Answer:
because it takes longer to process so it would stay longer so it's more dangerous
Compare cladistics with Linnaeus's classification
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Silver and gold are common medals used in making jewelry. Why do you think these metals are used?
A. they are ductile and malleable.
B. they have luster.
C. they cannot be dissolved in water.
D. All of above
Answer:
A. They are ductile and malleable
Explanation:
Although they have luster/shine they can be be dissolved in water and in acid so it can not be all of the above. They are malleable so they can be easily be made into jewelry.
describe what is a ramachandran plot is and what does it represent. also give an approximate phi and psi angles for an alpha helix, a anti parallel beta sheet, and a proline helix.
A Ramachandran plot is a graphical representation used in structural biology to analyze the torsional angles of amino acid residues in protein structures. It depicts the distribution of phi (ϕ) and psi (ψ) angles, which describe the rotation around the N-Cα and Cα-C bonds, respectively, in a polypeptide chain.
The Ramachandran plot helps to identify regions of protein backbone conformation that are energetically favorable and sterically allowed. It provides insights into the allowed conformations of amino acids and aids in validating protein structures, identifying unusual conformations, and detecting structural errors.
Approximate phi and psi angles for common secondary structure elements are as follows:
Alpha helix: The phi angle is around -60 degrees, and the psi angle is around -45 degrees. These values reflect the characteristic right-handed helical conformation of an alpha helix.Antiparallel beta sheet: The phi angle is around -120 degrees, and the psi angle is around +120 degrees. In antiparallel beta sheets, adjacent strands run in opposite directions, resulting in a characteristic zigzag conformation.Proline helix: Proline has a unique structural feature due to its rigid cyclic structure. The phi angle is around -60 degrees, and the psi angle is around +120 degrees for a proline residue in a polyproline helix conformation.It is important to note that these values are approximate and can vary depending on the specific protein and its local environment. The Ramachandran plot allows researchers to explore the conformational space of amino acid residues and identify regions that conform to energetically favorable structural characteristics.
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In a population, if the proportion of individuals who have sickle-cell disease is 0.25, and the population is assumed to be at Hardy-Weinberg equilibrium, what is the expected frequency of the HbS allele? (Hint: What is the genotype of people with sickle-cell disease, and how is that genotype represented in the Hardy-Weinberg equation?) a. 0.125
b. 0.25
c. 0.5
d. 0.75
Therefore, using the value of stated in the question as 0.25, we can determine the frequency of the recessive HbS allele that causes the condition, q. As a result, the HbS allele has a frequency of c) 0.5.
A population's allele frequencies can be estimated using the Hardy-Weinberg equation. The formula p2 + 2pq + q2 = 1 can be used to compute genotype frequencies and dominant (p) and recessive (q) allele frequencies. P+q=1, where p is the recessive allelic frequency and q is the dominant allelic frequency, is the Hardy-Weinberg equation. In addition to representing the binomial expansion of (p + q)2, the Hardy-Weinberg genotype frequencies, p2 + 2pq + q2, also add to one.
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plz help it is really important
Answer:
answer one: during the day the sun's energy heats up land faster which makes the air above warmer
Explanation:
hope this helps!
In the bacterial transformation experiment, what is the primary purpose of using an ampicillin-containing medium?
to select for transformed cells
to select for wildtype cells
to prevent contamination
to stimulate a color change
The primary purpose of using an ampicillin-containing medium in a bacterial transformation experiment is a. to select for transformed cells
In a bacterial transformation experiment, the main goal of employing an ampicillin-containing media is to select for transformed cells. Ampicillin is an antibiotic that prevents bacteria from growing by disrupting the formation of their cell walls. Researchers frequently insert a plasmid harbouring an ampicillin resistance gene into the bacterium as part of a transformation experiment.
The only bacteria that can live and thrive in the presence of ampicillin are those that successfully take up the plasmid and transform. As a result, the ampicillin-containing media functions as a selective agent, enabling the separation of the altered cells from the population and their identification.
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Complete Question:
In the bacterial transformation experiment, what is the primary purpose of using an ampicillin-containing medium?
a. to select for transformed cells
b. to select for wildtype cells
c. to prevent contamination
d. to stimulate a color change
Which of the following is an example of a benefit of a flooded river?
