The image shows a plant cell containing chloroplasts.
nucleus
ribosome
mitochondrion
Golgi complex
cell wall
cell
membrane
-chloroplast
vacuole
What is the main function of chloroplasts in a plant cell?
Choose the correct answer.
They produce proteins and carbon dioxide.
They store water, oxygen, and carbon dioxide.
They transform light, water, and carbon dioxide into sugar and oxygen.
They protect cells from chemicals found in the surrounding environment.
Save and exit
Answers
Answer:
they transform light, water and CO2 into sugar and oxygen via photosynthesis
Explanation:
Related Questions
Redshifts were used as supporting evidence for the big bang theory.
Which describes redshifts? Check all that apply.
The light source and observer move closer together.
Observed light shifts to a longer wavelength.
They indicate receding galaxies.
Observed light shifts to a shorter wavelength.
The light source and observer move farther apart.
They indicate approaching galaxies.
Answers
The statements observed light shifts to a longer wavelength, indicating receding galaxies and the light source and observer moving farther apart are all issues that describe redshifts.
What are redshifts?Redshift is a term used in the physics discipline to describe a given increase in the emitted wavelength associated with less photon energy, which was described by observing galaxies that shifted to more extended wavelengths.
In conclusion, the statements observed light shifts to a longer wavelength, indicating receding galaxies and the light source and observer moving farther apart are all issues that describe redshifts.
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Soil generation and soil conservation are equally effective agricultural strategies.
Please select the best answer from the choices provided
OT
OF
Answers
Answer:
Your Answer is True. True
as lisa drove home, she was suddenly alerted to the sound of a blaring horn and realized she had drifted off to sleep. which nervous system division dominated when she was startled awake? question 25 options: sensory nervous system sympathetic nervous system parasympathetic nervous system somatic nervous system
Answers
She was shocked awake, according to the statement, and the sympathetic nervous system took over.
How does the sympathetic nervous system work?The best-known function of your sympathetic nervous system is how it reacts to risky or stressful circumstances. Your sympathetic nervous system becomes active in these circumstances to help you escape danger by increasing your heart rate, delivering more blood to your body's oxygen-depleted regions, and other actions.
What causes the sympathetic nervous system to act?The hypothalamus triggers the sympathetic nervous system by communicating with the adrenal glands via the autonomic nerves following an amygdala distress signal. Epinephrine, often known as adrenaline, is released into the bloodstream by these glands as a response.
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most of the body is made up of
a. vitamins and minerals
b. protein
c. carbs
d. water
e. fat
Answers
Answer:
D.) Water
Explanation:
The majority of the human body (roughly 60%) is composed of water.
Is crick and Watson a type of genetic test
Answers
No, "Crick and Watson" is not a type of genetic test. Crick and Watson refer to James D. Watson and Francis Crick, who were scientists involved in the discovery of the structure of DNA. They proposed the double-helix structure of DNA in 1953, which provided the foundation for understanding genetic information and its role in heredity.
Genetic tests, on the other hand, are laboratory tests that analyze an individual's DNA or genes to provide information about their genetic makeup, potential genetic disorders, or predispositions to certain conditions.
These tests can be used for various purposes, such as diagnosing genetic disorders, predicting the risk of developing certain diseases, determining carrier status for genetic conditions, or providing ancestry and genealogical information.
While Crick and Watson made significant contributions to the field of genetics, they are not directly associated with genetic testing. Genetic tests are based on scientific advancements and technologies developed after their groundbreaking discovery of the DNA structure.
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How would you explain the key concepts for the CWA in less than two minutes?
Answers
Answer:
Explanation:
vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.
Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.
Navigable Waters of the United States For the purposes of the Clean Water Act, the term "navigable waters" includes:
all waters used in commerce, including groundwater;
all interstate waters including wetlands, mudflats, and sand-flats; and
all other waters such as lakes, rivers, streams, wetlands and sloughs.
EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters." The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect. In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.
Additional executive orders were issued 2015 in 2019. Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.
Could the requirement for one or more NPDES Discharge Permit apply to my campus?
