Answer:
Chloroplast
Explanation:
Chloroplast, structure within the cells of plants and green algae that is the site of photosynthesis, the process by which light energy is converted to chemical energy, resulting in the production of oxygen and energy-rich organic compounds. Photosynthetic cyanobacteria are free-living close relatives of chloroplasts; endosymbiotic theory posits that chloroplasts and mitochondria (energy-producing organelles in eukaryotic cells) are descended from such organisms.
Source: Britannica
Chloroplast organelle is affected by mosaic viruses
Lauren's body is unable when she has cystic fibrosis, right?Lauren suffers from cystic fibrosis. Her body is unable to regulate the movement of salt through her cells. When Lauren attempts to work out, she experiences wheezing and coughing. She gets breathing treatments that enable her to dance, sing, and swim.
It is frequently referred to as a fluid mosaic because the cell membrane is made up of so many different kinds of molecules, many of which float along the lipids. The lipid bilayer, which floats along the lipids because the cell is made up of so many different kinds of molecules, is the liquid portion.
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The hypothalamus can activate the sympathetic nervous system
O True
O False
Which statements about renewable and nonrenewable resources are true? Check all that apply.
There are two types of resources: renewable and nonrenewable. While a nonrenewable resource has a finite supply, a renewable resource can replenish itself at the rate of use.
Wind, timber, and other renewable resources are examples, while coal and natural gas are examples of nonrenewable resources.
Renewable resources are abundant while nonrenewable resources are scarce.
A nonrenewable resource is a natural substance that is not replenished at the rate at which it is consumed. While renewable sources are good for the environment, they also pollute.
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Which term is used to describe the different depth areas of the oceans?
Opedantic zones
O podiatric zones
pelagic zones
Oprehistoric zones
Answer:
pelagic zones
Explanation:
why do chemotherapy has its strongest side effects on the skin and the lining of the digestive tract?
I don't really know how to do this , does anyone know ?
Answer:
area A
Explanation:
area b floor is being protected by grass, shrubs and trees, holding the soil in place with their roots.
also, area a has sabd, which washes away in water Easter than soil.
What did Terry Hughes of the Australian Research Council Centre of Excellence for Coral Reef Studies mean when he said that climate change is not a future threat to corals?
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Corals are impervious to climate change because they have calcium carbonate exoskeletons.
Climate change has been damaging corals such as the Great Barrier Reef for the last 18 years.
Coral ecosystems are already heavily monitored as marine reserves and marine protected areas.
Corals recover very quickly from climate change extremes like the 2016 and 2017 bleaching events.
Climate change, pollution, illegal fishing, and outbreaks of crown-of-thorns starfish are the main dangers to this reef system. Extreme weather, oil spills, and marine debris are a few more causes that also have a big impact on the diminishing reefs.
What steps are taken to halt coral bleaching?By executing Clean Water Act programmes that safeguard water quality in watersheds and coastal regions of coral reef areas, the EPA safeguards coral reefs. The EPA also undertakes research into the reasons why coral reefs deteriorate and supports initiatives to monitor and evaluate the state of American coral reefs.
Numerous dangers exist for the reef. Climate change-exacerbated coral bleaching, poor water quality from land-based runoff, irresponsible fishing practices, and coastal development pose the most concerns.
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Read the two scenarios below. Identify each situation as phagocytosis or pinocytosis. Provide an explanation for
your answers.
A. A bacterial cell is engulfed by a white blood cell.
B. A protist cell absorbs dissolved food particles in the extracellular fluid.
A. The situation described is an example of phagocytosis, which is the process by which cells engulf large particles or other cells. In this case, a white blood cell is engulfing a bacterial cell to destroy it. Phagocytosis is an important mechanism of the immune system to protect the body against foreign invaders.
B. The situation described is an example of pinocytosis, which is the process by which cells absorb dissolved substances, such as nutrients, from the extracellular fluid. In this case, a protist cell is absorbing dissolved food particles to obtain nutrients for its metabolism. Pinocytosis is a common process in many types of cells to take up molecules from the environment.
