What are some advantages and disadvantages of mutations?
Answers
Answer:
advantages: helps diversify the gene pool, aids in evolution (If there weren’t mutations everyone would look the same)
Disadvantages: could harm or kill the organism, an example of this is cancer or Down syndrome
Explanation:
depending on where the mutation occurs on the DNA strand, or gene, results could help or harm the organism
Related Questions
Which of the following is not an example of green infrastructure?
OUrban tree canopy
O Permeable pavement
Rainwater harvesting
Streets and parking lots
Answers
Answer:
Streets and parking lots
Explanation:
The example that is not an example of green infrastructure from the given options is Streets and parking lots.Green infrastructure refers to the network of natural and semi-natural features, green spaces, and ecological systems in cities and towns. It is an approach to managing stormwater runoff that emphasizes infiltration and the use of natural systems to filter pollutants from water.Green infrastructure helps to manage stormwater, improve air quality, and create healthier urban environments. It includes practices such as urban tree canopy, permeable pavement, and rainwater harvesting. Streets and parking lots, on the other hand, are not examples of green infrastructure.
Indoor air pollution receives less attention than outdoor air pollution, yet it exerts severe health impacts on millions of people.
a. True
b. False
Answers
During the nitrogen cycle, through which structure are nitrogen compounds first absorb into the plant?
A.) roots
B.)leaves
C.) flower
D.) stem
Answers
Answer:
It's B
Explanation:
I took the test
Answer: B (Leaves)
Explanation:
Did it engenuity unit test
Look at the slide from an oral presentation about fossils. A slide that reads, "fossils: how they help us understand the past. " there is a photo of a fossil. What should be added to this slide to make it more effective?.
Answers
Description of the fossil shown on the slide provide some background information on the specific fossil that is shown in the photo, such as what type of organism it belonged to, where it was found, and how old it is.
Explanation of how fossils help us understand the past: Describe how fossils provide evidence for the evolution of life, reconstruct past environments, or help to date the age of rocks.
Additional examples of fossils: Show more photos of different types of fossils and describe how each one contributes to our understanding of the past.
Comparison with modern organisms: Showing a photo of a modern organism that is related to the fossil, or a comparison of the fossil with a modern organism could help to illustrate how fossils can provide information on the evolution of life.
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Answer:
Description of the fossil shown on the slide provide some background information on the specific fossil that is shown in the photo, such as what type of organism it belonged to, where it was found, and how old it is.
Explanation:
Identical twins with similar values and preferences are not very strongly attracted to one another's fiancés. This fact has been used to suggest that romantic attraction is influenced by
A) fluid intelligence.
B) the social clock.
C) secondary sex characteristics.
D) chance encounters.
E) basic trust.
Answers
D) chance encounters. Romantic attraction is an emotional state that is not easily explained and is often determined by chance encounters.
In the case of identical twins, who share many characteristics such as values, beliefs, and preferences, it has been found that they are not strongly attracted to one another's fiancés.
This suggests that chance encounters, rather than any predetermined factors, play a greater role in determining romantic attraction. Chance encounters can help people to form emotional connections with others that would not have been possible without a chance meeting.
For instance, a chance encounter may lead to a conversation that would not have been possible otherwise, which could lead to the formation of a strong bond between two people.
Chance encounters can also provide people with opportunities to explore different aspects of their personalities, and also to explore different aspects of their environment, which can in turn lead to them forming strong emotional connections with others. Thus, chance encounters can play a major role in forming strong romantic connections.
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The lymphatic system absorbs glucose that is absorbed by small intestines for transport.
True
False
Answers
False. The lymphatic system does not directly absorb glucose from the small intestines for transport.
The absorption of glucose from the small intestines primarily occurs through the blood vessels in a process called intestinal absorption. After food is digested in the small intestines, glucose molecules are transported across the intestinal lining into the bloodstream. This process is facilitated by specialized cells in the intestinal wall called enterocytes.
The lymphatic system, on the other hand, plays a crucial role in the absorption of dietary fats. It absorbs fat molecules, known as fatty acids and glycerol, from the small intestines in the form of chylomicrons. These chylomicrons are then transported through the lymphatic vessels and eventually enter the bloodstream.
Glucose, being a simple sugar, is absorbed directly into the bloodstream through the blood capillaries in the small intestines, not through the lymphatic system. Therefore, the statement that the lymphatic system absorbs glucose from the small intestines for transport is false.