If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.
Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.
Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.
What do I have to do related to NPDES Discharge Permits?
Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.
French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.
Details of NPDES
D
Question 2
Which statement below is FALSE regarding primary research articles?
o They test or measure something
O They review and analyze studies made by someone other than the author(s)
O They ask a research question or state a hypothesis
Answers
Answer:
They test or measure something.
Explanation:
Primary research articles report on research that has been completed. Therefore, a primary research article will review and analyze studies, and will state the research question and hypotheses of the studies presented. A primary research article does not test or measure anything, but will report on studies that do.
1. Predict: How do you expect the spread of a foodborne disease to be similar to and different
from the spread of a person-to-person disease?
PLEASE ANSWER
Answers
Answer and Explanation:
The transmission of diseases through food and through people to people, are similar because both are caused by human contact with infectious parasitic agents such as bacteria and viruses. However, it is possible to notice some differences between these two types of transmissions.
Transmission of disease through food occurs when an individual eats contaminated food or drinks contaminated liquid. This contamination occurs due to the lack of hygiene of the handlers and storage problems, which can allow microorganisms, mostly bacteria, to grow in the food. Thus, when the contaminated food is ingested, the microorganisms will release toxins in the stomach that will cause disease. In the case of water, contamination can also happen due to the lack of basic sanitation and the incorrect dumping of garbage and human waste.
Diseases transmitted from person to person can occur in many different ways. One of the best known ways is through the contact of a healthy person with salivary goths or other body fluids of a person with the disease. However, this transmission can also occur through the contact of a healthy individual with the feces of a sick individual and even with physical contact with a sick individual.
What are common hazards in risk assesment?
Answers
2. Name the sympathetic ganglia in which the preganglionic and postganglionic neurons synapse.
Answers
Answer:
The paravertebral ganglia is the sympathetic ganglia where the pre-ganglionic and post-ganglionic neurons synapse.
Explanation:
What features of integrated pest management make it a good approach to preserving ecosystems?
Answers
Answer:
Allowing a small but controlled portion of a pest population to remain does less damage to ecosystems, soils, water, and air. Another feature of IPM would be making a habitat more complex, such as mazes, so it can slow the spread of parasites. No-till or low-till agriculture is another feature of IPM because this helps natural enemies of some pests to build up in the soil, whereas plowing destroys the habitats of these enemies.
Explanation:
Edgen 2020 plus I got a 100 when I typed this out.
Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)
Answers
Answer:
Explanation:
To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."
i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:
Y Y
y Yy Yy
y YY YY
ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.
The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).
Question 2:
To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.
If your toe points towards the ground, which muscle contracts?
Answers
Answer:
calf
Explanation:
the tibialis anterior muscle extends to allow the toe to point down, therefore the calf contracts
5. Differentiate between:
a. Scientific study and general study
Answers
curly hair is inherited in an autosomal dominant fashion. attached earlobes are autosomal recessive. a man and a woman who are both heterozygous for both traits marry. answer a and b using: h/h for hair and e/e for ear lobes. a. Assume these traits exist on separate chromosomes and exhibit independent assortment. what is the probability this couple will have a child with straight hair and unattached ear lobes? b. Assume thesetraits are linked on the same autosomal chromosome. the dad alleles are linked: H---e and h---E. The mom's alleles are linked: H---E and h---e. What is the probability this couple will have a child with straight hair and unattached ear lobes assuming no crossover event occurred?
Answers
If these traits exist on separate chromosomes and exhibit independent assortment, the probability that this couple will have a child with straight hair and unattached ear lobes is 1/4. If these traits are linked on the same autosomal chromosome and there is no crossover event, the probability that this couple will have a child with straight hair and unattached earlobes is 1/2.
when traits exist on separate chromosomes and exhibit independent assortment, the probability that this couple will have a child with straight hair and unattached ear lobes is 1/4. This is because each trait has two possible genotypes (H or h for hair, and E or e for earlobes), and there are four possible combinations of these genotypes: HHEE, HhEE, HhEe, and Hhee. Only one of these combinations (HhEe) results in straight hair and unattached earlobes. Therefore, the probability of having a child with these traits is 1/4. when these traits are linked on the same autosomal chromosome and there is no crossover event, the probability that this couple will have a child with straight hair and unattached earlobes is 1/2. This is because each parent has two possible alleles that they can pass on to their child: H---e and h---E for the father, and H---E and h---e for the mother. When these alleles are combined, there are four possible combinations: H---E, h---E, H---e, and h---e. Only two of these combinations (H---e and h---E) result in straight hair and unattached earlobes. Therefore, the probability of having a child with these traits is 1/2.
