Answer:
The everyday product in my home having synthetic material is non-stick pans. it is used in everyday for cooking purpose. The modern non-stick pans have a coating of Teflon (PTFE or polytetrafluoroethylene) and teflon is a synthetic fluoropolymer. it is constitute of many strong carbon-fluorine bonds which allow it resistant to solvents.
The average lifecycle of non-stick pan is five years and your its last days will be seen when the surface starts to peel. It is advice to change the non-stick cookware after few years as it can affect the food and health of a person.
Which category does the antibiotic pencillin fall under?
Quinolones
Macrolides
Methicillin
Beta-lactams
Answer:
d) Beta-lactams
Explanation:
Beta-lactam antibiotics include compounds such as penicillins, and cephalosporins.
A person drops two objects from the same height. One object weighs 15 N,
and the other weighs 10 N. How does the mass of the objects relate to the
force of gravity on them?
O A. The 10 N object has more mass than the 15 N object.
B. The 10 N object has the same mass as the 15 N object.
O C. The 15 N object has twice the mass of the 10 N object.
OD. The 15 N object has more mass than the 10 N object.
SUBMIT
Answer:
The 15 N object has twice the mass of the 10 N object.
Explanation:
Answer:
D
Explanation:
15 N object has more mass than the 10 N object.
Which of the following is not a characteristic of living things
Answer:
C. Must be able to reproduce
Explanation:
A. All living things must grow and develop
B. Single-celled organisms exist and are considered living things.
D. All living things must have DNA in their cells.
Click the line from the poem that is a simile. Lucy cheering, filled with hope Peter sulking like a mope Handsome Howard is the hero Pesty Peter is the zero
Answer:
Lucy cheering, filled with hope Peter sulking like a mope Handsome Howard is the hero Pesty Peter is the zero
After the egg hatches, the amphibian breathes with gills and swims around in the water. What stage of the amphibian life cycle is this?
adult stage
larvae stage
egg stage
metamorphic stage
After the egg hatches, the amphibian breathes with gills and swims around in the water therefore the stage of the amphibian life cycle is larvae stage and is denoted as option B.
What is an Amphibian?This is referred to as a cold-blooded vertebrate animal which is characterized by having an aquatic gill-breathing larval stage followed by a terrestrial lung-breathing adult stage. Example of this type organism include frogs, salamanders etc and they don't undergo the pupa stage in their life cycle.
In the larval stages, they use gills to respire as they live in water and as the larvae grows and mature they develop lungs to respire on land. This is therefore the reason why they are able to survive in both aquatic and terrestrial environment and is therefore the treason why option B was chosen as the correct choice.
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Which statement is true of X chromosomes?
OA. Only men have them.
OB. Women have two of them.
OC. Only women have them.
O D. Half of the babies born do not have them.
Answer:
B. Women have two of them.
Explanation:
Women have two X sex chromosomes (XX). A and C are incorrect because both men and women have at least one X chromosome. Resultingly, D is also incorrect because all babies have at least one X chromosome regardless of gender.
What does Raman spectroscopy use to identify substances?
O A.
infrared light
B.
electron light
C.
ultraviolet light
D.
vibration
E.
absorption
Reset
Answer:
The light source used in Raman spectroscopy is a laser.
Answer:
infrared light for plato
Explanation:
What is the largest vein in the body?
Answer:
Inferior Vena Cava
I hope this helps :)
What environmental input is necessary for the Calvin cycle reactions?
The environmental input that is necessary for the Calvin cycle reactions is carbon dioxide (CO₂). It is captured and utilized by the enzyme Rubisco to convert carbon dioxide into glucose during the process of photosynthesis.
The Calvin Cycle, also referred to as the dark reaction, C3 cycle, or carbon fixation, is a sequence of enzyme-assisted reactions that occur in the stroma of chloroplasts in photosynthetic organisms. The Calvin cycle is responsible for transforming carbon dioxide (CO₂) into a high-energy molecule, which is used to produce glucose. This procedure occurs in three stages: carbon fixation, reduction, and regeneration. Environmental input for Calvin CycleIn the Calvin cycle, carbon dioxide is required as an environmental input.
