Choose all the right answers. What happens when the energy of a machine is transformed into heat?
The energy is destroyed.
.
The energy can always be used for additional work
The energy usually cannot be recovered.
The energy usually cannot do any further work.
Answers
Things happens when the energy of a machine is transformed into heat the energy usually cannot be recovered and the energy usually cannot do any further work.
The correct option C and D .
In general , Second Law of Thermodynamics, which states that in any energy conversion process, some energy will always be lost as heat, and this loss is irreversible helps in energy transformation from one form to another, such as from mechanical energy to heat energy.
Also, energy of a machine is transformed into heat, the energy usually cannot be recovered in its original form or used to do additional work with the same efficiency as the original energy. Heat energy can still be used for other purposes, such as heating a building or powering a steam turbine.
Hence , C and D are the correct option
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Related Questions
Which question about a soil sample can be answered using the sense of touch?(1 point) What color is the soil? What color is the soil? Is the soil grainy? Is the soil grainy? How quickly does water flow through the soil? How quickly does water flow through the soil? Does the soil smell good or bad? Does the soil smell good or bad?
Answers
The question that can be answered using the sense of touch is : ( B ) is the soil grainy
Sense of touch
The graininess of the soil can be felt by the touch of the hands because it is a physical attribute of the soil that can be seen and touched as well. the color of the soil and how quickly water flows through the soil can only be examined with the physical eyes but cannot be felt.
Hence we can conclude that the question that can be answered using the sense of touch is the soil grainy.
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which electron microscope technique below is used to image the surfaces of objects ranging in size from a virus to an animals head
Answers
The electron microscope technique used to image the surfaces of objects ranging in size from a virus to an animal's head is scanning electron microscopy (SEM).
Electron microscopy is a technique for imaging specimens utilizing a beam of electrons instead of visible light.
Electron microscopes can achieve much higher magnification and resolution than conventional optical microscopes because they utilize electrons instead of light.
The Scanning electron microscope (SEM) is one of the most commonly utilized types of an electron microscope. SEM is a method of imaging the surfaces of specimens utilizing an electron beam, and it is well-suited for examining a wide range of samples, from single cells ,viruses to an animal's head
It is used to study samples in a variety of scientific fields, including biology, chemistry, and physics, among others.
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Plants use the green pigment chlorophyll to a. absorb sunlight. b. store sunlight. c. reflect sunlight. d. change light to heat.
Answers
Answer: A
Explanation:
What best defines biodiversity? The variety of traits a species has A group of organisms of one species All the different habitats and ecosystems found around the planet and in outer space All the different plants, animals, fungi, microorganisms, and variety of ecosystems found on Earth
Answers
Answer:
All the different plants, animals, fungi, microorganisms, and variety of ecosystems found on Earth
Explanation:
Biodiversity can be broken down into "Biological" and "diversity" which means the how diverse in number and variety is the life found on Earth. Life represents all living organisms like plants, animals, microbes etc.
Based on this, all the different plants, animals, fungi, microorganisms, and variety of ecosystems found on Earth is the option that best defines biodiversity. The other options leaves out the variety (talked about only one species) and biological aspect of the term.
Answer:
The answer is D) All the different plants, animals, fungi, mircroorganisms, and variety of ecosystems found on Earth.
Explanation:
Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level.
polyp and medusa ____ can produce female offsprings through parthenogenesis.
Answers
Polyp and medusa jellyfish can produce female offspring through parthenogenesis.
Parthenogenesis is a form of reproduction in which offspring are produced without the involvement of a male. In some species, including some jellyfish, females can produce offspring through parthenogenesis if they are not able to mate with a male or if the male is not present.
This process involves the activation of an egg cell, which then divides and forms a clone of the mother. The resulting offspring are genetically identical to the mother, and are usually female, as males are produced through a different process involving fertilization. This means that parthenogenesis can be used to produce all-female populations of jellyfish.
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Which best describes what is occurring in this population of squirrels? Number of Squirrels Entering and Leaving a Population after 1 Year Cause of change Number of squirrels Died from predation 2 Born 4 Immigration 10 Left to find food 3 Died from disease 8 Left to find a mate 3
Answers
Answer:
Explanation:
The population of squirrel is decreasing and this can be traced to the environment not being favorable for their growth and development.