With respect to climate forcing, which one of the following is a positive forcer?
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
carbon dioxide
sulfur dioxide
oxygen gas
helium
Answer:
the answer is sulfur dioxide
please help me fill out the table!
The equation for the light-dependent reactions of photosynthesis is:
2 H2O + 2 NADP+ + 3 ADP + 3 Pi + light → O2 + 2 NADPH + 3 ATP
The equation for the light-independent reactions of photosynthesis is:
3 CO2 + 9 ATP + 6 NADPH + 6 H+ → C3H6O3-phosphate + 9 ADP + 8 Pi + 6 NADP+
What are the light-dependent and the light-independent reactions of photosynthesis?The light-dependent reactions of photosynthesis occur in the thylakoid membranes of the chloroplasts and involve the absorption of light by pigments such as chlorophyll.
This light energy is used to split water molecules into oxygen gas (O2) and protons (H+), generating ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) in the process.
The equation for this process is:
2 H2O + 2 NADP+ + 3 ADP + 3 Pi + light → O2 + 2 NADPH + 3 ATP
The light-independent reactions of photosynthesis also known as the Calvin cycle, occur in the stroma of the chloroplasts and use the ATP and NADPH generated in the light-dependent reactions to fix carbon dioxide (CO2) into glucose.
The equation for this process is:
3 CO2 + 9 ATP + 6 NADPH + 6 H+ → C3H6O3-phosphate + 9 ADP + 8 Pi + 6 NADP+
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deletion, substitution or addition that alters the sequence of the stop codon
Answer:
A nonsense mutation refers to a base substitution in which the changed nucleotide transforms the codon into a stop codon. Such a change leads to a premature termination of translation, which can badly affect the formation of proteins.
What is the substitution code for stop codon?Scientists agree that there are three stop codons – also called nonsense codons or termination codons – in the human genetic code. These are TAG, TAA, and TGA (DNA) and UAG, UAA, and UGA (RNA).
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Based on the data in the figure, a student claimed that since 2007, the carrying capacity of wolves in Yellowstone National Park has been 100 wolves, and the maximum annual per capita growth rate of gray wolves is 0.6 wolves per wolf per year. Which of the following is closest to the calculated wolf population size in 2017 based on the student’s claim?
Maximum annual per capita growth rate of gray wolves is 0.6 wolves per wolf per year.126 wolves are closest to the calculated wolf population size in 2017 based on the student’s claim.
What is growth ?Growth is the process of increasing in size or number, either physically or figuratively. It is a fundamental part of any organism's life cycle and is necessary for the continuation of life. Growth is an essential part of development, as it allows for the adaptation of the organism to the environment and can be seen in both plants and animals. Growth is also essential for an organism's survival, as it allows them to gain the resources they need to survive. Growth can be seen both in terms of physical size, as in the case of a growing plant, or in terms of numbers, as in the case of a growing population.
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All of the following statements regarding the Kyoto Protocol are true EXCEPT:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
the treaty set different but specific targets of carbon dioxide reduction for various nations.
the treaty was replaced by the 2016 Paris Agreement.
the protocol was ratified by the United States.
no emission targets were set for developing countries.
Answer:
c
Explanation:
C) The protocol was ratified by the United States is not true.The Kyoto Protocol was an international agreement adopted in 1997 with the objective of reducing greenhouse gas emissions in order to combat global climate change.
The following statements about the Kyoto Protocol are true:
A) The treaty set different but specific targets of carbon dioxide reduction for various nations.
B) The treaty was replaced by the 2016 Paris Agreement.
D) No emission targets were set for developing countries.
However, the United States did not ratify the Kyoto Protocol, which was a major setback for the treaty's effectiveness.
Answer: 3rd option is not true
Explanation:
The United States did sign the Kyoto Protocol but it never ratified it, meaning it did not formally agree to be bound by its requirements. Therefore, the United States did not participate in the treaty's implementation.