A. Burial and uprooting of plants
B. Removal of leaves from tall trees
C. Deposition of nutrients in the surrounding soil
D. Decreased formation of habitats for organisms
Freckles are a dominant trait in humans. Both of the girls have the genotype FF for freckles. If either one marries a man with no freckles, what are the chances that their children will have freckles?
A. 0%
B. 50%
C. 75%
D. 100%
The answer is D. 100%
PLS HELP ME IF YOU CAN
Explanation:
what is the name of this website
or the book?
Chapter 26 Microbial Diseases of the Urinary and Reproductive Systems 104) Normal microbiota of the adult vagina consist primarily of A) Lactobacillus. B) Streptococcus. C) Mycobacterium. D) Neisseria. E) Candida. 105) Cystitis is most often caused by A) Escherichia coli. B) Leptospira interrogans. C) Candida albicans. D) Neisseria gonorrhoeae. E) Pseudomonas aeruginosa. 106) Pyelonephritis may result from A) urethritis. B) cystitis. C) ureteritis. D) systemic infections. E) All of the answers are correct. 107) Which of the following is NOT primarily a sexually transmitted infection (STI)
Answer:
1. A) Lactobacillus
2. A) Escherichia coli. 3.
3. You did not present the answer options, which prevent this question from being answered. However, I will try to help you with the explanation below.
Explanation:
1. An adult vagina has a microbiota, that is, a group of microorganisms. This microbiota is beneficial and exists to promote protection and vaginal balance. Among the microorganisms present in the microbiota, we can mention Lactobacillus, which are responsible for preventing infections and controlling vaginal pH.
2. Cystitis is a urinary infection caused by the bacteria Escherichia coli, which resides in the human body and is important for digestion, but can cause inflammation of the bladder, as well as other stomach bacteria. Cystitis is not a contagious disease and has symptoms such as fever and difficulty urinating.
3. Sexually transmitted diseases are contagious diseases, caused by microorganisms that are transmitted from one person to another during an unprotected sexual act. Therefore, to answer the third question you should look for the answer option that presents a disease that is not transmitted by unprotected sexual contact.
104. Lactobacillus, 105. Escherichia coli, 106. Pyelonephritis, 107. Neisseria gonorrhoeae.
26. The normal microbiota of the adult vagina primarily consists of Lactobacillus. Therefore option A is correct.
Lactobacillus species are the predominant bacteria in the healthy adult vagina. They play a crucial role in maintaining a slightly acidic pH, which helps prevent the overgrowth of harmful microbes.
Lactobacillus produces lactic acid, creating an inhospitable environment for many potential pathogens. This microbial balance is essential for vaginal health and helps protect against infections.
2. Cystitis, which is inflammation of the bladder, is most often caused by Escherichia coli. Therefore option A is correct.
Escherichia coli (E. coli) is the most common causative agent of cystitis. It is a bacterium that normally resides in the intestines.
However, when E. coli enters the urethra and travels up to the bladder, it can cause an infection. Cystitis is more prevalent in females due to their shorter urethra, which provides easier access for bacteria to reach the bladder.
3. Pyelonephritis, a more severe infection involving the kidneys, may result from: All of the answers are correct. Therefore option E is correct.
Pyelonephritis can result from various routes of infection, including urethritis (inflammation of the urethra), cystitis (inflammation of the bladder), and ureteritis (inflammation of the ureters).
Additionally, it may also occur as a complication of systemic infections, where bacteria from other parts of the body spread to the kidneys via the bloodstream.
4. The following is NOT primarily a sexually transmitted infection (STI): Neisseria gonorrhoeae. Therefore option D is correct.
Neisseria gonorrhoeae is a bacterium responsible for the sexually transmitted infection known as gonorrhea. Therefore, it is indeed primarily a sexually transmitted infection (STI).
In summary, the normal vaginal microbiota is mainly composed of Lactobacillus species. Cystitis is most often caused by Escherichia coli, and pyelonephritis can result from various routes of infection.
Neisseria gonorrhoeae is a sexually transmitted infection, making it different from the other listed pathogens.
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Beneficial bacteria are found in our digestive tract
A. true
B. False
please help
I will give brainliest and 5 * and 10 points for the best answer
I don't want to see an link if I do you will be reported
Answer:
A
Explanation:
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use a web search to determine where (in terms of the dna sequence) the restriction enzyme bamh1 cuts the dna.