Looking at the data generated,
Died from predation =2
Born=4
Immigration=10
Left to find food =3
Died from disease=8
Left to find mate=3
If all the squirrel did not abandon their habitat and they all live there a total of 2+4+10+3+8+3= 30 squirrel would have been present, but given that only 4 were born and that others left for another place the population is reduced to 4 and 26 squirrel gone this has lead to a reduced population.
Answer:
A
Explanation:
Population growth is decreasing.
Which statement explains how producers are dependent upon consumers for their survival?
A. Consumers supply oxygen for producers to undergo aerobic respiration.
B. Consumers provide chemical energy needed by producers for cellular respiration.
C. Consumers produce carbon dioxide for producers to use during photosynthesis.
D. Consumers make lactic acid that producers use in photosynthesis.
Answers
Answer: it's c
Explanation:
The statement that explains how producers are dependent on consumers for their survival is "Consumers produce carbon dioxide for producers to use during photosynthesis," which is present in the option C.
What is the importance of the consumer?The ecosystem must have both the consumer and the producer, as neither can survive if one gets eliminated from the ecosystem. The producer makes oxygen and glucose by taking the carbon dioxide that is released by the consumer, and in an ecosystem, there are many types of consumers, such as herbivores and carnivores. The consumer depends upon the producer for oxygen and food, while the producer depends upon the consumer and decomposer too.
Hence, the statement that explains how producers are dependent on consumers for their survival is "Consumers produce carbon dioxide for producers to use during photosynthesis," which is present in the option C.
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Which characteristics of a force can be measured?
intensity and temperature
friction and power
direction and magnitude
input and output
Answers
Answer:
Either A or C but A is a bit more true
Explanation:
You can measure one on option C but you can measure both
on answer A. Hope this helps you out.
What are the building blocks of proteins
Answers
Answer:
Amino acids
Explanation:
Amino acids
Which statements are true about variations in the genetic code?
Select all that apply.
A) All organisms display huge differences in their genetic code.
B) They may result in diseases.
C) They may provide selective advantages.
D) Slight differences in the genetic code may have significant results.
Answers
Answer:
C) They may provide selective advantages.
D) Slight differences in the genetic code may have significant results.
Explanation:
The genetic code is universal, and present in most living beings . Generally, in most living organisms, the same codons are assigned to the same amino acids.
DNA sequences make up genes that may have multiple variants, called alleles. DNA deoxyribonucleic acid, is transcribed into mRNA and then translated into amino acids that form proteins.
Natural selection mainly acts on phenotypes, which are dependent on proteins and the organisms's environment. Phenotypes conferring advantageous traits are favored by the selection process- these help groups of organisms evolve over time.
what will happen to OTHER ORGANS if kidneys malfunction due to certain disease
Answers
Answer:
when your kidneys get affected in a negative way waste products start to build up in your body. It can cause some breathing troubles, poor sleep, weakness in your body,etc.
Explanation:
What phase splits the cell’s nucleus into two new nuclei?
Answers
Mitosis phase is the phase that splits the cell’s nucleus into two new nuclei.
A cell will undergo mitosis to form two new nuclei and then divide to form two new individual cells during the mitotic phase.
Mitosis is the process by which a cell divides its duplicated DNA into two new nuclei. Mitosis is divided into stages. The first stage is prophase, during which the DNA condenses and organizes, revealing the classic chromosome structure. Prometaphase follows, during which microtubules attach to the chromosomes. This is followed by metaphase, during which the chromosomes align. Anaphase occurs after metaphase, when the chromosomes separate. Finally, nuclear membranes reappear around the two sets of chromosomes during telophase. Mitosis is now finished. Cytokinesis is the process by which two new cells are formed after mitosis.
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Using hierarchical levels,explain how it is possible to create different types of cells and organisms
Answers
If all the plants in a habitat suddenly died, what would happen to the animals?
A.
The animals would plant new plants.
B.
The animals would start eating rocks.
C.
The animal population would grow because they would have more space.
D.
Animals that could not leave would also die after some time.
