Answer: Pigment chlorophyll
Explanation: Chloroplasts are green because they contain a green pigment called chlorophyll in their thylakoid membranes.
In a bog or swamp, which tropical level usually has the highest biomass A.tertiaryB.producerC.primary consumerD.scavenger this is for k12
Answer:I do K12 too are you in sixth grade if so what’s your name we might be in the same class connects
Explanation:
The tropical level that usually has the highest biomass is the producers. That is option B.
In an ecosystem such as the swamps, energy and nutrients are transferred step by step among organisms along a feeding pathway.
The steps along a feeding pathway is known as the tropical level.
A biomass on the other hand takes into account both the size and the number of individual organisms found in each tropical level in a feeding pathway.
Producer are the photosynthetic organisms that manufacture their own food by converting light energy from sun into chemical energy. They occupy tropic level 1.Primary consumers feed on the producers. They occupy tropic level 2Tertiary consumers feed on primary consumer. They occupy tropic level 3.And the higher the tropical level the lower the biomass while the lower the tropical level, the higher the biomass.
Therefore, the tropical level that usually has the highest biomass is the producers.
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An apple is cut into slices. Half of the slices are sprayed with lemon juice. All slices are stored in a sealed plastic bag. After 4 days, they are observed to see how brown they turned.
What’s the independent and dependent variable?
Answer: Lemon juice- Independent variable
Intensity of brown color color of apple -Dependent variable
Explanation:
Independent variable can be defined as the factors which the experimenter can control and the the dependent variable depends on the independent variable.
Here, the experiment is to test the effect of lemon juice on the color intensity of apple( basically the brown color).
The color change is based on whether lemon juice is sprayed on the half part or not and it is kept for 4 days. The color change is then observed.
Based on this the hypothesis is accepted or rejected.
The experiment's independent variable is lemon juice presence on apple slices, testing its impact on browning (dependent variable) after 4 days, observing if acidity reduces enzymatic browning.
In this experiment, the independent variable is the presence of lemon juice on the apple slices. It is manipulated by spraying half of the slices with lemon juice and leaving the other half untreated. The dependent variable is the degree of browning observed on the apple slices after 4 days of storage in a sealed plastic bag. The degree of browning is a result of the interaction between the apple's natural enzymes and the oxygen in the air.
By introducing the lemon juice, which contains antioxidants like ascorbic acid, the experiment aims to test whether the acidic environment created by the juice can slow down the browning process by inhibiting the enzymatic reaction. The independent variable (lemon juice) is hypothesized to affect the dependent variable (degree of browning).
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Which scientist discovered cells by observing cork with a homemade microscope? Carolus Linnaeus Rudolf Virchow Robert Hook Theodor Schwann
Answer:
C. Robert Hook
Explanation:
Robert Hooke was the scientist who first studied the cork cells under a homemade microscope. It was observed that the cells are very tiny units that are nor visible to our naked eyes.
The cell wall was clearly seen under the microscope and it appeared as small rooms and thus Robert Hooke named it as cell. The cork cell that was studied was taken from the cork cambium of a tree. The cells were dead.
Answer:
Robert Hooke
Explanation:
discovered cells by observing Cork with a homemade microscope
Which of these describes two broad groups of interactions environmental scientists study?
A How matter undergoes changes and how we interact with the animals we study
B How we obtain food and how the Moon affects the earth
C How humans come together to organize governments and how laws are maintained
D How we use natural resources and how our actions alter the environment
Answer: I believe the answer is a. sorry if I am wrong.
D. How we use natural resources and how our actions alter the environment.
Explanation:The Environmental studies is the branch of science which deals and studies about the interaction of human being and the other biotic components present in the earth which is collectively called as nature.
The environmental Scientist study about how the available natural resource is utilized by the human race and the advantages and disadvantages caused to the environment due to it.
For example, the usage of available fossil fuels such as coal and petroleum is studied and their usage consequences are updated by them.
Which is an example of radiation?
A -snowman
B- CampFire
C-Cooking
D- Walking
An example of radiation is Campfire, so the answer is B- CampFire.
What is radiation?The emission of energy as waves or particles is called radiation. Radiation can be classified into two main types: ionizing radiation and non-ionizing radiation. The campfire emits energy in the form of heat and light. Heat is a form of infrared radiation, which is a type of non-ionizing radiation.
Light is a form of electromagnetic radiation, which can be either ionizing or non-ionizing. Examples of ionizing radiation include alpha particles, beta particles, gamma rays, and X-rays. Ionizing radiation can be harmful to living cells and can increase the risk of cancer.
Therefore, the correct answer is B- CampFire.
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What is free nitrogen?
A. nitrogen that is ready for plants to use
B. nitrogen that has been fixed by bacteria
C. nitrogen that cannot be used by organisms
D. nitrogen that is returned to the soil by decomposers
Answer:
Nitrogen thet cannot be used by organisms. C.
