The two option is correct in this statement A-New matter is added, and old matter is destroyed and B-Matter changes its physical form, allowing it to return to its original state.
What does the term "closed system" mean?Systems are available in two types closed and open. A closed system is one that has no connection to the outside world. This definition is one that is often used in the system literature, thus we have chosen to use it.
Are people closed or open systems?With an external system, humans exchange both substance and energy. For instance, we take in food and excrete waste. Therefore, as a result of our interactions and exchanges, we are an open system.
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The complete question is -
Which two generalizations can be made based on what you know about cycles of matter in a closed system?
A-New matter is added, and old matter is destroyed.
B-Matter changes its physical form, allowing it to return to its original state.
C-The amount of matter within the system remains the same.
D-Matter and energy can cross the boundaries of the system.
E-The cycle has a well-defined starting and stopping point.
CHOOSE THE CORRECT STATEMENT:
A. Open systems have no interactions with other systems.
B. Open systems exchange energy with other systems.
C. Open systems are not normal in nature.
D. Open systems are isolated from other systems.
A system that interacts with the outside world is an open system. These interactions can involve the transfer of information, energy, or materials into or out of the system border. Thus, option B is correct.
What are the properties of open system?Open systems have the potential to function with other systems due to their interoperability and portability, which allow them to be utilized in a variety of situations.
Open systems also make their source code available for learning, modification, and enhancement.
Information, energy, or substances may be transferred into or out of the system border during these exchanges.
Therefore, Open systems exchange energy with other systems.
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the climax, or final stage, of old-field succession is an oak-hickory forest, which is usually well established after 160 years. what happens to the diversity of bird species after 160 years?
The total number of species stays stable, but the quantity of breeding pairs is progressively decreasing.
What is Succession ?
Succession is the process through which a region's species and habitat mix changes over time.
There are two types of biological succession: primary and secondary.
When bare rock or fresh land are exposed, primary succession occurs, creating an environment that can support the earliest colonization of an ecosystem.
The ecological succession known as secondary succession takes place when certain plants and animals still remain after the primary succession has been interrupted.
What are the stages of Succession ?
Nudation, Invasion, Competition and Co-action, Reaction, and Climax or Stabilization are the five stages of succession. At the same location, a succession of biotic communities organically emerge one after another until the Climax stage is reached. In their early stages, biotic communities evolve slowly.
Therefore the overall diversity of species is constant.
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the tricuspid is located between the left atrium and ventricle. a. true b. false
False, the tricuspid is not situated between the left atrium and ventricle; rather, it is situated between the right atrium and the right ventricle, which is located between the left atrium and the left ventricle.
The tricuspid valves support ensuring that blood flows appropriately and in the appropriate direction. The right atrium and right ventricle are connected by the tricuspid valve, which controls blood flow. Blood cannot flow backward between those two chambers as a result. Tricuspid valve opening results from right atrium filling, which allows blood to enter right ventricle.
One of the two sizable chambers at the base of the heart, called ventricles, is responsible for collecting and releasing blood into the lungs and other peripheral regions of the body.
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What do the fields of "Genomics" and
"Biotechnology" have in common?
A. Their research is useless to modern medicine.
B. They both focus on habitats.
C. They both focus on genetics and DNA.
D. They both focus on the physics of the universe.
The fields in common of "Genomics" and "Biotechnology" is that they both focus on genetics and DNA.
What is genomics and biotechnology?
Genomics is the investigation of the aggregate or part of the hereditary or epigenetic grouping data of life forms, and endeavours to grasp the design and capability of these arrangements and of downstream natural items. Biotechnology is innovation that uses natural frameworks, living organic entities or portions of this to create or make various items. Fermenting and baking bread are instances of cycles that fall inside the idea of biotechnology (utilization of yeast (= living organic entity) to create the ideal item).
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What methods of prenatal diagnosis carries the least amount of risk to a developing fetus?
Aggressive prenatal testing Through a vaginal or abdominal puncture to get access to the amniotic cavity, invasive prenatal diagnostic methods directly study fetal cells.
This suggests a slight risk of fetal harm or gestational loss, even though it is currently less than 1%. Prenatal diagnostic made before birth are referred to as prenatal. Your doctor can use it to check for issues with your unborn child. Prenatal diagnostic and chorionic villus sampling are the two major procedures (CVS). Before birth, these tests can help identify genetic abnormalities. Some parents are more likely to have a child who has a genetic condition or another issue.
Abdominal puncture is an in internal medicine, the area where the umbilical cord and the anterior superior iliac spine converge most frequently is the site of a abdominal puncture.
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what is electrophoresis
Answer:
Electrophoresis is a laboratory technique used to separate DNA, RNA or protein molecules based on their size and electrical charge.
Explanation:
Answer:
Electrophoresis is a laboratory technique used to separate DNA, RNA or protein molecules based on their size and electrical charge.
Explanation:
An electric current is used to move the molecules through a gel or other matrix.
the head of the fibula articulates with the . the head of the fibula articulates with the . femur, patella, and tibia tibia femur patella
The head of the fibula articulates with the tibia.
The correct option is tibia.
what is the Fibula?The fibula said to be the long bone in the lower extremity that is positioned on the lateral side of the tibia. The fibula is way smaller and thinner than the tibia.
The Fibula is located just behind the tibial head at the knee joint and then runs down the lateral aspect of the leg until it reaches the ankle joint.
If the fibula is ruptured or fractured it heal with no much problems, but the following complications are possible:
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Along the Mid-Atlantic ridge, the North American plate and the Eurasian plate are_____.
moving closer at a relatively fast rate
moving apart at a very slow rate
moving closer at a very slow rate
not moving relative to each other
Along the Mid-Atlantic ridge, the North American plate and the Eurasian plate are moving apart at a very slow rate. Therefore, option (B) is correct.
What type of plate boundary is found at the Mid-Atlantic Ridge?When two tectonic plates move away from each other, they form a diverging border. Earthquakes are prevalent along these boundaries, and magma (molten rock) rises from the Earth's mantle to the surface, solidifying to form new oceanic crust. Divergent plate boundaries can be seen in the Mid-Atlantic Ridge.
The ridge's features are the result of convection currents within Earth pulling the North American and Eurasian Plates apart. Rising and hardening magma creates new oceanic crust along the boundary.
Therefore, option (B) is correct.
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6. What is cell transport?
3. This organism will help remove the excess nitrate from the water
By lowering the amount of water that leaves the site, recycling drainage water can reduce or possibly potentially eliminate nitrate loss.Although the potential for recycling drainage water is considerable, in most cases the size of the water storage reservoir will be the limiting factor.
This organism will help remove the excess nitrate from the water?
Nitrate from drinking water can be eliminated via distillation, ion exchange units, or reverse osmosis.Keep in mind that boiling water does not get rid of nitrates and is not a substitute for treatment.In actuality, when water evaporates, nitrate concentrations rise.An ion exchange system works similarly to a water softener seen in homes. Although adding plants is a fantastic long-term nitrate reduction method, it is best to take immediate action if your water currently has high nitrate levels. Strong anionic resin in the form of Cl- can be used to remove nitrates through ion exchange.Nitrates can also be effectively removed by reverse osmosis, albeit the molecule's hydrophilic characteristics prevent an ideal removal.In municipal waste water treatment facilities, biological denitrification is employed. Inorganic nitrates, which are composed of nitrogen and oxygen, can be found in the environment both naturally and artificially.The atmosphere, the soil, and the water on earth all contain nitrates.They are extremely soluble in water and readily biodegradable.Animal waste, plant decay, and agricultural byproducts all produce nitrates.Nitrates may enter groundwater supplies due to rainfall, flooding, and soil erosionOne of the most crucial nutrients for healthy plant and crop growth is nitrogen.One of the components of the chlorophyll molecule, which enables plants to produce their own food through the process of photosynthesis, is nitrogen.Nitrates are used as fertilizers for lawns, gardens, flowers, and crops to provide plants this inorganic energy. By using ion exchange resin, distillation, or reverse osmosis, nitrates can be taken out of water.Nitrates are a pollutant that is challenging to remove from water.Sediment filters, carbon filters, and the hollow fiber membrane of an ultrafiltration system will not be able to extract nitrates.In a similar vein, nitrates cannot be reduced or eliminated by a conventional ion exchange water softener.Installing an anion resin tank at the point of entry is the most popular and efficient method of completely eliminating nitrates from your home.Installing an under-sink reverse osmosis system is advised if you only wish to remove nitrates from your drinking and cooking water.Additionally, you can use a water distiller to remove nitrates from a little amount of water at a time.To learn more about nitrate refer
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how do enzymes react when ph levels are not optimal
Answer: The Enzyme activity decreases when PH levels are not optimal.
Ap biology hw campbell
An organelle found in the cells of plants and some algae called a chloroplast is where photosynthesis, the process by which solar energy is transformed into chemical energy for growth, takes place.
What are the function of organelles of chloroplast?The liquid that fills the inside space of the chloroplasts, which enclose the grana and the thylakoids, is known as stroma.
The stroma is now understood to include chloroplast DNA, starch, and ribosomes in addition to the enzymes required for the Calvin cycle and maintain the pigment thylakoids.
Therefore, in chloroplast all organelle work in coordinated way.
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A. Glucose is a common sugar in the bloodstream of humans. The chemical formula for glucose is C6H12O6. Explain how parts of a glucose molecule are used to make amino acids.
Glucose is a monosaccharide containing an aldehyde group (-CHO). It is made of 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.
Glucose does not contain nitrogen like amino acid , so unless any chemical is involved glucose cant be converted to amino acid .
It is also known as dextrose. It is referred to as aldohexose as it contains 6 carbon atoms and an aldehyde group. This is the most abundant organic compound. Glucose is also known as reducing sugar because it belongs to the category open-chain molecule with an aldehyde group. Glucose is an important component of human blood normally ranges from 65 mg to 110 mg of glucose per 100 mL.
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What do forensic scientists do? Answer in 5-7 sentences. Make sure to mention work, ethics, and testimony in your answer.
Answer: Forensic science technicians aid criminal investigations by collecting and analyzing evidence
Most laboratory forensic science technicians work during regular business hours. Crime scene investigators may work extended or unusual hours and travel to crime scenes within their jurisdiction.
Forensic science technicians typically need at least a bachelor’s degree. On-the-job training is generally required for those who investigate crime scenes and those who work in labs. The median annual wage for forensic science technicians was $61,930 in May 2021. Employment of forensic science technicians is projected to grow 11 percent from 2021 to 2031, much faster than the average for all occupations.
About 2,500 openings for forensic science technicians are projected each year, on average, over the decade. Many of those openings are expected to result from the need to replace workers who transfer to different occupations or exit the labor force, such as retiring.
this is what i found on forensic scientists all you gotta do if make this simplified if it needs to be 5 to 7 sentences
a person’s karyotype shows 44 autosomes and one x chromosome. what is the best interpretation of this karyotype?
a person’s karyotype shows 44 autosomes and one x chromosome. the best interpretation of this karyotype is, The karyotype is aneuploid, and the individual has only one allele for each of the genes on the X chromosome
Each of a person's cells normally contains 23 pairs of chromosomes, for a total of 46 chromosomes. The term "sex chromosomes" refers to one of these pairs (X and Y). You will either be a man or a woman, according to them. Your XY pair is male if you are. Your XX pair is female if you are. The remaining 22 pairs, known as autosomes, are identical in both males and females.
Cells for chromosome analysis can be obtained from a blood sample, a bone marrow sample, a swab of cells taken from inside your mouth, a sample of your skin, or a sample of your hair.
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Rewrite the processes in order.
Dispersal / Fertilisation / Germination / Pollination / Growth of Seedling / Growth of Pollen Tube / Release of Pollen / Seed Production
The correctly ordered processes are: Dispersal→ Pollination→ Growth of pollen tube→ Release of pollen→ Fertilization→ Growth of seedling→ Seed production→ Germination .
Pollination is the process of transfer of pollen grains from the anther of a flower to the stigma of another or the same flower. The pollination can occur in same flower, or a different flower of the same plant or even in a different flower of some different plant.
Germination is the process of the development or the sprouting of seed, usually happens after a state of dormancy. During germination, the inactive enzymes stored within the seed become active and aid in the development of the plant.
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What is the term that describes an
element that is "locked away"
(perhaps deep underground in a
deposit) and unable to enter a
biogeochemical cycle?
A. decomposition
B. cellular respiration
C. sequestration
D. biodiversity
Answer:
it’s C sequestration
Explanation:
100 POINTS PLS HELP
Which of these statements best explains why the atmosphere of today was partly due to the interactions of spheres in the past?
Bacteria used nutrients in the soil for volcanic eruptions.
Chemicals released from water formed the atmosphere.
The molten Earth released hydrogen and helium into the atmosphere.
The increase in fertility of soil around the volcano helped produce rain.
Answer:
C. The molten Earth released hydrogen and helium into the atmosphere.
Explanation:
Today's atmosphere is that the molten Earth released hydrogen and helium into the atmosphere due to past sphere interactions.
A tooth held in the alveolar socket of either the maxilla or mandible is an example of a fibrous joint called a.
A tooth held in the alveolar socket of either the maxilla or mandible is an example of a fibrous joint called a Gomphosis.
Gomphosis are immovable joint between the teeth and sockets of the lower and upper jaws. The periodontal ligament is a fibrous tissue that connects the tooth and the alveolar. Joints that move easily are called semi-joints. The singular form is amphiarthrosis. In this type of joint, the bones are connected by hyaline or fibrocartilage.
A symphysis is a type of fibrous joint found between parallel bones. The gaps between the bones are wide, either filled with a fibrous interosseous membrane or narrowed by ligaments that lie between the bones. Sutures are a type of suture found only in the skull that holds bone plates together. It is a fibrous joint. Sutures are held together by a matrix of connective tissue called Sharpey fibers that grow from each bone to adjacent bones.
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What is the name of poisonous proteins produced and secreted by some bacterial cells?.
Exotoxins are poisonous proteins produced and secreted by some bacterial cells.
Nearly wherever we look, both within and outside of living things, there are microbes. Toxins produced by these pathogens are the main contributors to illnesses.
Exotoxins are heat-labile proteins that are mostly released by a few uncommon bacterial species. Once the poisons have been released, they disperse into the surrounding medium and injure the host cells either by interfering with their normal function or by killing them outright.
Exotoxins, as the name implies, are poisons created by the bacteria themselves as a byproduct of their metabolism. Diseases caused by these toxins include: Scarlet fever, Botulism, Scalded skin syndrome.
Examples of exotoxin producing bacteria are:
Clostridium botulinum (Botox),Clostridium tetani (Tetanus)Corynebacterium diphtheriae (Diphtheria).To know more about exotoxins visit the link:
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diaphragms group of answer choices are effective even without spermicides. must be removed within two hours following intercourse. create a physical and chemical barrier to sperm. have a low effectiveness rate.
Diaphragms create a physical as well as a chemical barrier to sperm.
So, the correct option is C.
A barrier technique of birth control uses a diaphragm or cap. It fits within the copulatory area of females and blocks sperm from penetrating the cervix (the entrance of your womb). In order to prevent sperm and egg fertilization from occurring, the diaphragm works as a physical and chemical barrier. For women searching for an affordable, effective birth control method that doesn't interfere with their body's hormonal balance, the diaphragm is an excellent choice. It is portable and may be carried anywhere in a bag, pocket, or backpack. It is possible to place many hours before intercourse, and neither party typically feels it.
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the rabbits were ruining darcy's garden so she came up with a plan. she put a poison on the plants that would make the rabbits very sick, but not kill them. to her delight, the rabbits started staying away from her plants. what is the unconditioned stimulus
The rabbits were ruining Darcy's garden, so she came up with a plan. She put a poison on the plants that would make the rabbits very sick, but not kill them. To her delight, the rabbits started staying away from her plants. The plant is the unconditioned stimulus.
What is unconditioned stimulus?
An unconditioned stimulus is one that elicits an intuitive response. In Pavlov's experiment, the meal functioned as the unconditioned stimulus. An unconditioned response is a reflexive reaction to a stimulus. The dogs' unconditioned response in Pavlov's experiment was their salivation for food.
Hence the correct answer is the plants.
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PLEASE HELP I GIVE YOU 20 POINTS PLEASE HELP ME PLEASE HELP IF YOU GIVE ME THE RIGHT ANSWERS I GIVE YOU 20 POINTS PLEASE HELP PLEASE HELP ME
3. Create a "role-play" or "practice session" between you and an imaginary person who is either abusing drugs or encouraging you to abuse drugs. Include in your role-play these items:
a. The persons involved
b. The scenario
c. The dialogue between you and your friends
d. What you would say to them to discourage their abuse of drugs
e. What you would say or do to refuse to participate
4. Summarize your thoughts on the following questions.
a. What are the dangers of over-the-counter drugs?
b. What can you do to reduce the risk of abusing over-the-counter drugs?
Answer: pretty sure the answer is ⠀ ⠀ ⠀, hope this helps! :))
Explanation:
Check all that are a function of skeletal muscle tissue.
a. Regulation of blood pH
b. Body movement
c. Maintenance of posture
d. Heat production
e. Regulating elimination of materials
f. Protection and support
Skeletal muscle tissue has five primary functions:
Body movement
Maintenance of posture
Heat production
Regulating elimination of materials
Protection and Support
Skeletal muscles allow humans to move and carry out daily tasks. They are important in respiratory mechanics and in maintaining posture and balance. They also protect the body's vital organs.
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under what circumstances does membrane transport require energy?
Answer:
Active transport
Explanation:
As it is against the concentration gradient
The membrane is a small part that is practically a cell which travels through the body.
What is Energy Transport?Energy is a very precious component of human body. We have energy in the form of heat, electricity, and food. The membrane is just a way for our cells to move. The sole reason we need energy is that the chemicals and energy which are needed for our cells to stay alive is not the energy we consume.
The process of membrane transport is known as energy transport, which is different from energy. It differs in meaning, but energy is a route of transporting energy to where you want it. We need to direct it to do things that what you intend to command , like move your body and move your mind, and move your senses.
Energy is a measure of how much work it is needed to move a material. So when someone is moving energy, the work that you need to do to make the material move is directly proportional to the energy you want to have for moving . So when you are moving materials, you are either moving energy (in a biological sense) or you are moving matter (in a physical sense).
Thus, the membrane is a small part that is practically a cell which travels through the body.
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Which evidence suggests that early earth was subject to frequent impacts from asteroids and meteoroids?
O Ancient rock layers are thinner than more recent layers due to bombardment.
O There are many records of mass extinctions in early rock layers.
O Iridium is common in asteroids and is widespread in older rock layers.
O Iridium is rare in older rock layers and more common in younger ones.
Evidence implies that the early earth was vulnerable to numerous collisions from asteroids and meteoroids because ancient rock strata are thinner than more recent layers.
The correct answer is A .
How did old rock layers come to be?When particles from the air or water settle, layered rocks are created. Steno's Law of Original Horizontality states that most sediments were initially deposited horizontally after being generated. The majority of stratified rocks, though, are no longer horizontal.
What are the oldest rock layers?The oldest rock on Earth is found in bedrock along the Hudson Bay coast in northeastern Canada. Mostly for archival purposes, this information is available.
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free radicals can damage the dna inside cells, which directs how cells grow and develop. this damage is particularly influential in the development of
From research it can be concluded that free radicals can damage the dna inside cells, which directs how cells grow and develop. this damage is particularly influential in the development of Cancer.
How free radicals damage cells.Free radicals are are molecules that exist for a very short period of time and they are uncharged. Free radicals are produced in the body through the cell metabolism and they react with biomolecules.
Free radicals damage cells like proteins, DNA by taking their electrons away through oxidation process and when it has overpower the cells ability to function on, it lead to diseases.
Therefore, Free radicals damage cells by stealing or taking away the cells electrons.
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The diagram below shows the structure of an animal cell.
Which number label represents the nucleolus?
6
5
3
2
Answer: 5
Explanation:
Explanation: I hope this helps.
Answer:
what two lines of evidence support how meiosis may have evolved from prokaryotic conjugation?
Meiosis has evolved from prokaryotic conjugation because it is involved in sexual cycle in eukaryotes as transformation is in prokaryotes.
Meiosis and transformation are essential phases of eukaryotic and bacterial sexual cycles, respectively. Both procedures are intricate modifications that are encoded by numerous genes. In the process of meiosis, non-sister homologous chromosomes (resulting from the fusing of gametes from different parents) align and go through genetic recombination in the nucleus of diploid eukaryotic cells of the germ line. A haploid gamete receives the recombined genome after that, and when it fuses with another gamete, it produces a diploid offspring cell.
Similar to meiosis, bacterial transformation happens inside a bacterial cell when non-sister homologous chromosomes (or portions of chromosomes) from separate parent cells align and undergo genetic recombination. A new bacteria is created from the recombined DNA.
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i can make my own food sometimes i also eat food i can have one or two parents my cells have an organized.nucleus i am usually madenof only one cell but sometiems i am made of many cells.what domain and kingdom am.i
Answer:
Fungi
My cells have an organized nucleus. I am usually made of many cells, but sometimes I can be single celled. I cannot make my own food, so I must eat. I can have one or two parents.
Protista
I can make my own food, but sometimes I also eat food. I can have one or two parents. My cells have an organized nucleus. I am usually made of only one cell, but sometimes I am made of many cells.
Archaebacteria
I am only made of one cell. My cell does not have an organized nucleus. I only have one parent. Sometimes I make my own food, but other times I eat food. I like to live in volcano vents, salt water of deep oceans, or the freezing cold arctic.
Eubacteria
I can make my own food, but sometimes I eat food. I am single celled, and I only have one parent. My cell does not have an organized nucleus. Sometimes I cause diseases. Other times I am a decomposer.
Explanation:
Hope this helps.
