#1 The water held back by a dam is an example of which type of energy?
(A) chemical energy
(B) mechanical energy
(C) kinetic energy
(D) potential energy
#2 A swinging pendulum demonstrates which type of energy?
(A) both potential and kinetic energy
(B) chemical energy
(C) only kinetic energy
(D) only potential energy
#3 How can you increase the period of a pendulum?
(A) by making the string longer
(B) by making the string shorter
(C) by taking away mass
(D) by adding mass
Answers
Answer:
1. Potential Energy
2. Both Potential and Kinetic Energy
3. by making the string longer
Related Questions
The diagram shown represents a cell that will undergo mitosis. Which diagram
best illustrates the nuclei of the daughter cells that result from normal mitosis of
the parent cell? *
Answers
Answer:
Bottom left square
Explanation:
Mitosis is a type of cell division that enables growth and repair of an organism.
Before mitosis, the DNA is replicated. Then, the parent cell divides to produce two daughter cells that are identical to the parent cell and to one another.
The cells in the bottom left square are identical to one another and to the parent cell. Therefore, this is the correct answer.
What molecules are
carbon atoms in
before the chemical
change?
Answers
what are the two biggest planets on earth
Answers
Answer:
️ ️
Explanation:
what tool is used to determine the precise location of radioactively labeled DNA
Answers
Which of the following foramen convey a branch of the trigeminal nerve (CN V)? A. Foramen lacerum B. Foramen rotundum C. Optic foramen D. Foramen spinosum
Answers
The foramen that conveys a branch of the trigeminal nerve (CN V) is Foramen rotundum. The correct option is B.
The trigeminal nerve, also known as cranial nerve V, is a mixed nerve responsible for sensory and motor functions of the face. It has three main branches: the ophthalmic nerve (V₁), the maxillary nerve (V₂), and the mandibular nerve (V₃).
The foramen rotundum is a bony opening located in the sphenoid bone of the skull. It serves as a passage for the maxillary nerve (V₂), which is one of the branches of the trigeminal nerve. The maxillary nerve supplies sensory innervation to the maxillary teeth, upper gum, palate, and other structures of the face.
In summary, the foramen rotundum conveys a branch of the trigeminal nerve (CN V), specifically the maxillary nerve (V₂), which is responsible for sensory innervation of the face. The other listed foramina (foramen lacerum, optic foramen, and foramen spinosum) do not transmit branches of the trigeminal nerve. Therefore, the correct option is B.
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1) Why is it important to add plants to an aquarium that has fish in it?
2) What three things are needed by plants in order to perform photosynthesis?
3) Plants produce their own food
during photosynthesis.
What is this food called?
Answers
Answer:
1) Adding plants to an aquarium that has fish in it is important for several reasons. Firstly, plants provide oxygen to the water through photosynthesis, which is essential for the survival of fish and other aquatic animals. Secondly, plants help to remove excess nutrients from the water, such as ammonia and nitrates, which can be harmful to fish in high concentrations. Thirdly, plants provide a natural source of food and shelter for fish, which can reduce stress and improve their overall health.
2) The three things needed by plants in order to perform photosynthesis are light, carbon dioxide (CO2), and water. During photosynthesis, plants use energy from sunlight to convert CO2 and water into oxygen and glucose (a type of sugar). This process is essential for the growth and survival of plants, as well as for the production of oxygen that is vital for the survival of many other organisms on Earth.
3) Plants produce their own food during photosynthesis, which is called glucose. Glucose is a type of sugar that provides energy for plant growth and development. Some of the glucose produced by plants is used immediately for energy, while the rest is stored as starch or other carbohydrates for later use.
A food chain is a simple way of showing the relationships between organisms in an ecosystem. What do we call a diagram that shows the complex feeding relationships between organisms in an ecosystem?
Answers
Answer:
a food web
Explanation:
a food web is a more complex version of the food chain
Answer:
food web
Explanation:
A food web is a more complicated version of a food chain
DNA sequences that prevent enhancers from acting on promoters located in adjacent domains are called
Answers
DNA sequences that prevent enhancers from acting on promoters located in adjacent domains are called insulators.
Insulators are DNA sequences that stop enhancers from interacting with promoters located in adjacent domains. They play a significant role in controlling gene expression, ensuring that each gene is expressed in the proper cells and at the proper time. They could function as boundaries between chromatin domains, preventing the spread of heterochromatin or euchromatin throughout the genome.
The most important feature of insulators is that they can define the boundaries of regulatory domains, and it has been proposed that they can serve as nucleation centers for the formation of regulatory complexes. Insulators, or boundary elements, have been found in both prokaryotic and eukaryotic organisms.