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Question 8(Multiple Choice Worth 3 points)
(04.01 MC)
Starting with the European settlers, humans have introduced earthworms from Europe and Asia into North American forests. These introductions continue through the transport of soil that contains non-native earthworms, such as during construction and through the release of non-native earthworms used for fishing. The effects of non-native earthworms are especially large in forests that did not have any native earthworms. For example, forests of the Great Lakes region did not previously have earthworms until humans introduced them. When non-native earthworms are introduced, the thick layer of leaves, known as leaf litter, covering the ground disappears quickly, thereby altering biogeochemical cycles.
What is a possible negative consequence of introducing the non-native earthworms to forests in the Great Lake regions?
PLease hurry
The earthworms reduce the resources available to other animals that eat dead plant matter.
The earthworm decreases the energy flow from one tropic level to the next.
The earthworms provide an additional food source for primary consumers.
The earthworms burrow, which reduces the nutrients, flow of air, and water underground.
Answers
Answer:
The earthworms reduce the resources available to other animals that eat dead plant matter.
Explanation:
The introduction of non-native earthworms in the Great Lakes region can have negative consequences on the ecosystem, including reducing the leaf litter and other organic matter in the soil, which is a main food resource for many species of animals and invertebrates, causing a decline in the population of those species. I apologize for any confusion my previous response may have caused.
biology home work 8 questions
Answers
Simple diffusion and Facilitated diffusion are the two primary categories of diffusion.
Simple diffusionAn action where the substance passes across a semipermeable barrier or solution without the aid of transport proteins. For instance, bacteria use simple diffusion to transport minute nutrients, water, and oxygen into the cytoplasm.Facilitated diffusionFacilitated diffusion is the passive transfer of molecules from the area of higher concentration to the area of lower concentration across the cell membrane using a carrier molecule.
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r Cycle
4
Which of the following stages of the water cycle is most likely to be occurring on a clear, sunny, hot day?
OA. evaporation
OB. precipitation
OC. condensation
OD. surface runoff
Reset
Submit
Answers
Evaporation occurs when water changes from a liquid to a gas (water vapor) and enters the atmosphere. On a clear, sunny, hot day, the sun's heat causes water on the surface of bodies of water, such as oceans, lakes, and rivers, to evaporate and enter the atmosphere. This process is also called solar radiation because it is driven by the sun's energy.
During evaporation, water molecules absorb energy from the sun, which causes them to move more quickly and break free of their bonds with other water molecules. As the water molecules gain enough energy, they escape into the atmosphere as water vapor. Once in the atmosphere, water vapor can travel long distances and participate in other stages of the water cycle, such as condensation and precipitation.
Overall, a clear, sunny, hot day is ideal for evaporation to occur because it provides the heat needed to drive the evaporation process.
How would a mutation increase genetic variation?
Answers
Answer:
DNA mutation causes genetic variation by altering the genes of individuals in a population. Gene flow leads to genetic variation as new individuals with different gene combinations migrate into a population.
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism’s DNA that create diversity within a population by introducing new alleles.
Drag the tiles to the correct boxes to complete the pairs.
Match each step of the scientific method with its description. see image ...........................................
Answers
Making observations: Bread, when kept in the open for a long time, shows the presence of mold
Asking questions: What causes mold growth on bread?
Constructing hypotheses: Changes in temperature may affect the growth of mold on bread
Testing hypothesis: Keep the bread in different locations, changing the temperature at each location
Result analysis and conclusion: Increased temperature leads to mold growth on bread
Result communication: Make a presentation of the data and explain it to the class.