Answers
Answer:
D. Animals that could not leave would also die after some time.
Explanation:
A is incorrect because animals aren't like humans, and most likely don't know how to plant and grow new plants. B is incorrect because no animal eats rocks. C is incorrect because even though they have "more space", they don't have any plants to eat so they would die off. This leaves answer D which is correct because they would die off as well. Plants and animals depend on each other.
Answer:
the answer is d
Explanation:
the animals that eat the plants will die from starvation and the animals that eat them will then also die from starvation
Which is easier to observe, the physical or chemical properties of an object
your answer with evidence from the passage?
Answers
physical because physical changes are changes that are changed Physically and it is easy to observe
Explanation:
seeing a candle on fire and seeing a milk transferring to youghurt...
Question 7 of 10
Which statement correctly describes a difference between specialized cells
and unspecialized cells?
A. Specialized cells have specific functions, while unspecialized cells
perform all functions in an organism.
B. Unspecialized cells are temporary and short-lived, while
specialized cells last the life of the organism.
C. Specialized cells can perform any function, while unspecialized
cells perform specific functions in an organism.
OD. Specialized cells are temporary and short-lived, while
unspecialized cells last the life of the organism.
Answers
The correct statement describing the difference between specialized cells and unspecialized cells is option A: Specialized cells have specific functions, while unspecialized cells perform all functions in an organism.
Specialized cells, also known as differentiated cells, are cells that have undergone a process called cellular differentiation, where they acquire specific structures and functions to carry out specialized tasks within an organism. These cells are tailored to perform specific roles in various tissues and organs. Examples of specialized cells include neurons, muscle cells, and red blood cells. Each type of specialized cell is adapted to perform its unique function efficiently, such as transmitting electrical signals, contracting, or carrying oxygen.
On the other hand, unspecialized cells, also known as stem cells or undifferentiated cells, have not yet acquired specific structures or functions and are capable of giving rise to different types of specialized cells. They have the potential to develop into various cell types through a process called differentiation. Unspecialized cells can divide and differentiate into specialized cells to repair damaged tissues or replace old cells. Stem cells are found in various locations in the body, such as bone marrow and embryos.
In summary, specialized cells have specific functions and are adapted to perform specific tasks, while unspecialized cells are versatile and can potentially differentiate into various specialized cell types.
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thus, for the outcome of 3 (a particular macrostate), there are 2 microstates. how many possible ways are there to roll a 5 ?
Answers
for the outcome of 3 (a particular macrostate), there are 2 microstates. There is only one way to roll a 5.
The number of microstates that can give rise to a particular macrostate is known as entropy.
A macrostate is a state in which a body appears to be in equilibrium, whereas a microstate is a specific arrangement of particles that makes up a macrostate.
For the outcome of 3 (a particular macrostate), there are 2 microstates. To calculate the number of possible ways to roll a 5, we will use the formula for probability.
We can calculate the probability of getting a specific number on a die by dividing the number of possible outcomes by the total number of outcomes.
Let's suppose we want to roll a 5. There is only one way to do so, which is to roll a 5 with a single die.
There are 6 possible outcomes for rolling a single die. As a result, the probability of rolling a 5 is P(rolling a 5) = Number of ways to roll a 5/Total number of outcomes (rolling a 5) = 1/6.
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I need help with this plz
Answers
Answer:
Carbohydrates = main source of energy for living things
Lipids = Stores energy as fats, oils, and waxes
Proteins = Building materials of living things
Nucleic Acids = stores genetic information
Explanation:
hope that helped.
A scientist is investigating mutations. she observes a mutation where one or more nucleotides are inserted into a sequence of dna. the scientist claims that this insertion mutation will affect genetic variability. Is the scientist correct? why or why not?
Answers
A researcher is looking at mutations. She notices a mutation in which a DNA sequence has had one or more nucleotides added. This insertion mutation, according to the expert, will impact genetic diversity. The researcher is right.
Yes, the scientist is correct. Insertion mutations can have a significant impact on genetic variability by altering the DNA sequence and potentially leading to changes in the resulting protein.
These changes can affect the structure, function, and activity of the protein, which can in turn affect the traits and characteristics of an organism. Therefore, insertion mutations can contribute to genetic diversity within a population, which is important for the survival and evolution of species.