In addition, insulators may play a role in determining the spacing and orientation of genes in complex clusters and influencing long-range interactions between regulatory elements and chromatin.
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REPOST!!!
Hurry!!!Describe the events of each stage of mitosis. Describe and ILLUSTRATE
Answers
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Sure, I'd be happy to help!
Mitosis is the process of cell division that produces two identical daughter cells from a single parent cell. The process is divided into four main stages: prophase, metaphase, anaphase, and telophase. During each stage, specific events occur that ensure the proper separation of the duplicated chromosomes.
Prophase:
During prophase, the chromatin in the nucleus condenses and becomes visible as distinct chromosomes. The nuclear envelope breaks down, and the spindle apparatus, composed of microtubules, forms between the two centrosomes. The chromosomes begin to move toward the center of the cell, and the microtubules attach to the kinetochores on each chromosome.
Illustration of Prophase:
Link of picture unavailable
Metaphase:
During metaphase, the chromosomes line up along the metaphase plate, an imaginary line that runs through the center of the cell. The spindle fibers pull on the chromosomes to ensure they are lined up correctly. The centrosomes are positioned at opposite poles of the cell.
Illustration of Metaphase:
Link unavailable
Anaphase:
During anaphase, the sister chromatids are separated from each other by the spindle fibers and are pulled toward opposite poles of the cell. The spindle fibers not attached to chromatids elongate and push the poles of the cell apart, causing the cell to become elongated.
Illustration of Anaphase:
Link of picture
Telophase:
During telophase, the nuclear envelope reforms around each set of chromosomes at opposite poles of the cell. The chromosomes begin to uncoil and revert to their less condensed form, and the spindle apparatus is disassembled. The cell begins to prepare for cytokinesis, which is the process of dividing the cell into two daughter cells.
Illustration of Telophase:
Link of picture
Overall, these four stages ensure that the genetic material is distributed equally between the two daughter cells.
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You are an organic being, and as such, you are part of the Carbon cycle. Describe your role as part of this cycle
Answers
As an organic being, I am part of the Carbon cycle. By taking in oxygen, I produce carbon dioxide, which is released into the atmosphere. Plants take in this carbon dioxide and convert it into energy through the process of photosynthesis.
This energy can then be used to produce oxygen, which I breathe in and exhale as carbon dioxide, completing the cycle. Not only do I produce carbon dioxide, but I also consume organic matter, such as plants. When I consume these organic materials, their carbon is released back into the atmosphere through respiration.
This cycle helps maintain the balance of carbon dioxide in the atmosphere and provides a continuous supply of energy to sustain life. As part of the Carbon cycle, I also help to regulate the global climate, as carbon dioxide is a potent greenhouse gas. Without the Carbon cycle, I would not be able to survive.
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10. Renewable energy is energy from sources that
A. are constantly being formed.
B. will take years to deplete.
C. humans can manufacture.
D. were once living organisms.
Answers
Answer:
The answer is A because non renewable energy is energy that cannot be restored or takes a long time to be restored.
What are cell cycle regulators
Answers
Answer:
Cell cycle regulators are the cell cycle only when they are tight bound to CDKS.
Explanation:
To be fully active, the CDK/Cyclin complex must also be phosphorylated in specific locations. Like all kinases, CDKS are enzymes (kinases) that phosphorylate other proteins. Phosphorylation activates the protein by changing its shape.
Which cell is represented by the avocado's skin
Answers
Answer:
Cell membrane
Explanation:
As the moon moves straight due to inertia, it travels in orbit around the Earth due to _________.
A. free fall
B. the pull of Earth's gravity.
C. the pull of the Sun's gravity.
D. satellites in space.
PLS HURRY ITS DUE IN 19 MINTUES
Answers
Answer:
B. the pull of Earth's gravity
Explanation:
The pull of Earth's gravity on the moon is greater than the pull of the sun's gravity on it because of the distance.
Describe how invasive species affect ecosystems
Answers
Answer:
Invasive species also have the potential to disrupt vital ecosystem functions, such as water flow, nutrient cycling, fire systems, or soil composition. An example of this is the Tamarix species. It not only uses large amounts of water, it changes the soil chemistry, making it more saline.
Explanation:
Sexual interaction is the only way STDs can be transmitted. (9.2.9). Select one: a. True b. False
Answers
Answer:
No, it is not the only way,
hope that helps, have a great day
Which molecules are used for releasing energy in the cell
1. glucose, carbon dioxide and water
2glucose, oxygen and amino acids
3glucose and oxygen
4glucose and amino acids
Answers
Answer: glucose and Oxygen
Explanation: Glucose is converted to water and carbon dioxide in mitocondries and energy is released. Oxygen is needed to reaction.