The restriction enzyme BamHI cuts the DNA at the recognition sequence 5'-G^GATCC-3', where the caret symbol (^) indicates the site of cleavage.
The restriction enzyme BamHI recognizes and cuts DNA at a specific sequence known as its recognition site. In the case of BamHI, the recognition sequence is 5'-G^GATCC-3'. The caret symbol (^) indicates the site where the enzyme cuts the DNA, specifically between the G and the A in the sequence.
To provide a clearer picture, the sequence 5'-GGATCC-3' is the target site for the BamHI restriction enzyme. Upon recognizing this sequence, the enzyme will bind to the DNA and cleave it between the G and the A, resulting in two DNA fragments.
Understanding the recognition sequence of a restriction enzyme is crucial in molecular biology techniques, such as restriction digestion and DNA cloning. It allows scientists to selectively cleave DNA at specific sites and manipulate genetic material for various purposes, including gene analysis and recombinant DNA technology.
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A. Female
B. Male
C. Female and male
D. Cannot be determined
Answer:
Female
Explanation:
males have an "X X" chromosome while males have "XY"
Why do large organisms require a transport system?
Answer:
The surface area to volume ratio of an organism decreases as its size increases. Ultimately helps organisms, but at the other hand, can't move across the membrane on its own to bring materials like nutrients and water in their cells, or to remove waste material. Specialized transport systems are required for large multicellular organisms.
Explanation:
When members of a species stop reproducing with each other because their sperm and egg do not create viable offspring, this is _______________ reproductive isolation. ILL GIVE BRAINLIEST!! picture also attatched.
A. gamete
B. temporal
C.behavioral
D.mechanical
Answer:
B
Explanation:
Natural selection was proposed by Charles Darwin to explain how species evolve. What is it?
If radioactive Forcing were to increase in a particular region of earth what would you expect to happen to average temperatures
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Which of the following is an example of the endocrine system maintaining homeostasis?
a. Detecting a pain stimulus and sending a signal to the spinal cord to perform an automatic response
b. Discharging an excessive amount of hormones in the blood and not sending a signal to stop production
c. Sending a message to the pituitary gland to start producing a hormone when the levels in the body are too low
d. Using sense organs to get information about the outside world and direct an appropriate body response release
Answer:
I think it's c
Explanation:
Roots do all of the following, except ______.
A. absorb water
B. anchor plants in the ground
C. photosynthesis
Answer:
C. photosynthesis
Explanation:
The main function of roots is to transport water and nutrients to the plant, photosynthesis happens in the chloroplast.
Fill in the blank
DNA IS NOT “TURNED ON” ALL OF THE _____ IN ALL OF THE CELLS.
Answer:
time? maybe I'm not to sure but I wanted to help
The reaction 6CO2 + 6H2O+ energy --> C6H12O6 + 6O2 is a reaction you have probably seen before. a. The reactant 6CO2 enters the plant ____
b. from the atmosphere The reactant energy enters the plant through ____
c. The product C6H12O6 is ____ and is created through the ____ of CO2 d. The product 6O2 is considered a ____
a. The reactant 6CO2 enters the plant from the atmosphere.
b. The reactant energy enters the plant through an external source, such as sunlight.
c. The product C6H12O6 is glucose and is created through the process of photosynthesis, specifically the conversion of CO2.
d. The product 6O2 is considered a byproduct or waste product of photosynthesis, released back into the atmosphere.
a. The reactant 6CO2 enters the plant from the atmosphere. Plants take in carbon dioxide (CO2) from the surrounding air through tiny openings called stomata in their leaves.
b. The reactant energy enters the plant through an external source, typically sunlight. This energy is captured by pigments like chlorophyll during the process of photosynthesis.
c. The product C6H12O6 is glucose, a simple sugar and a source of energy for the plant. It is created through the process of photosynthesis, specifically the conversion of carbon dioxide (CO2) and water (H2O) in the presence of sunlight and chlorophyll.
d. The product 6O2 is considered a byproduct or waste product of photosynthesis. It is oxygen gas released back into the atmosphere as a result of the photosynthetic process. Oxygen is vital for aerobic respiration and supports the survival of other organisms that rely on it for their respiratory processes.