Explanation:
Free nitrogen is simply molecular nitrogen (N2). Nitrogen, in its molecular form, consists of two nitrogen atoms bound together with a tripple bond. Because it is very stable, N2 is typically nonreactive, and takes a lot of energy to break them apart. Among these are the amino acids necessary for life to begin and which are the building blocks DNA is made from. Basically, any nitrogen that is in an organic compound is considered “fixed” nitrogen and N2 is considered to be “free” nitrogen
Free nitrogen refers to diatomic nitrogen found in the atmosphere. It's not directly usable by most organisms as they lack the necessary enzymes to convert it into ammonia. Processes like nitrogen fixation by certain bacteria can convert it into a usable form and it can be returned to the atmosphere through denitrification.
Explanation:Free nitrogen, also known as atmospheric nitrogen, is nitrogen in its diatomic form (N2) found in the atmosphere. It is the largest pool of nitrogen in terrestrial ecosystems. However, this nitrogen is not readily available for use by most organisms as they lack the necessary enzymes to convert it into a usable form.
Nitrogen fixation is a biological process whereby certain prokaryotes, such as soil bacteria or cyanobacteria, convert atmospheric nitrogen into ammonia (NH3). This fixation contributes to around 65% of the nitrogen used in agriculture. For example, soil bacteria have a symbiotic relationship with leguminous plants, engaging in nitrogen fixation to convert free nitrogen into a form that is accessible to the plant.
Additionally, nitrogen can be converted back into its atmospheric form by soil bacteria in a process called denitrification where nitrates are converted into nitrogen gas, allowing it to re-enter the atmosphere.
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During the process of melting from a solid to a liquid, what happens to the temperature of the substance?
A. It stays constant.
B.it increases
C.it decreases
D. It increases and then decreases.
Answer: It is A
Explanation: Melting occurs when a solid is heated and turns to liquid. The particles in a solid gain enough energy to overcome the bonding forces holding them firmly in place. This is called freezing and occurs at the same temperature as melting. Hence, the melting point and freezing point of a substance are the same temperature.
Answer:
B. it increase
Explanation:
it increase cause if you put more temperature, the molecules would move more quickly leading to solid become a liquid.
i hope its help
Which is the path of sperm from the testes to the urethra?
Answer:
The path of the sperm from the testes to the 'urethra' is that the epididymis receives the 'immature sperm' from the 'testis' and stores it. During the process of ejaculation, the sperm is forcefully pushed into the 'deferent duct'; from there it enters the “spermatic cord into the pelvic cavity” then to the prostrate
Explanation:
Answer: the epididymis
Explanation:
the epididymis receives the 'immature sperm' from the 'testis' and stores it. During the process of ejaculation, the sperm is forcefully pushed into the 'deferent duct'; from there it enters the “spermatic cord into the pelvic cavity” then to the prostrate.
What molecule or gas is not necessary for plants and is then released?
Before using a recovery unit to remove a charge what steps should be taken
Answer:
there are 4 steps that should be taken before using a recovery unit to remove a charge
Explanation:
A. The refrigerant should be tested for acid.
B. The recovery unit should be purged with nitrogen.
C. The recovery unit oil should be changed and recovery cylinder evacuated.
D. Service valve positions and recovery oil level should be checked, when applicable
Before using a recovery unit to remove a charge, the steps that should be taken include:
Acid testing the refrigerant.Purging the recovery unit with nitrogen.Changing the oil in the recovery unit.Checking the service valve position and the recovery oil.It should be noted that when using a recovery unit, it's important for the technician to check the position of the service valve first. This is important to prevent the venting of the refrigerant.
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Why are proteins considered organic molecules?
A. They contain many nitrogen atoms.
B. They contain many carbon atoms.
C. They are not used by living things.
D. They are very small.
The answer is option B "They contain many carbon atoms." Proteins are considered organic molecules because they are made up of carbon atoms. Proteins give your body energy and allows your body to run the way it does. Proteins also aren't considered organic molecules because they are small, because they are not used by living things, or because they contain nitrogen.
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Gerald performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. The data from his experiment are shown in the table below. Amount of light (hours) Number of plants Average volume of oxygen produced (mL) 1 4 0.50 6 4 2.0 10 4 5.0 Which format should he use to present his data? bar graph chart line graph pie graph
Answer: Bar Graph
Explanation: I had this question on my quiz, and wanted to just share the answer with you. It is without a doubt one hundred percent correct.
Bar graph should he use to present his data. So, the correct option is A.
What is Bar graph?A bar chart or bar graph is defined as a chart or graph that presents categorical data with rectangular bars in which the height or length is proportional to the values they represent where the bars are arranged vertically or horizontally. Vertical bar charts are also called column charts.
These make it easy to compare sets of data between different groups at a glance by representing ranges on one axis and discrete values on the other. The goal is to show the relationship between two axes where bar charts can also show large changes in data over time.
In this question, Gerald uses bar graph to represent its data.
Thus, the correct option is A.
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what function do these organ systems in the fish perform together
Final answer:
The circulatory, digestive, and nervous systems in fish work together to provide essential functions like nutrient distribution, waste removal, and sensory perception, which are crucial for the fish's survival and homeostasis.