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the centromere is a group of proteins that attach to the kinetochore. is a region of dna where sister chromatids associate. is not present on the chromosomes of the daughter cells until anaphase. is a group of proteins that attach to the mitotic spindle. is only present when chromosomes are highly compacted
The kinetochore, a section of DNA where sister chromatids associate, is where the centromere, a collection of proteins, attaches.
Do sister chromatids associate with the centromere region of DNA?The centromere is a region of specialized chromatin that is located within each constricted chromosome. It provides the framework for kinetochore assembly and acts as a location for sister chromatid attachment.
The centromere, which resembles a constrictive area of a chromosome, is crucial in assisting the cell divide up its DNA during division (mitosis and meiosis). It is specifically the spot where the cell's spindle fibers are attached.
By directing the construction of the microtubule-binding kinetochore and acting as the cohesion site between sister chromatids, centromeres play crucial roles in the segregation of equal chromosomes.
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fiona is at a point in her pregnancy when the zygote is moving down to her uterus, and the placenta and umbilical cord are beginning to form. fiona is currently experiencing , whereas misaki is at a point in her pregnancy during which the major organs and structures of her baby are first developing. misaki is currently experiencing
Fiona is currently experiencing the implantation stage of pregnancy, where the zygote is moving down to her uterus and the placenta and umbilical cord are beginning to form. On the other hand, Misaki is currently experiencing the embryonic stage of pregnancy, where the major organs and structures of her baby are first developing.
Fiona is currently experiencing the implantation stage of her pregnancy, when the zygote moves down to the uterus and the placenta and umbilical cord begin to form. On the other hand, Misaki is experiencing the embryonic stage of her pregnancy, during which the major organs and structures of her baby are first developing.
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I don't understand this, please help me
Rock layer 1 is older than Rock layer 2.
Rock layer 1 is typically the oldest layer in a sequence of sedimentary rocks, as it was laid down first and is thus the oldest. Rock layer 2 would have been laid down after Rock layer 1, so it is younger.
What is Sedimentary rock?
Sedimentary rock is a type of rock formed by the accumulation of sediments over time. It is formed from the erosion and deposition of materials that have been transported and deposited by water, ice, or wind. Sedimentary rocks are usually layered, with the oldest layers at the bottom and the youngest layers at the top. Examples of sedimentary rocks are limestone, shale, sandstone, and conglomerate.
Rock layer 1 is older than Rock layer 2 because it is typically the oldest layer in a sequence of sedimentary rocks and was laid down first. Sedimentary rocks are formed from the erosion and deposition of materials that have been transported and deposited by water, ice, or wind and are usually layered, with the oldest layers at the bottom and the youngest layers at the top.
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STEMscopedia: Introduction to photosynthesis answers
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars.
what is photosynthesis ?The process in which plants, algae and certain bacteria use light energy of sunlight, water, carbon dioxide and convert light them into chemical energy and starch. called as photosynthesis.
Photosynthesis occur in special organelles named chloroplast which has its own DNA, genes and hence can synthesize their own proteins.
Chloroplasts have stroma, fluid, and stack of thylakoids known as grana, three types of chlorophyll such as chlorophyll a, chlorophyll b, and carotenoids.
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n 2012, scientists studied modern marchantia liverwort plants and observed that they not only are able to make their own food using energy from sunlight but also absorb chemical nutrients from plant material in aquatic environments. they classified this plant as a chemoautotroph. photoautotroph. mixotroph. chemoheterotroph.
They classified this plant as a C. mixotroph.
A mixotroph is an organism that's capable of utilizing a variety of energy and carbon sources rather than having a single trophic mode mostly on a continuum ranging from complete autotrophy at one final moment to heterotrophy at the other.
Mixotrophs are thought to account for more than half of all the microscopic plankton. There are two kinds of eukaryotic mixotrophs: those that have their own chloroplasts and those that acquire them thru kleptoplasty, symbiotic associations with prey, or enslavement of their organelles.
Photo- and chemotropic, litho- but instead organography (osmotrophy, phototrophy, and monocytosis), auto- but also heterotrophy, and other combinations are possible. Mixotrophs can be eukaryotic or prokaryotic.