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true or false: enzymes are sensitive to environmental conditions and, as a result, many enzymes function best only across a narrow range of temperature and ph.
Answers
True enzymes are sensitive to environmental conditions and, as a result, many enzymes function best only across a narrow range of temperature and ph.
What factors affect enzyme activity ?Temperature, pH, and concentration are just a few examples of the variables that might have an impact on enzyme activity. Inadequate conditions can make an enzyme lose its capacity to bind to a substrate. Enzymes function best within specific temperature and pH ranges.
A biological catalyst is an enzyme. They decrease activation energy, just like other catalysts, enabling processes to move in the desired direction. They are typically sensitive to the temperature, pH, and salt concentration of the environment they work in since their action depends on the folding of a protein.Enzymes quicken processes by reducing activation energy. Proteins called enzymes rely on their three-dimensional structure to perform specific tasks. The overall change in free energy for a process is unaffected by enzymes.Learn more about Enzyme here:
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Which statement about cellular respiration is true?
O It produces oxy
O It requires water
O It is used by every living cell.
O It converts energy to food.
Answers
. The following statements describe the word tolerance. Which of the
statements best describes the term tolerance in Science?
a. Tolerance is how much you can handle.
b. Tolerance is examining other people's complex behaviors.
c. Tolerance is a legal definition that lawyers use in criminal cases.
d. Tolerance is the capacity of a species to withstand a variety of
environmental conditions.
Answers
Answer:
The answer is A.
Explanation:
"the ability or willingness to tolerate something, in particular the existence of opinions or behavior that one does not necessarily agree with."
In science, the term tolerance is how much a person can handle. Therefore, option A is correct.
What is tolerance?the capacity or readiness to put up with anything, especially the presence of ideas or actions with which one may not necessarily agree. patience, suffering, and fortitude; as well as kindness, objectivity, and unbiased thinking. Tolerance and toleration both support a person's right to do something they disagree with. Tolerance implies a liberal attitude toward other people's beliefs and behavior, such as tolerance for religious minorities.
Limit dimensions, unilateral tolerances, and bilateral tolerances are the three fundamental tolerances that are most frequently found on working drawings.
The term tolerance means how much you can handle. Therefore, option A is correct.
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How do the nervous system and endocrine system work together?
O A. Glands are found in the nucleus of a nerve,
O B. Nerves connect glands to hormones.
O C. Nerves instruct glands to send out hormones.
O D. Hormones bind to nerves to stop them from activating.
Answers
Answer:
The answer is option C.
Nerves instruct glands to send out hormones.
Hope this helps.
Answer:
Nerves instruct glands to send out hormones
Explain how to distinguish different species by their DNA.
Answers
DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.
To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.
The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.
These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.
By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.
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These animals all have similar
structures, but are not closely
related. Why do they all have
wings?
A. They have the same solution to the
same problem - escaping predators by
flying.
B. They each came up with a different
solution to the problem of escaping
predators.
C. They have a common ancestor that
had wings.
D. It is unclear why they have wings.
Answers
if you drop a human cell into pure water in a petri dish, water molecules will pass into the cell membrane, causing the cell to swell or sometimes even burst if it has no active mechanism to expel the water. what process is happening here?
Answers
The process is happening when we drop a human cell into pure water in a petri dish, water molecules will pass into the cell membrane is osmosis.
Osmosis is the spontаneous net movement or diffusion of solvent molecules through а selectively permeаble membrаne, in the direction thаt tends to bаlаnce the solute concentrаtions on the two sides, from а region of high wаter potentiаl (region of lower solute concentrаtion) to а region of low wаter potentiаl (region of higher solute concentrаtion).
In the case above, a human cell isа region of high wаter potentiаl and pure water is а region of low wаter potentiаl. It makes water molecules will pass into the cell membrane, causing the cell to swell or sometimes even burst if it has no active mechanism to expel the water.
Your question is incomplete, but most probably your full options were
a. metabolism
b. diffusion
c. osmosis
d. cellular respiration
Thus, the correct option is D.
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Explain how bacteria can be both harmful and helpful.
Answers
The species of bacteria that colonize our respiratory and digestive systems help set up checks and balances in the immune system. White blood cells police the body, looking for infections, but they also limit the amount of bacteria that grow there. Likewise, bacteria keep white blood cells from using too much force. Bacteria also help out by doing things cells are ill-equipped to do. For instance, bacteria break down carbohydrates (sugars) and toxins, and they help us absorb the fatty acids which cells need to grow. Bacteria help protect the cells in your intestines from invading pathogens and also promote repair of damaged tissue. Most importantly, by having good bacteria in your body, bad bacteria don’t get a chance to grow and cause disease.