Amino acids can be converted to energy but that is not primary purpose of amino acids.
100 POINTS!!!
1. After first exposure to an antigen, about how long does it take for antibodies to reach a detectable level?
2. What could explain the significant increase in antibodies to non-Lyme disease antigens (blue line)?
3. Lyme disease patients who are treated with antibiotics quickly usually do much better than those who are treated later. Why do you think this is the case?
4. Why doesn’t the Antibodies in Lyme Disease Antigens (orange line) decrease after the first immune response, compared to non-Lyme Disease Antigens (blue line)?
5. Professor Dr. Utpal Pal studied the Borrelia burgdorferi bacterium at the University of Maryland. Dr. Pal found that Lyme disease is caused by your immune system. When the body is infected with Lyme disease, it overreacts causing inflammation in the joints. Although antibiotic resistance has not been observed for B. burgdorferi, create an argument defending the control of antibiotic use to the public.
Answers
Answer:
After first exposure to an antigen, it can take about three weeks for antibodies to reach a detectable level. The body will react to disease by creating antibodies and testing their effectiveness against the unknown antigen.
Antibodies are the body's way of fighting off foreign threats. Also known as immunoglobulin, they detect and attack pathogenic bacteria and viruses. These antibodies detect a protein that is unique to the surface of the pathogen called the antigen.
At times, we can see an increase in antibodies for one disease, for example, Lyme disease, in the presence of non-Lyme disease antigens. This is often due to antigenic variation, which is a method used by pathogens to mask their respective antigens. There are also general use antibodies that will increase in reaction to any pathogen.
As with any illness, a patient who receives treatment sooner will fare better than those whose treatment is delayed. This is due to the fact that earlier treatment with antibiotics will allow the body to fight off the infection before the bacteria can reproduce further.
After the first immune response, antigen-specific antibodies will remain for some time to provide the body with "immunity" to the pathogen, while general-purpose antibodies will return to a base value.
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A period comprised of three weeks after the first exposure is required to detect antibodies.
What are immune responses?Immune responses refer to the reactions (e.g., inflammation) which undergo the human body after exposure to infections caused by pathogens such as bacteria or viruses.
Lyme disease is a disease generally caused by Borrelia burgdorferi bacteria.The significant increase in antibodies to non-Lyme disease antigens can be explained by antigenic variation, which is a natural evolutionary mechanism used by pathogens to infect an organism.Patients with Lyme disease who are treated with antibiotics quickly usually react much better than those who are treated later because antibiotics are more efficient to stop infection during the early stages (i.e., before uncontrolled pathogen reproduction).Antibodies in Lyme disease antigens do not decrease after the first immune response because this disease can be masked by the bacterial pathogen.The control of antibiotic use is fundamental to avoid the emergence of natural resistance, which is a natural evolutionary process caused after pathogen exposure.
In conclusion, a period comprised of three weeks after the first exposure is required to detect antibodies.
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Describe how natural selection can occur in a population.
Answers
Answer:
Natural selection occurs when individuals with certain genotypes are more likely than individuals with other genotypes to survive and reproduce, and thus to pass on their alleles to the next generation.
Explanation:
The antigens related to the abo blood group are located.
Answers
The antigens related to the abo blood group are located.
on the red blood cell membrane.#CarryOnLearning\( \mathfrak{WatanabeHaruto}\)
What gets trapped in the atmosphere by greenhouse gases?
sunlight
thermal energy
water vapor
methane gas
Answers
thermal energy gets trapped in atmosphere due to greenhouse gases
Las plantas transforman la luz del sol a través de unas células llamadas: a) Estomas. b) Cloroplastos. c) Raíces. d)Clorofila.
Answers
Respuesta:
La respuesta correcta es: b) Cloroplastos.
Explicación:
Los cloroplastos son organelas que se encuentran en las células vegetales y son responsables de realizar el proceso clave para la supervivencia de estos seres vivos: la fotosíntesis.
La fotosíntesis consiste en la transformación de sustancias inorgánicas a materia orgánica gracias a la energía proveniente de la luz solar. Esta materia orgánica será utilizada para la producción de los nutrientes requeridos por las células de la planta.
Los cloroplastos constan de una envoltura conformada por dos membranas y por unas vesículas llamadas tilacoides donde se encuentran las moléculas que participan en la transformación de energía lumínica a energía química que ocurre durante la fotosíntesis, por ejemplo la clorofila (que es un pigmento verde que le da a la planta su característico color).