Scientific methodThe scientific method is a rational order of steps through which scientific knowledge is obtained. The steps are:
Making observationsAsking questionsConstructing hypothesesTesting hypothesisResult analysis and conclusionResult communicationObservations have to do with making perceptions about events. Next is asking questions about why those events are the way they are.
Guesses are made to answer the questions raised. This represents the hypothesis stage.
Next is to test the correctness of the hypothesis using suitable experiments.
Results from the experiment are analyzed using relevant statistical analysis and conclusions are made from there.
The outcome of the whole procedure is then communicated to the scientific world.
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What happens to urchins if the oxygen percent concentration drops too low for an extended period of time?
Answers
Answer:
Since sea urchins are picky, they are used as indicator organisms in public aquariums to determine if the system is functioning properly. This is because they are very "picky" about water quality. If the water is contaminated, the sea urchins will be the first to show signs of stress, spines laying down or falling off. Do use an aquarium filter and do clean up the day after feeding. Any metal exposed to the seawater will corrode and poison the tank. A dying sea urchin will often spawn out and rot out, causing the others in the tank to spawn and die as welll.
Explanation:
Few species could exist without oxygen. Both you and the Purple Sea Urchin would perish without oxygen. As a result, the respiratory system is necessary for most forms of life.
What is respiratory system?Respiratory system is defined as your body's organs and other breathing-related elements, which are used to exchange oxygen and carbon dioxide during breathing. The network of organs and tissues that aids in breathing is known as the respiratory system. The respiratory system also includes the muscles that propel your lungs.
Because sea urchins are fussy, they are utilized in public aquariums as indicator species to check whether the system is working properly. This is a result of their extreme "pickiness" about water quality. Sea urchins will be the first to exhibit indications of stress, such as spines laying down or falling off, if the water is contaminated. A dying sea urchin will frequently spawn out and decay, which will cause the other sea urchins in the tank to do the same.
Thus, few species could exist without oxygen. Both you and the Purple Sea Urchin would perish without oxygen. As a result, the respiratory system is necessary for most forms of life.
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I need help on organic compounds, please. This is 9th grade biology 1.
Answers
2 Carbohydrates. CHO. Carbohydrates contains lactose, glucose. Carbohydrates provides energy but does not serve as long term.
3. Lipids (CHO). Is hydrophobic. Stores energy into long term.
What characteristic was used in this mission to determine a banana's relationship to other the plants?
Answers
The characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics.
What is morphology?
Morphology is the study of the form and structure of living organisms, including their physical and anatomical features. In biology, morphology is used to describe the appearance, shape, and size of different parts of an organism, such as its organs, tissues, cells, and even its molecules. This includes the study of external and internal structures, as well as their function, development, and evolution. Morphological characteristics are often used in the classification and identification of different species, as they can provide important clues about an organism's evolutionary history, ecological niche, and relationship to other organisms.
We assume you are referring to the scientific classification of bananas in the plant kingdom. In this case, the characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics. Bananas belong to the genus Musa, which is part of the family Musaceae.
The characteristics used to classify plants into different taxonomic groups include their structural features, such as their leaves, stems, flowers, and fruit, as well as their genetic and evolutionary relationships. These characteristics are used to group plants into increasingly broader taxonomic categories, from species to genus, family, order, class, phylum, and kingdom.
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El Ninos tend to result in cooler,wetter conditions across Texas.Which is likely to occur in Texas during El Ninos
Answers
El niño causes a drop in temperatures and increases in rainfall across Texas.
What is El niño?The unusual warming up of the surface of the water in the eastern tropical region of the Pacific ocean is termed El niño. El niño is a phase of the phenomenon called the El niño Southern Oscillation (ENSO).
El niño is the warmer phase of this phenomenon. The cool phase of the ENSO phenomenon is called the La niña. It results in the cooling of the regions of the water's surface.
El niño impacts the currents of the oceans starting from Australia to Southern America. It is an irregular event and can happen once from two to seven years.