Summers in Earth's Northern Hemisphere are warmest when:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
the North Pole points toward Polaris, the current north star.
axial precession matches the axial tilt.
axial precession matches the orbital eccentricity.
the North Pole points toward Vega.
None of the answer choices accurately describe when summers in Earth's Northern Hemisphere are the warmest.
What is Hotness?
In physics, "hotness" is not a term that is used. The concept that is usually referred to in relation to temperature is "thermal energy", which is the total kinetic energy of the particles that make up a substance. When the thermal energy of a substance increases, its temperature also increases, which we perceive as the substance becoming "hotter".
The warmest summers in the Northern Hemisphere occur when the hemisphere is tilted toward the sun and receives the most direct sunlight. This occurs during the summer solstice, which happens around June 20-22 each year. The axial tilt is responsible for the seasons, and the precession of the Earth's axis does not have a significant effect on the timing of the seasons.
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How would a medicine like Benadryl affect a person if the allergen was actually a dangerous pathogen?
Antihistamine Benadryl aids in the relief of allergy symptoms but has little immediate impact on infections. Benadryl won't work to treat an infection if the allergen is actually a harmful germ.
How do allergies respond to Benadryl?It works by halting the body's production of histamine, a substance that causes allergic reactions.. It is a safe and reliable drug when used as directed. Store brands, generics, and the brand name Benadryl are all used to advertise diphenhydramine.
Is Benadryl a dangerous drug?The moderate sedative effects of Benadryl can feel like intoxication when taken in higher quantities. However, taking more than 25 mg is extremely dangerous and is more likely to harm you than help you.
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John applies a small amount of liquid between his dog's shoulder blades each month. The liquid
helps prevent insects from bothering his dog, Lately, the liquid does not keep fleas off his dog.
What is the likely cause of this change?
A The fleas that survived exposure to the liquid once have produced offspring that are resistant to
the liquid
B. The weather conditions have changed. There are more fleas living in John's yard
C. The liquid has changed the dog's fur over time. Now the liquid is absorbed into the fur rather
than staying on the skin.
D. John gives his dog a bath after applying the liquid and the liquid is not able to work correctly.
Answer:
A. the fleas that survived exposure to the liquid once have produced offspring that are resistant to the liquid
Help please it’s important
The Chesapeake Bay is an estuary. It is the largest estuary in the United States, located on the East Coast and stretching from Maryland to Virginia. Option A
What is an estuary?An estuary is a partially enclosed body of water where freshwater from rivers and streams mixes with saltwater from the ocean, creating a unique ecosystem that is rich in biodiversity. The Chesapeake Bay receives freshwater input from several major rivers, including the Susquehanna, Potomac, and James Rivers, which mix with saltwater from the Atlantic Ocean.
The resulting brackish water environment supports a variety of plant and animal species, making the Chesapeake Bay an important ecological and economic resource.
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Do all plants manufacture their food
Answer: no
Explanation:green plants are the only living organisms that produce their own food.
A week bond between two hydrogen molecules;found between water molecules and nucleotides in DNA
Answer:The weak bond between two hydrogen atoms, which is commonly found between water molecules and nucleotides in DNA, is called a hydrogen bond.
Explanation:
Answer: Hydrogen Bond
Explanation:
The splanchnic nerves contain preganglionic axons of the sympathetic nervous system.
True or false
Answer:
True
Explanation:
The given statement "The splanchnic nerves contain preganglionic axons of the sympathetic nervous system" is true because these axons synapse with postganglionic neurons in ganglia located near or within the organs they innervate.
The splanchnic nerves are a group of nerves that originate in the thoracic and lumbar regions of the spinal cord and innervate the viscera. They are part of the sympathetic nervous system, which is responsible for the "fight-or-flight" response.
The preganglionic axons of the sympathetic nervous system are short axons that originate in the spinal cord and synapse with postganglionic neurons in ganglia located near or within the organs they innervate. The splanchnic nerves contain the preganglionic axons that innervate the viscera of the abdomen and pelvis.