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identify the function of the vacuole. what is the funtion of the vacuole. please explain
food vacuole or granule:- used to contain food for digestion .
contractile vacuole :- used to remove excess water.
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Answer:
vacuole store water nutrients and other materials and in plants support the cell structure.
Explanation:
Which of the following statements best summarizes the metabolic results of photorespiration? • ATP is hydrolyzed, oxygen is produced, and carbon dioxide is consumed ATP, oxygen and carbon dioxide are all produced
• ATP and oxygen are produced and carbon dioxide is consumed • ATP is hydrolyzed, carbon dioxide is produced, and oxygen is consumed • ATP is produced, oxygen and carbon dioxide are consumed
The following statement best summarizes the metabolic results of photorespiration: ATP is hydrolyzed, carbon dioxide is produced, and oxygen is consumed, option C is correct.
Photorespiration is a metabolic process that occurs in plants under certain conditions, such as high temperatures or low carbon dioxide levels. During photorespiration, ATP is indeed hydrolyzed as energy is required for the process. Carbon dioxide is produced through the breakdown of organic compounds, releasing carbon dioxide as a byproduct. Furthermore, oxygen is consumed during photorespiration due to its involvement in the chemical reactions that take place.
This process is considered wasteful for plants as it consumes energy and can lead to a decrease in photosynthetic efficiency. Therefore, this accurately summarizes the metabolic results of photorespiration, option C is correct.
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The complete question is:
"Which of the following statements best summarizes the metabolic results of photorespiration? •
A. ATP is hydrolyzed, oxygen is produced, and carbon dioxide is consumed ATP, oxygen and carbon dioxide are all produced•
B. ATP and oxygen are produced and carbon dioxide is consumed
C. ATP is hydrolyzed, carbon dioxide is produced, and oxygen is consumed
D. ATP is produced, oxygen and carbon dioxide are consumed"
What is the last phase of the Cell Cycle? (This is when the genetic material has already been duplicated and what is left to do is to physically split up the rest of the cell - organelles, cytoplasm, etc. - into two separate, identical cells.)
Answer: mitotic phase
Explanation:
The cell cycle has two phases the Interphase and mitosis. Interphase is the growth phase where the cell prepares itself for the cell division. It is divided into three phase G1 phase( Cell growth),S phase ( DNA synthesis) and G2 phase(cell growth).
Mitotic phase has a multiple steps this is where the duplicated chromosomes are aligned or arranged, separated, and move into two new, identical daughter cells(cytokinesis)
The first step in the mitotic phase is called karyokinesis or nuclear division where the chromosomes are separated and move in opposite direction and the second portion of the mitotic phase, called cytokinesis which is the physical separation of the chromatids into the two daughter cells.
HELP ASAP I REALLY COULD USE YOUR HELP
Answer:
gg
Explanation:
because both are the same recessive trait it would be 25% of offspring would get the trait
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All matter has the same properties.
A.True
B.False
Answer:
True
Explanation:
Answer:
False.
Gaseous matter is non-visible, solid and liquids are visible--already making them different. All matters (including the 4th matter) have different chemical and physical properties.
Name the two different types of translatory motion and explain each in brief
Water flows through plants in the following sequence:
a) transpiration from the leaves
b) absorption from the soil by root hairs
c) movement from roots to stem
d) flow upwards in the stem *
A. c, a, b, d
B. b, c, d, a
C. a, b, c, d
D. c, d, b, a
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Answer:
a ????
Explanation:
●Which of the following increases the amount of carbon dioxide in the atmosphere?
→ c. increased usage of fossil fuel.
may this helps you
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the increase in farm productivity as a result of the invention of the harvester and other farm equipment has:
The increase in farm productivity as a result of the invention of the harvester and other farm equipment has significantly improved efficiency, reduced labor requirements, and increased crop yields.
The invention of the harvester and other farm equipment has revolutionized agricultural practices by automating and streamlining various tasks. These technological advancements have led to increased farm productivity in multiple ways. The harvester, for instance, has mechanized the process of harvesting crops, reducing the need for manual labor and making it more efficient.
Additionally, other farm equipment such as tractors and irrigation systems have improved efficiency in planting, cultivation, and irrigation, further enhancing productivity. By reducing labor requirements and increasing the speed and accuracy of farming operations, these inventions have played a pivotal role in boosting crop yields and overall farm productivity.
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