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Complete question:
In 2012, scientists studied modern Marchantia liverwort plants and observed that they not only are able to make their own food using energy from sunlight but also absorb chemical nutrients from plant material in aquatic environments. they classified this plant as a
A. chemoautotroph
B. photoautotroph.
C. mixotroph
D. chemoheterotroph.
The average time for one complete cell cycle is 20 hours in a normal chicken
cell. What would you expect to see in a cancerous chicken cell?
O Cancerous chicken cells and normal cells will have the same total amount of time
to complete the cell cycle.
O Cancerous cells will complete mitosis in a shorter amount of time.
Cancerous cells will spend more time in interphase.
ct Cancerous cells will not complete
phases of the cell cycle.
Answer:
B. Cancerous cells will complete mitosis in a shorter amount of time.
Explanation:
Cancer cells reproduce quicker as they dont have control of their growth rate.
Which of the following planets has the largest orbital radius compared to the others?
Group of answer choices
Jupiter
Mercury
Saturn
Venus
Answer:Jupiter
Explanation:
is the largest of all the planets. It has a radius of 71,492 kilometers at the equator and a radius of 66,854 kilometers at the poles
Question a)What is an IMU sensor? b)What is gait analysis? wwwwwww c) How can we measure joint angles? Please offer at least two methods. d) How will you define balance?
An IMU sensor, or Inertial Measurement Unit sensor, is a device that combines multiple sensors to measure and report the orientation, position, and motion of an object. It typically includes accelerometers, gyroscopes, and magnetometers. The accelerometer measures linear acceleration, the gyroscope measures angular velocity, and the magnetometer measures the direction and strength of the magnetic field.
By combining the data from these sensors, an IMU sensor can provide information about the movement and orientation of the object it is attached to. Gait analysis refers to the study and assessment of human walking patterns. It involves analyzing the biomechanics of walking to understand and evaluate various aspects such as stride length, step width, joint angles, and timing of movements. Gait analysis can provide valuable information about an individual's walking mechanics and can be used for diagnostic, rehabilitative, and research purposes. It is commonly used in fields such as sports science, physical therapy, orthopedics, and biomechanics.
There are several methods to measure joint angles:
Goniometers are simple tools that measure joint angles directly. They consist of a stationary arm, a movable arm, and a protractor-like scale. The stationary arm is placed parallel to one bone segment, the movable arm is aligned with the other bone segment, and the angle between them is read from the scale.
Motion capture systems use multiple cameras or sensors to track the movement of reflective markers placed on specific body landmarks. These systems can accurately measure joint angles in three dimensions by tracking the positions of the markers over time.
Balance can be defined as the ability to maintain the body's center of mass within the base of support. It involves the coordination of multiple systems, including the musculoskeletal, sensory, and nervous systems. Balance is essential for maintaining stability during both static (stationary) and dynamic (moving) activities.
Maintaining balance requires the integration of sensory information from the vestibular system (inner ear), proprioceptive system (muscles and joints), and visual system (eyes). The brain processes this information to make adjustments in posture, muscle activity, and weight distribution to maintain equilibrium.
Balance can be assessed through various tests, including standing balance tests, functional reach tests, and dynamic balance tests. Impaired balance can result in an increased risk of falls and can be indicative of underlying health issues or musculoskeletal impairments. Rehabilitation programs often include balance training exercises to improve stability and reduce the risk of falls.
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True or False: Muscles can contract even when there is no visible movement.
Answer:
TRUE
Explanation: is correct
What can an understanding of concentration help you do?Select one or more:[ ] Provide the correct amount of medication in a liquid medicine[ ] Predict the boiling and freezing points of pure water[ ] Control the amount of sanitizing chemicals in a pool[ ] Analyze the molecular structure of a pure crystalline solid
An understanding of concentration can help you do several things, including providing the correct amount of medication in a liquid medicine, controlling the amount of sanitizing chemicals in a pool, and analyzing the molecular structure of a pure crystalline solid.
Concentration is a measure of the amount of solute present in a given amount of solvent or solution, and it is an important concept in many fields, including chemistry, biology, and medicine.