Some species of bacteria in your body can result in diseases, such as cancer, diabetes, cardiovascular disease, and obesity. Usually, these diseases happen only when the normal microbiome is disrupted, but that can occur even from antibiotics. Antibiotics kill bacteria, and some of those will be good bacteria that we need to protect our health. When that happens, the bad bacteria that normally are kept in check have room to grow, creating an environment ripe for disease.
Bad bacteria can exist at low levels in your body without causing harm or can grow too much and wreak havoc. Staphylococcus aureus can cause something as simple as a pimple or as serious as pneumonia or toxic shock syndrome. P. gingivalis can cause gum disease, and was recently linked to pancreatic cancer (read our article find out more). Similarly, when not suppressed by good bacteria, Klebsiella pneumonia can cause colitis, and subsequently lead to colorectal cancer.
In addition to allowing disease-causing bacteria to flourish, the elimination of good bacteria throws the immune system out of whack. The result can be simple allergies or very debilitating autoimmune diseases. Without the right balance of bacteria, your body might suffer from constant inflammation.
Inflammation is the body’s alarm system, which calls white blood cells to heal a wound or to get rid of infection. Chronic inflammation, however, can make the body more susceptible to autoimmune diseases and cancer, such as causing inflammatory bowel disease which if uncontrolled can cause colon cancer.
Why does your skin wrinkle when you stay
too long in the pool?
A.Because of active transport that makes the pool water get into your cells.
B. Because of passive transport that makes the chlorine move from low to
high concentration making it move into your skin
C. Because of diffusion of water and chlorine into your skin
D. Because of osmosis that makes water inside your skin cells move out to
dissolve the chlorine molecules in the pool
Answers
Answer:
C Because of diffusion of water and chlorine into your skin
Explanation:
How to breathe in CO2 and give out oxygen?
Don't dare to spam :p
Answers
Answer:
when you inhale ( breathe in ), air enters your lungs and oxygen from the air move from your lungs to your blood. at the same time carbon dioxide moves from your blood to the lungs and is exhaled ( breathe out ). this process is called gas exchange and is essential to lifeAnswer:
was your old username glitchkpopstan
In the light dependent reactions of photosynthesis, light energy is converted into chemical energy.
True
False
Answers
Which element would most likely have an electron affinity measuring closest to zero?
Answers
Ar(Argon) have an electron affinity measuring closest to zero .
Answer:
Argon/ Ar
Explanation:
what is homeostasis?
Answers
[_______] is a fuel your body uses for energy.
a) Protein
b) Glucose
c) Cellulose
Answers
answer the is ProteinJdjdjdj
How can proteins interact with dna and recognize dna sequences without unwinding the dna double helix? multiple choice question
Answers
Proteins can interact with DNA and recognize DNA sequences without unwinding the DNA double helix. How.Proteins can interact with DNA and recognize DNA sequences without unwinding the DNA double helix because of their specific DNA-binding domains. Proteins that interact with DNA can include transcription factors, DNA helicases, and DNA polymerases.
These proteins are capable of recognizing specific DNA sequences by using their specific DNA-binding domains, which can include zinc fingers, leucine zippers, helix-loop-helix, and homeodomains. These domains can interact with the DNA helix and enable proteins to recognize specific DNA sequences without unwinding the DNA double helix.
However, certain proteins can require DNA unwinding to interact with the DNA, such as DNA polymerases that use unwound DNA as a template to replicate DNA sequences during DNA replication. The mechanism that proteins use to interact with DNA sequences without unwinding the DNA.
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What is the most medial muscle of the leg?
Answers
Answer:
gracilis muscle
Explanation:
A red bloom cell has diameter of 0.008mm. a model of the red blood cell has a diameter of 80mm. What is the scale of the model
Answers
Scale of the model: 1:10,000. To find the scale of the model, we need to compare the size of the model to the actual size of the red blood cell. Given that the diameter of the red blood cell is 0.008mm and the diameter of the model is 80mm, we can calculate the scale by dividing the diameter of the model by the diameter of the actual cell.
Scale = Model diameter / Actual cell diameter
Substituting the given values:
Scale = 80mm / 0.008mm
Simplifying the expression:
Scale = 10,000
Therefore, the scale of the model is 1:10,000.