Therefore, in texas, it results in a drop in temperatures and increases in rainfall.
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describe how and where carbondioxide enters the leafe?
Answers
Answer:Carbon dioxide cannot pass through the protective waxy layer covering the leaf (cuticle), but it can enter the leaf through an opening (the stoma; plural = stomata; Greek for hole) flanked by two guard cells. Likewise, oxygen produced during photosynthesis can only pass out of the leaf through the opened stomata.
Explanation:
After buying a new house by the lake, a family wanted a better view of the water so they could watch the sailboats. They hired a company to cut down the small trees and shrubs that were blocking the view.
Which type of water pollution is most likely
1 . Nutrient
2.sediment
3.toxic
4. Bacterial
Answers
The water pollution that is most likely to occur is Nutrient pollution
Pollution can be defined as the addition of materials or energy (pollutants) to the environment that damages it, making it undesirable or unfit for life. There are different types of pollution which includes:
--> Air pollution
--> Radiation pollution
--> soil pollution and
--> water pollution.
WATER POLLUTION is defined as the type of pollution that occurs when pollutants are being released into water bodies such as streams, lakes, ocean, beaches making it unsafe to use for both human and aquatic life activities. Depending on the type of pollutants, there are also different types of water pollution, these include:
chemical pollution Groundwater pollutionsediment pollutionmicrobiological pollutionnutrient pollutionsurface water pollution and Oxygen-depletion pollution.NUTRIENT pollution occurs when there is EXCESS of it in the water bodies through organic fertilizer or compost manure from the leaves of the cut down trees and shrubs. When nitrates from the agricultural waste gets into the water body(lake) it can cause a drastic increase in aquatic plant growth, especially algal growth. This excessive growth can lead to a decrease in oxygen level of water they by affecting the aquatic life of the lake.
Therefore the CORRECT OPTION is A Nutrient pollution.
Option B is wrong because sediment pollution is a type that involves loose sand, clay, silt, and other soil particles that are carried from a site by runoff water not from cut down trees.
Option C is wrong because toxic or chemical pollution is caused by chemicals from industrial wastes.
Option D is wrong because it is caused by natural existing bacteria in the water bodies and are capable of causing disease when ingested. Example Vibro cholera bacteria.
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The chlorine atom gains electrons to become a chloride
O isomer
O cation
O isotope
O anion
Answers
Answer:
Anion
Explanation:
Anions are formed when an atom gains electrons, giving it a negative charge.
So, if the chlorine atom gained an electron, it will have a negative charge.
This means the atom will become a chloride anion.
a population of finch birds with medium sized beaks colonizes an island with plants producing medium and large sized seeds. After a disease wipes out all the plants with medium sized seeds , what is most likely to happen
Answers
Answer:
Hi, when an organism start to begin new habit for finding food, that organism get specialized/new organ later according to their new food finding habit. So beak of Finch of medium sized beaks grow larger day by day according to their food of larger sized seeds, which we can say evolution for larger beak of Finch according to that adaptive behaviour of eating, that's all.
Thanks for reading.
khái niệm, tác dụng ,cơ chế tác dụng của vi khuẩn sinh acid lactic
Answers
The concept, effect, mechanism of action of lactic acid bacteria
Does the pharynx of human respiratory system have cartilage and epithelium?
Answers
Answer:
There is no cartilage but there is epithelium
Explanation:
The pharynx of the human respiratory system does not contain cartilage.
The pharynx, part of the human respiratory system, is a muscular tube that connects the nasal cavity and mouth to the larynx and esophagus. It serves as a passage for air and food. The gorge is made up of several regions, each with its own distinctive features.
The nasopharynx, the top part of the throat, contains no cartilage. Instead, it is lined with pseudostratified ciliated epithelium.This special epithelium helps to trap and transport mucus along with any particles or pathogens in the digestive system for elimination.
These regions also lack cartilage but are lined with stratified squamous epithelium. This type of epithelium provides protection from mechanical stress and potential abrasion caused by the passage of food and other substances down the pharynx.
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