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Which of these more commonly describes lipids?
vitamins and minerals
minerals and water
fats and vitamins
fats and oils
Answers
Answer:
fats and oils
Explanation:
Answer:
fats and oils
just took the test
Explanation:
a low serum concentration of hemoglobin is most often associated with a deficiency of
Answers
A low serum concentration of hemoglobin is most often associated with a deficiency of iron.
Iron is an essential mineral required for the production of hemoglobin, which is the protein in red blood cells responsible for carrying oxygen throughout the body. Without sufficient iron, the body cannot produce enough hemoglobin, leading to a decrease in the concentration of hemoglobin in the bloodstream, also known as anemia.
Other factors that can cause low hemoglobin levels include vitamin B12 or folate deficiencies, blood loss, chronic disease, and certain medications. A low serum concentration of hemoglobin is most often associated with a deficiency of iron. Iron is a crucial component of hemoglobin, which is responsible for carrying oxygen in the blood.
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Making Comparisons Read the definition of parasites and predators, and then explain how parasites differ from predators.
Answers
Answer:
Parasites only wish to suck the life out of their prey, but predators wish to kill and eat their prey. The main difference is killing what they eat.
D
Question 1
A variable is something that can be changed in an experiment. Look on the SIMULATION pane.
What are the three variables you can change in your laboratory?
Predict: Which of these variables do you think will have the greatest effect on the aliens? Why?
Get the Gizmo ready:
.
Click Reset.
Select the BAR CHART tab.
Turn on Show numerical values.
Observe: Change the Light to 0 hours/day, the Water to 1 drops/hr, and the to 0 °C. Click Play, and
observe the aliens until the numbers are stable. Click Pause.
1. How many of each type of alien are there now?
.
O Thin: 50 Medium: 25 Thick: 25
O Thin: 20 Medium: 80 Thick: 0
15 pts
O Thin: 0 Medium: 80 Thick: 20
Thin: 2 Medium: 8 Thick: 90
Answers
The variable with the greatest effect on the aliens is the temperature. When the temperature is set to 0 °C, all of the thin aliens die off and the medium aliens thrive, while the thick aliens remain unchanged.
What is temperature?Temperature is a measure of the thermal energy of a system, which can be expressed in terms of the average kinetic energy of the atoms or molecules in a system. Temperature is closely related to the concept of heat, which is a measure of the total thermal energy of a system. Temperature is a physical quantity that is typically measured with a thermometer, and is expressed in units such as degrees Celsius (°C), degrees Fahrenheit (°F), or Kelvin (K). Temperature is an important factor in many scientific and engineering processes, and is often used to indicate the level of activity or reaction within a system. Temperature can also be used to indicate the rate of diffusion of a particle or substance, and has been used to measure the speed at which a particular process is occurring.
This demonstrates the effect temperature has on the different types of aliens, as the thin aliens are more sensitive to changes in temperature than the medium and thick aliens.
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Aerobic respiration is more efficient than anaerobic respiration
Answers
Answer:
Aerobic cell respiration is roughly 18 times more efficient than anaerobic cell respiration. Your cells require a lot of energy and are dependent on the high efficiency of aerobic respiration. Overall, aerobic respiration converts about 40% of the available energy of glucose into ATP.
Write a paragraph about trains that were made in 1800's.
Answers
Answer:
This significant aspect of the design was transferred to later locomotives. Railways were made out of cast-iron until the 1800s. Cast iron was sadly susceptible to corrosion and it was weak, often causing it to collapse under stress. John Birkinshaw invented a more robust material, wrought iron, in 1820.
Explanation:
Which set contains the most closely related terms?.
Answers
The set that contains the most closely related terms is option C, which includes the terms megasporangium, megaspore, egg, and ovule. These terms are all related to the process of plant reproduction and specifically to the female reproductive structures of plants.
Megasporangium is the structure within the ovule that produces the megaspore. The megaspore then develops into the female gametophyte, which contains the egg. The ovule is the structure that contains the female gametophyte and is eventually fertilized by the male gametophyte, or pollen, to form a seed.