The postganglionic axons of the sympathetic nervous system are longer axons that originate in the ganglia and innervate the organs they innervate. The postganglionic axons of the splanchnic nerves release the neurotransmitter norepinephrine, which activates the sympathetic receptors on the organs they innervate.
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Climate mitigation can be pursued using the _____ approach.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
precautionary
conservation
adaptation
wedge
Answer:
the answer is adaptation
A person with a severe case of asthma (constriction of the airways) would be helped with a sympatholytic drug.
© True
O False
Answer:
false
Explanation:
reduce blood pressure mainly by stimulating central α2‐adrenergic receptors in the brainstem centers, thereby reducing sympathetic nerve activity and neuronal release of norepinephrine to the heart and peripheral circulation.
Recently many of flordias citrus trees have been affected by a bacterial disease called citrus greening insects of a particular species that feed on citrus trees transmit the bacteria into the tree
Answer:
D
Explanation:
If you develop a tree that can resist bacteria and stay healthy you can eat it
( this is just my opinion but i believe this is correct)
Please answer Quickly!!!
Answer: decrease, increase
Explanation: Coral can live in acidic water, but is less healthy and dense
Aim of water pollution
1) to gather wastewater from homes, businesses, and other establishments; 2) to find a location to discharge the wastewater; 3) to remove water pollutants that would otherwise produce harmful effects; and (4) to recharge groundwater with wastewater.
The result of water contamination is what?Only a handful of the reasons and sources of water contamination are mentioned here. While lakes, bays, ponds, slow-moving rivers, and the seas have limited resilience to the impacts of water pollution, rivers and streams show some potential to rebound from the effects of particular contaminants.
Any human-caused contamination of water that lessens its value to people and other living things in the natural world is referred to as water pollution.
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True or false cells are the basic unit of life
Darwin's Theory of evolution suggests that fishes evolved into amphibians. If this statement
is assumed to be true, explain why fishes still exist on the planet.
Answer:
Darwin's theory of evolution does not suggest that one species directly evolves into another species. Instead, it proposes that species can evolve from common ancestors over a long period of time through a process of natural selection. Therefore, the fact that fishes still exist on the planet does not contradict Darwin's theory. Here are some possible reasons why:
Diversification: Fishes have diversified into many different species over time, each adapted to a particular environment and niche. Therefore, the fact that some fishes evolved into amphibians does not mean that all fishes disappeared.Environmental factors: The evolution of fishes into amphibians may have been driven by changes in the environment, such as the availability of water or the development of new predators. However, not all fish species would have been affected equally by these changes, and some may have continued to thrive in their existing habitats.Adaptation: Fishes have evolved many different adaptations that allow them to survive in various environments. Some fish species are well-adapted to living in freshwater, while others are adapted to saltwater or deep-sea environments. These adaptations have allowed fish species to survive and thrive in different ecosystems.Evolutionary time: The evolution of species takes place over a very long period of time, and it is not necessarily a linear or predictable process. Even if some fish species did evolve into amphibians, it is possible that other fish species continued to evolve and diversify in other ways, leading to the continued existence of fish on the planet.In conclusion, the fact that fishes still exist on the planet does not contradict Darwin's theory of evolution. Evolution is a complex and ongoing process, and the survival of different species depends on a variety of factors, including environmental conditions, adaptation, and diversification.
(Answer each separately) 1. What is happening to atoms in the process of nuclear fusion? Mass is being converted into what? 2. During this process, how is energy generated? 3. What is the reason that the sun neither expands nor contracts in nuclear fusion? 4. How has the light from the sun changed over time? Why has it changed?
Answer: I Hope This Helped :)
1. In the process of nuclear fusion, atoms are being combined to form a heavier nucleus. This process releases a large amount of energy and results in a slight decrease in the total mass of the nucleus. The mass that is lost in the fusion process is converted into energy, according to Einstein's famous equation E=mc^2, where E represents the energy released, m represents the mass that is lost, and c is the speed of light.