Knowing the concentration of a solution is important in medicine because it allows healthcare providers to provide the correct dose of medication in a liquid form. In a pool, concentration is important because it helps to ensure that the proper amount of sanitizing chemicals is present to kill harmful bacteria and prevent the spread of disease. Analyzing the concentration of a pure crystalline solid is important for understanding its properties, such as melting and boiling points, and for predicting how it will behave under different conditions.
Overall, an understanding of concentration is essential in many scientific and practical applications, from healthcare to manufacturing to environmental monitoring. It allows us to control and predict the behavior of solutions, solvents, and solids, and to make informed decisions about their use and handling.
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Which choice describes a strategy used to help restore cod populations?
limit the size of fishing fleets and catches
restrict fishing to trawling nets
allow fishermen to harvest from protected areas when necessary
harvest only very young fish
Answer: Limit the size of fishing fleets and catch size.
Explanation: Cod are nearly extinct therefore we either need to stop catching them or limit the amount you catch
The choice describes a strategy used to help restore cod populations is limiting the size of fishing fleets and catches. The correct option is A.
What are cod populations?Atlantic cod, a fish that was essential to New England's economy, is being fished at historically low levels, and New England cod appears to be recovering from overfishing after many years.
Many people are concerned about eating fish because the IUCN has recently classified species including cod, haddock, and grouper as endangered. The fish that are linked to high bycatch rates are another worry for divers. Animals like dolphins and turtles are accidentally killed in the nets at this location.
Therefore, the correct option is A. limit the size of fishing fleets and catches.
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____ spermatogonia divide through meiosis to create _____ spermatids with ____ chromosomes each
Haploid; 2; 46
Diploid; 4; 23
Diploid; 4; 46
Haploid; 2; 23
Answer:b
Explanation:
Diploid spermatogonia divide through meiosis to create 4 spermatids with chromosomes 23 each, which is option B, as during spermatogenesis, diploid spermatogonia divide through mitosis to produce primary spermatocytes, which then undergo meiosis I to produce two haploid secondary spermatocytes.
What is cell division?Spermatogenesis is the process by which diploid spermatogonia (sperm stem cells) divide and differentiate into mature haploid sperm cells. The process of spermatogenesis takes place in the seminiferous tubules of the testes. During the first stage of spermatogenesis, the diploid spermatogonia divide through mitosis to produce primary spermatocytes. Each primary spermatocyte then undergoes meiosis I to produce two haploid secondary spermatocytes. These secondary spermatocytes then undergo meiosis II to produce four haploid spermatids. The spermatids then differentiate into mature sperm cells through a process called spermiogenesis.
Hence, diploid spermatogonia divide through meiosis to create 4 spermatids with chromosomes 23 each, which is option B, as during spermatogenesis, diploid spermatogonia divide through mitosis to produce primary spermatocytes, which then undergo meiosis I to produce two haploid secondary spermatocytes.
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Explain how to distinguish different species by their DNA.
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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PLEASE HELP, WILL GIVE BRAINLEIST. Explain the difference between primary and secondary succession. please not such a simple answer
Answer:
Primary succession begins on a newly exposed surface
while secondary succession begins on soil.
Primary succession basically takes place on "lifeless" areas as result of a disturbance for example, Glaciers and lava flow from valcanos.
Secondary succesion begins from things such as forest fires or an abandon field.
The Keynesian Transmission mechanism will eliminate a recessionary gap if there are not Liquidity Trap or Insensitive Investment function. Explain: a) What it is a liquidity trap b) What it is insensitive investment function
The Keynesian Transmission mechanism refers to the process by which changes in government spending or monetary policy can affect aggregate demand and ultimately impact the overall economy.
In theory, this mechanism can be used to eliminate a recessionary gap, which is a situation where the economy is operating below its potential due to low demand. However, there are two important caveats to this. First, if the economy is in a liquidity trap, the Keynesian Transmission mechanism may not be effective. A liquidity trap occurs when interest rates are already at very low levels, making it difficult for monetary policy to stimulate demand through lower interest rates. In this situation, fiscal policy (i.e. government spending) may be a more effective tool for closing the recessionary gap. Second, if the investment function is insensitive, the Keynesian Transmission mechanism may also be less effective. The investment function refers to the relationship between interest rates and investment spending by firms. If firms are not very responsive to changes in interest rates, then monetary policy may not be as effective in stimulating investment and closing the recessionary gap. In this situation, fiscal policy may again be a more effective tool. In summary, the effectiveness of the Keynesian Transmission mechanism in eliminating a recessionary gap depends on whether the economy is in a liquidity trap and whether the investment function is sensitive to changes in interest rates. If either of these conditions is not met, other policy tools may be needed to stimulate demand and close the gap.