1. Identify the diameter of the red blood cell: 0.008mm.
2. Identify the diameter of the model: 80mm.
3. Use the formula Scale = Model diameter / Actual cell diameter.
4. Substitute the values into the formula: Scale = 80mm / 0.008mm.
5. Simplify the expression to find the scale: Scale = 10,000.
6. The scale of the model is 1:10,000, indicating that the model is 10,000 times larger than the actual red blood cell.
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the term that means tumor of the gland that secretes earwax is
Answers
The term that means tumor of the gland that secretes earwax is ceruminoma. Ceruminoma is the term that means tumor of the gland that secretes earwax. It is also known as aural polyp and can cause complete obstruction of the ear canal leading to hearing loss.
Ceruminomas are rare tumors that are usually benign and are typically located in the ear canal. The exact cause of ceruminomas is unknown, but they are thought to arise from the ceruminous glands that secrete earwax. Another term for ceruminoma is ceruminous gland adenoma.
Ceruminous gland adenomas are more common in dogs than in humans. In humans, ceruminomas are usually found in the ear canal, but they can also occur in the parotid gland. A ceruminous adenoma is a benign glandular neoplasm which arises from the ceruminous glands located within the external auditory canal.
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if all cells contain the exact same copy of DNA, how do they become specialized?
Answers
Even if all the cells have the same DNA they biochemical function are different, that's because differents sets of genes must be turned on and off in each cell type by the action of enzymes and other molecules. Each cell have the same 20,000 or so genes but they are biochemically selected by the action of molecules as hormones and chemical signaling. Therefore, different cells use different parts of the DNA code as directions.
hey guys im not begging for help here but ive been stuck for 10 minutes and my time is running out!
Answers
Answer is B. You can tell that from the table.
Please help i'm stuck on this and it's due soon, questions are in the images, will give brainliest!
(the images go with part A and B)
Part A :
In a wooded area in North Carolina, two teenagers discovered an abandoned pistol and a few other items that led them to call 911. Crime scene personnel and investigators processed the scene and found human remains along with other items. They then photographed all the evidence at the crime scene. Analyze the photographs of the skeletal remains and other items and determine the gender and age of the victim.
Part B: Examine visible trauma marks and other evidence found at the crime scene and make a preliminary hypothesis on the cause and manner of death.
Part C:Research four databases and describe how these databases would help you investigate this case.
Answers
From the photographs presented, investigation reveals that the gender and age of the victim are:
Age: Elderly, at least 40 years old;Gender; Female. This is clear from the hip and the shoe type discovered as the scene.What is the preliminary hypothesis on the cause and manner of death?The hypothesis or cause of death is a gun shot to the head. This is evidenced by the exhibit 23 - a bullet shell and the hole in the skull of the victim.
The databases that can help with these kind of investigations are:
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Estrogen from what organ inhibits the mammary glands from responding to prolactin until birth?
O placenta O ovary O uterus
O endocrine
Answers
Estrogen from the placenta inhibits the mammary glands from responding to prolactin until birth.
Estrogen from the Ovaries does not inhibit the mammary glands from responding to prolactin until birth. In fact, estrogen plays a supportive role in preparing the mammary glands for lactation.
During pregnancy, the placenta is the primary source of estrogen. The placenta produces high levels of estrogen, which promotes the growth and development of the mammary glands in preparation for milk production. Estrogen, along with other hormones like progesterone, helps stimulate the growth of ductal networks and the proliferation of mammary gland cells.
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genetic inferences can be made on the basis of consistently observed phenotypic differences.
Answers
Genetic inferences can be made on the basis of consistently observed phenotypic differences. This statement is true. Phenotypic differences can be observed between different individuals, and these differences may be due to genetic factors.
What is a phenotype?
A phenotype refers to the observable characteristics of an individual that arise as a result of the interaction between their genotype and the environment. It is the physical appearance of an individual. These observable characteristics may be used to infer information about the individual's genotype, which refers to their genetic makeup or genetic constitution.
The phenotype is affected by several factors, including genetics, environment, and interactions between the two. As a result, consistent phenotypic differences between individuals may be due to genetic differences.
In conclusion, genetic inferences can be made on the basis of consistently observed phenotypic differences. These differences can be used to infer information about the individual's genotype.
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What are the characteristics of life that all living things have in common?
Answers
Answer:
Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
Explanation: