organism.During gene transcription, a specific fragment of DNA called 'gene' is used as template to create a complementary RNA sequence known as messenger RNA (mRNA).Subsequently, this mRNA is used as a template to create a protein in the ribosomes by a mechanism called translation. The triplets of nucleotides or 'codons' in the mRNA sequence determine the correct order of amino acids that will be added to the growing polypeptide (in this case, the hemoglobin protein).In conclusion, an error in DNA results in an error in mRNA during transcription, thereby resulting in an incorrect amino acid in the hemoglobin protein which makes it non-functional, producing sickle cell disease (Option a).
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Which term refers to a solution with more of the same kind of molecules outside the cell than inside the cell?
Answer:
Hypertonic
Explanation:
Hypertonic solution is a solution that has higher concentration of solute outside the cell than inside the cell. It has higher osmotic pressure than another solution.
Example is any glucose solution that with a concentration higher than 5%.
Answer:A
Kkq
Explanation:
hypotheses, Theories, and Laws
Pre-Test Active
1
TIME REMAINING
59:01
Gregor Mendel demonstrated that traits are passed from parents to offspring independently of one another under all
circumstances that he tested. All other genetics researchers have observed this as well. Based on this information, the
statement traits are passed from parents to offspring independently of one another" is
O
a law.
a hypothesis.
O a theory
O an observation.
Mark this and retum
Save and Exit
Next
Submit
The correct answer is A. A law
Explanation:
In science, a law describes a phenomenon or event that always occurs under specific circumstances, and therefore it is constant. Due to this, laws are created based on multiple experiments or observations that lead to the same result. Also, a law only describes a phenomenon but does not explain why this occurs, which belongs to scientific theories.
The statement "traits are passed from parents to offspring independently of one another" by Mendel is a law because it describes a proven and constant phenomenon in genetics. Also, this is the result of the multiple experiments made by Mendel that showed the same result in terms of genetics.
what is the characteristic of the cell jn the epidermis of the skin?
Answer:
Keratinization is seen in the epidermis. Cells in the stratum corneum are essentially just bags of keratin.
Which joints are used while doing these activities?
a Jogging
b. Writing
c. Cycling
Select the correct answer from each drop-down menu.
In an experiment, Dr. Travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. The amount of calcium is variable. The risk of bone fractures .
Answer:
the amount of calcium is variable.
Explanation:
osteoporosis is an illness that is caused by lack of calcium in a person's body.
A mammalian cell is placed in freshwater and bursts from osmotic pressure. Which of the following explains this process?
A)Water moves out of the cell.
B)Solutes move out of the cell.
C)Water moves into the cell.
Behavioral and social cognitive theories emphasize
Answer:
Explanation:
Social cognitive theory emphasizes how cognitive, behavioral, personal, and environmental factors interact to determine motivation and behavior. Social cognitive theory was presented by Albert Bandura in response to his dissatisfaction with the principles of behaviorism and psychoanalysis.
Behavioral and social cognitive theories emphasize the influence of learning and cognition on human behavior.
Behavioral and social cognitive theoriesBehavioral theories, such as classical and operant conditioning, focus on how external stimuli and reinforcement shape behavior. They emphasize the role of environmental factors in shaping and modifying behaviors.
Social cognitive theories, such as social learning theory, highlight the importance of observational learning, modeling, and cognitive processes in understanding behavior. They emphasize that individuals learn not only through direct experience but also by observing others and the consequences of their actions.
Social cognitive theories also emphasize the role of self-efficacy beliefs and how individuals' perceptions of their abilities influence their behavior.
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2 Points
A liquid changes to a gas during evaporation. Which process is the reverse of
evaporation?
O A. Condensation
B. Infiltration
C. Percolation
O D. Precipitation
it’s condensation because from a gas to a liquid the matter condenses
Read the attachment.
Answer:
[tex] \boxed{Translation} [/tex]
Explanation:
Translation refers to the polymerisation of amino acid to form a polypeptide. The order and sequence of amino acids are defined by the sequence of bases in the mRNA.
Translation occurs at ribosome, here ribozyme (rRNA enzyme) acts as catalyst which helps in peptide bond formation. Process of translation has evolved around RNA, which shows that life began around RNA.
DNA contains instructions for making the different molecules, such as proteins, that a cell needs to grow and function. To use these
instructions, the DNA must first be into
A. translated; mRNA
B. transcribed, amino acids
C. translated, amino acids
OD. transcribed, mRNA
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Submit
Answer: TRANSCRIBE mRNA its D
a group of environmentalists was discussing the benefits and drawbacks associated with using fossil fuels. which argument best fits the conversation.
The question is incomplete as it lacks the apropriate options. However, the options are as follows:
1. Fossil fuels are cheaper than alternative forms of energy.
2. Fossil fuel reserves will never be depleted.
3. Fossil fuels are easily renewed.
4. Fossil fuel use does not affect the environment.
Answer:
Option 1. Fossil fuels are cheaper than alternative forms of energy.
Explanation:
Fossil fuels are made by the natural procedure in a more extended time frame, for example, anaerobic decay of the dead living resembling plants, and creatures. These plants and creature's decayed naturally to pilled up to frame coal, or common gases or raw petroleum.
By the utilization of these fuels, the stores are constantly exhausting and as it can not be recharged it will not present in the future. Non-renewable energy sources expand the greenhouse gases in condition and influence it by increasing carbon in climate. Be that as it may, these energizes are less expensive in comparison to different fuels.
Therefore, the right answer is - Fossil fuels are cheaper than alternative forms of energy.
Which of the following is a constructive process?
Answer:
Deposition is a constructive process.
Explanation:
A positive method relates to a mechanism requiring the creation of a single entity or element.
Sediments can be soil or rock formed. Weathered materials which are carried through sheets probably led to a forming of the shape of the soil through influences such as wind , water, gravity, etc.
Answer: Deposition
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10%
1. In simple dominance, what is the result when a dominant allele pairs up with a
recessive allele?
30%
A The recessive form of the trait shows.
B Offspring display both forms of the trait.
80%
O
C Offspring display an intermediate form of the trait.
60%
D The dominant form of the trait shows.
Answer:
The correct answer is : The dominant form of the trait shows.
Explanation:
In simple dominance, the attribute related to the prevailing or dominant allele is communicated while the character related to the latent or recessive allele is persecuted or masked. For instance –
Taking a bloom where the dominant allele attribute is red shading and the recessive allele characteristic is white shading. At the point when a posterity of this bloom is created containing one prevailing or dominant allele and one passive allele, its shade would be red simply because just the predominant allele communicates its characteristic.
Thus, the right answer is: The dominant form of the trait shows.