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Consider a food web in which snakes eat mice; toads eat beetles; owls eat mice and toads; eagles eat rabbits, snakes, and owls; cougars eat deer; and foxes eat rabbits and mice. What animal occupies (gets energy in) more than one trophic level
The animal that takes energy from more than one trophic level is eagle due to eating of many organisms.
Which animal gets energy in more than one trophic level?The eagle is the animal that takes energy from more than one trophic level in the given food web because in this food web eagle feeds on animals such as rabbit, reptile such as snake and bird such as owls.
So we can conclude that the animal that takes energy from more than one trophic level is eagle.
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In this case, the owls and eagles are two animals that occupy more than one trophic level in the food web.
What is a trophic level?A trophic level is a specific position in the food web that one population and/or organism occupies in the ecosystem.
An organism can have different roles in an ecosystem and thus occupy more than one trophic level.
Organisms in the first trophic level are called producers, whereas primary consumers are located in the second level.
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What would you expect to happen to a plant experiencing a lack of water in its chloroplasts?
a. Less oxygen would be released to the environment with fewer H2O molecules present
b. Less ATP and NADH would be produced without the electrons from H2O
c. Less energy would be available in the light independent phase to build carbohydrate molecules
d. All of the above
Answer:
Its A Less oxygen would be released to the environment with fewer H2O molecules present
Explanation:
Write the feature if the class cyclostomata
=
7. Which is not a similarity between how
plants and animals use energy?
O Both plants and animals change food into
energy in the mitochondria.
O Both plants and animals require energy to
survive.
O Both plants and animals eat food and turn
it into energy.
O Both plants and animals break down food
into energy.
Answer:
Both plants and animals eat food and turn it into energy.
Explanation:
Plants cannot eat food because they use photosynthesis to make it, and they use the sun as one of the ways to get energy and not eating food.
What is the structure directly outside the nucleus that has ribosomes bound to it?.
The ribosome that is making the protein is directly attached to the ER membrane. Generally speaking, the endoplasmic reticulum's function is to produce proteins that allow the rest of the cell to function. It might be rough or smooth.
These proteins are made by tiny, circular, elongated organelles called ribosomes, which are located on the rough endoplasmic reticulum. Rough endoplasmic reticulum, often known as rough ER, refers to regions of the ER where membrane-bound ribosomes are present. This enormous organelle is composed of extremely convoluted, flattened, sealed sacs that are located close to the nuclear membrane. Because ribosomes are found on its outer surface, which is the surface that comes into contact with the cytoplasm, the endoplasmic reticulum is referred described as being "rough." Because of the distinctly rough appearance that an ER has when ribosomes link to its surface, it is known as a Rough ER. Ribosomes are not present on the surface of a smooth ER, on the other hand. Ribosomes are affixed to its membrane by this organism.
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In eukaryotes, ribosomes can either be free—meaning they can move around freely in the cytoplasm—or bound—meaning they are attached to the endoplasmic reticulum or the outer nuclear envelope.
The reticulum is a vast network of interconnected, membranous, infolded, and twisted sacks that is present in the cytoplasm of the cell (rough ER)
Rough ER has ribosomes on its surface that give it a rough look.
The ribosome that is making the protein is directly attached to the ER membrane.
This membrane-bound ribosome coating of the ER surface is referred to as rough endoplasmic reticulum (also known as rough ER).
Therefore, the ribosome-bound structure immediately outside the nucleus is known as the endoplasmic reticulum.
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Gut bacteria found in the human stomach (very low pH) would be classified into which kingdom?
plantae
archaebacteria
fungi
protista
animalia
eubacteria
The 3rd one - fungi, double check