2. Energy is generated during nuclear fusion because the process involves the release of a large amount of energy in the form of photons (light particles) and subatomic particles, such as neutrons and alpha particles. This energy is released because the atomic nuclei are combining and forming a more stable, lower-energy nucleus.
3. The sun neither expands nor contracts in nuclear fusion because there is a delicate balance between the inward gravitational force and the outward pressure created by the energy released during fusion. As long as this balance is maintained, the sun will remain stable and not expand or contract significantly.
4. The light from the sun has changed over time because the nuclear fusion reactions that power the sun occur at different depths within the sun's core. As the sun ages and uses up its fuel, the fusion reactions move outward, which causes a change in the wavelengths of light that are emitted. This is why the sun's light has changed from being bluer in the past to being more yellowish-white in the present.
the comet that hit jupiter raised fiery plumes large enough to incinerate the ________
Answer:
The comet ventured too close to Jupiter's mighty gravitational pull two years ago and was pulled apart into a score of large fragments and thousands of small ones. As each fragment hits Jupiter's dense atmosphere, it is stopped as if it had hit a brick wall. In an instant, its initial speed of 130,000 miles per hour is reduced to zero, and practically all of its gigantic kinetic energy is converted to heat -- so much heat that a titanic explosion results. In the case of each of the largest fragments, this is equivalent to 250 million megatons of TNT. (The largest hydrogen bomb ever detonated produced a blast equivalent to about 58 megatons.)
Explanation:
8. In cocker spaniels, the following genotypes and phenotypes are found:
AABB = white, A_bb = red, aabb = lemon, AaB_ = black, aaB_ = liver, AABb = grey
a. A red female is mated with a liver-colored male, and one of the pups produced is lemon-colored.
What are the genotypes of the parents?
b. What proportion of these offspring would be expected to be black?
c. A black male is mated with a liver-colored female, and they produce the following pups:
3/8 black
1/8 red
3/8 liver-colored
1/8 lemon-colored
What are the genotypes of the two parents?
d. If two cocker spaniels of the genotypes AaBb x AABb are mated, and eight pups are born, what is the
most likely distribution of coat colors in that litter?
If two cocker spaniels of genotypes AaBb x AABb are mated, the possible gametes they can produce are AB, Ab, aB, and ab.
What is Genotype?
Genotype refers to the genetic makeup or genetic constitution of an organism, which consists of the specific alleles or versions of genes that an individual inherits from its parents.
a. The genotype of the red female is A_bb, where she has one dominant allele A for black coat color and one recessive allele b for red coat color.
b. If the red female (A_bb) and the liver-colored male (aaB_) produce a lemon-colored pup (aabb), it means that both parents must have passed on their recessive alleles to the pup.
c. The given proportions of the offspring suggest that the black male has the genotype AABb, and the liver-colored female has the genotype aaBb.
The most likely distribution of coat colors in the litter would depend on the frequency of each genotype in the parents' gametes and the laws of Mendelian inheritance.
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Which label points to the part of chloroplast where chlorophyll molecules are found?
A. 1
B. 2
C. 3
D. 4
Answer: A I think
Explanation: Sorry if wrong
Chlorophyll molecules are primarily located in thylakoid membranes within chloroplasts. Here, they capture light energy to perform photosynthesis.The correct option is A.
The label that points to the part of the chloroplast where chlorophyll molecules are found is A. 1. These molecules are located in the thylakoid membranes, specifically in the photosystem complexes.
However, within a chloroplast, chlorophyll molecules are primarily found in structures called thylakoids. Thylakoids are flattened sac-like membranes arranged in stacks (grana) inside chloroplasts. Chlorophyll molecules are integral components of the thylakoid membranes where they absorb light energy for photosynthesis. It captures light energy from the sun and uses it to help convert carbon dioxide and water into glucose and oxygen in the photosynthesis process.
Therefor the correct option is A.
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