A student did an experiment with ice. A beaker of ice was placed on a hot plate for 30 minutes and its temperature was recorded after every 5 minutes. The table below represents how the temperature and state of ice changes with time.
Time from start (in minutes) 0 5 10 15 20 25 30
State of matter in beaker ice water P water Q steam steam
Temperature of matter in beaker (in ° C) 0 0 50 80 100 100 142
What do the labels P and Q most likely represent?
both P and Q represent ice
both P and Q represent water
P represents ice and Q represents steam
P represents steam and Q represents ice
Answers
From the table, we can see that P and Q represent water. (Option B)
What does P and Q represent?We know that the liquid range of water is 0 - 100 degrees Celsius. Within this temperature range, water exists as a liquid substance.
Looking at the table we can see that the temperatures of P and Q are 50 and 100 degrees Celsius respectively hence both P and Q represent water.
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photosynthesis and cellular respiration both use electron transport chains. what is the source of electrons for photosynthesis and where do the electrons go at the end of aerobic cellular respiration?
Answers
Water serves as an electron source in the electron transport process of photosynthesis. The electron is extracted from water by using solar energy.
What is the electron transport chain's source of energy?
The electron transport chain uses the energy released by oxygen and reduced compound reactions such as cytochrome c and (indirectly) NADH and FADH2 to pump protons into the intermembranous space, producing the electrochemical gradient over the inner mitochondrial membrane.
In photosynthesis, water is split to produce electrons in the presence of sunlight, a process known as the photolysis of water. The electrons are finally transferred to NADP+ by the chloroplast electron transport chain, where they are reduced to NADPH.
Therefore, In aerobic respiration, electrons from NADH and FADH2 are transferred to oxygen by the mitochondrial electron transport chain to reduce oxygen in the water.
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a local conservation group releases 50 pine barrens tree frogs into a neighboring forest with a carrying capacity of 500 tree frogs. assume there are no other tree frogs in the forest, and this species of tree frogs follows a logistic growth model. after 2 years, there are 80 tree frogs in the forest. how long will it take (in t years) for there to be 160 tree frogs?
Answers
It will take 4 years for there to be 160 tree frogs in the forest.
According to the logistic growth model, the population of the pine barrens tree frogs in the neighboring forest will increase gradually until it reaches the carrying capacity of 500 tree frogs.
We are given that after 2 years, there are 80 tree frogs in the forest.
To find out how long it will take for there to be 160 tree frogs, we can set up a proportion using the initial and final populations:
(80 tree frogs / 2 years) = (160 tree frogs / t years)
To solve for t, we can cross multiply:
80t = 160 * 2
Simplifying the equation gives us:
80t = 320
Dividing both sides by 80, we find:
t = 320 / 80
t = 4
Therefore, it will take 4 years for there to be 160 tree frogs in the forest.
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Which of the following accurately describes a trade-off of using a reusable
cloth bag instead of a plastic bag?
A. You have to store the cloth bags and remember them when you
go shopping
B. Plastic bags are recyclable, whereas cloth bags are not.
C. You are saving the oil required to produce plastic bags.
D. You are giving up a little bit of convenience in exchange for
environmental friendliness.
HELP PLEASE
Answers
answer: the answer is d
What does the story of adam and eve speak about the use of intellect and free-will
Answers
an alternative version of a gene that determines a specific trait is called a(n)AlleleGeneLocusChromosomes
Answers
"The correct answer is Allele
An alternative version of a gene that determines a specific trait is called an allele. Alleles are different variations of the same gene that occur at the same location or locus on a chromosome.
Chromosomes are thread-like structures that contain genetic information in the form of genes, which are segments of DNA that code for specific proteins or traits. Each chromosome contains many genes, and each gene can have different versions or alleles.
For example, the gene for eye color has multiple alleles, including brown, blue, green, and hazel. These different alleles produce different versions of the protein that determines eye color, resulting in the wide range of eye colors seen in humans.
Alleles can be dominant or recessive, meaning that one allele may be expressed or ""seen"" in the phenotype (physical traits), while another allele may be hidden or not expressed. Dominant alleles are expressed even if only one copy is present, while recessive alleles require two copies to be expressed.
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Which of the following is NOT an example of a vascular plant?
O Redwood Trees
O Gerber Daisy
O Aloe Plant
O Mountain Moss
Answers
What color of star is our Sun?
O A. White
O B. Yellow
O C. Red
O D. Blue
SU