Option A includes the terms microsporangium and microspore, which are related to male reproductive structures, and egg and ovary, which are related to female reproductive structures. Carpels are also a part of the female reproductive system, but are not directly related to the other terms in the set.
Option B includes microsporangium, microspore, and ovary, which are all related to the female reproductive system, but carpel is again not directly related to the other terms.
Option D includes megasporangium and megaspore, which are related to the female reproductive system, and ovule, which is the structure that contains the female gametophyte. However, pollen is related to the male reproductive system and is not directly related to the other terms in the set.
Therefore, option C contains the most closely related terms in terms of plant reproduction and specifically the female reproductive structures.
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Complete question is:
Which set contains the most closely related terms?
A) microsporangium, microspore, egg, ovary
B) microsporangium, microspore, carpel, ovary
C) megasporangium, megaspore, egg, ovule
D) megasporangium, megaspore, pollen, ovule
La clonación y manipulación genética son dos áreas de la biotecnología que no han generado debate ético, social y político en todo el mundo. Falso
Verdadero
Answers
The statement "La clonación y manipulación genética son dos áreas de la biotecnología que no han generado debate ético, social y político en todo el mundo" is false.
These two areas of biotechnology have generated significant ethical, social, and political debate around the world. This is especially true when it comes to cloning humans or genetically modifying human embryos to create "designer babies."In many countries, the debate over cloning and genetic manipulation centers around the ethical implications of playing God with genetic material. Some worry that these technologies could be used to create "perfect" humans, leading to inequality or discrimination against people who are not genetically engineered.
Others worry that cloning could have unforeseen consequences, such as genetic disorders or shortened lifespans.In conclusion, the statement "La clonación y manipulación genética son dos áreas de la biotecnología que no han generado debate ético, social y político en todo el mundo" is false because cloning and genetic manipulation have generated significant ethical, social, and political debates around the world, especially when it comes to cloning humans or genetically modifying human embryos to create "designer babies."
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Encaustic is an ancient painting medium in which the pigments are suspended in.
Answers
Answer:
Beeswax is correct
Explanation:
:)
Can small changes in just one part of the climate system have a global impact? Find what you believe to be evidence of a small change in your regional climate system. Could this have a global impact? Support your opinion using specific examples and evidence from a local news article or video and post with your discussion.
Answers
Yes, small changes in just one part of the climate system can have a global impact. For example, the melting of Arctic sea ice has the potential to impact global weather patterns and ocean currents, as well as to release methane gas from the seafloor, which is a potent greenhouse gas.
One example of a small change in a regional climate system that could have a global impact is the melting of glaciers in the Himalayas. According to a news article from the BBC, glaciers in the region are melting at an unprecedented rate due to rising temperatures. This is having a number of impacts, including changes in water availability and increased flooding risk in nearby regions.
However, the melting of glaciers in the Himalayas is also causing sea levels to rise around the world, as the meltwater flows into the oceans. This can have significant impacts on low-lying coastal regions, including increased risk of flooding and erosion, as well as impacts on ecosystems and human communities.
Overall, small changes in regional climate systems can have far-reaching impacts on the global climate, highlighting the importance of addressing climate change at both the local and global levels.
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Of the following adaptations, which apply to life in rocky intertidal environments? Choose all that apply.
View Available Hint(s)
Some organisms can grow directly on top of other organisms.
Some organisms can survive for long periods of time out of water.
Having a soft, flexible body helps prevent organisms from drying out.
A thick exterior or exoskeleton helps protect creatures from being crushed.
Burrowing is one of the most common adaptations in rocky intertidal zones.
Answers
Rocky intertidal environments can be defined as the area that is found on the coast where tides rise and fall every day.
During low tide, rocky intertidal environments are exposed and become hot, dry, and saline. During high tide, it is submerged in seawater. In rocky intertidal environments, the following adaptations apply to life: Some organisms can survive for long periods of time out of water. Having a soft, flexible body helps prevent organisms from drying out. A thick exterior or exoskeleton helps protect creatures from being crushed. Burrowing is one of the most common adaptations in rocky intertidal zones. Organisms living in rocky intertidal environments have to be adapted to harsh living conditions due to the alternating conditions of water and air. The above options explain some of the adaptations required by these organisms in order to survive in rocky intertidal environments.
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