Explanation:
Fish possess various organ systems that perform vital functions necessary for survival. The circulatory system, comprising a two-chambered heart, works to circulate blood throughout the fish's body, thereby providing oxygen and nutrients to cells and removing waste products, like carbon dioxide. The digestive system includes organs and glands that work together to process food, breaking it down so that the absorbed nutrients can fuel cellular processes. Jawed fish have an additional adaptation in the form of jaws and teeth that allow them to consume larger prey by grinding it up before it passes through the rest of the digestive tract.
In addition to these systems, fish also have a centralized nervous system with a brain, despite being small compared to other vertebrates, and highly developed sense organs that enable them to see, hear, feel, smell, taste, and in some cases, sense the electricity emitted by other animals. This specialized sensory equipment helps fish locate prey and navigate their aquatic environments. Together, these organ systems work in concert to maintain the overall functionality and homeostasis of the fish organism. Each system is interdependent, often relying on the others to perform its role effectively.
Overall, the interaction between these organ systems enables fish, as with other multicellular organisms, to develop beyond single-cellular life forms, permitting a greater degree of specialization and efficiency in various physiological processes.
As the mass of a star increases how do you think it’s luminosity might change?
Answer:
As the size of a star increases, luminosity increases. If you think about it, a larger star has more surface area. That increased surface area allows more light and energy to be given off. Temperature also affects a star's luminosity.
Explanation:
A star is a gas ball that is luminous that can be hydrogen and helium, and stay in position by its own gravity. As the mass of star increases, the luminosity of it also increases.
What is the luminosity of star?Luminosity is the total amount of energy emitted by a star or other celestial object per second.
The power output of a star along with the wavelengths is called its bolometric luminosity.
The increased surface area of star promotes more light and energy formation. It can also be affected by temperature.
Thus, as the mass of star increases, the luminosity of it also increases.
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Select the correct answer from each drop-down menu.
The genetic information that is passed from a parent to its offspring is found in molecules. Segments of these molecules, known as genes, code for the production of , which cause specific to be expressed.
The genetic information passed from parent to offspring is found in genes, which are segments of the molecule DNA. Genes code for the production of proteins that cause specific traits to be expressed.
Explanation:The genetic information that is passed from a parent to its offspring is found in molecules called genes. These genes are segments of a molecule known as deoxyribonucleic acid (DNA). The genes code for the production of proteins, which cause specific traits to be expressed.
A boy is walking down the road with a doctor. While
the boy is the doctor's son, the doctor is not the
boy's father. Then who is the doctor?
What’s the largest volcano in the solar system
Answer:
olympus mons
Explanation:
at 21.9km the enormous sheild volcano
Answer: Olympus Mons
Explanation: The largest volcano in the solar system is Olympus Mons on Mars. Olympus Mons is an enormous shield volcano of 21.9 km. A shield volcano is a broad domed volcano with gentle sloping sides. These sides come from the eruption of fluid basaltic lava.
Cloud or precipitation containing pollutants, such as oxides of sulfur and nitrogen, to make them have a lower ph. This can harm forests and concrete structures.
Answer:
TRUE
Explanation:
This phenomenon known as acid rain causes acidification of the environment, generating effects on soils and vegetation. Pollutants cause the death of trees after receiving large amounts of deposited sulfuric acid.
Acid rain causes alterations in microorganisms, plants, animals, and their ecosystem relationships. In the same way acid rain affects the characteristics of the climate, the topography and the aquatic or terrestrial surfaces, which determine the behavior and presence of different plants and animals.
Statues and stone monuments suffer erosion
Which macromolecule is made up of a glycerol backbone and 3 fat
acid tails? What does the structure look like?
Answer:
Fat molecule
Explanation:
A fat molecule comprises of a backbone which is made up of glycerol and a tail which is made up of three fatty acids. Glycerol can be described as a tiny molecule which is made of just three hydroxyl groups (OH) whereas fatty acids are long compounds comprising long chains of hydrocarbons. These hydrocarbons are attached to the carboxyl group. Normally, fatty acids contain 12 to 18 hydrocarbons but can carry as low as 4 and as high as 36 hydrocarbons.
Define the term amplifying as it is used in the second paragraph. Does the word have a
positive or negative connotation in this context?
Final answer:
Amplifying, in the context provided, usually has a positive connotation as it describes enhancing electrical signal strength. However, connotations can vary depending on the context, and in academic writing, a neutral to positive connotation is often sought.
Explanation:
In the context provided, the term amplifying refers to the process of increasing the strength of a weak electrical signal without changing its other characteristics. The word amplifying itself does not innately possess a positive or negative connotation; its connotation depends on the context in which it is used. In the context of electronic amplification, the term is generally considered positive because it describes the enhancement or improvement of signal strength. However, when used metaphorically or in different contexts, the connotation may change. For example, amplifying negative attitudes or information might be seen as a negative action.
Connotations are important in both spoken and written language, as they can influence the reader's or listener's perception of the subject being discussed. Academic writing typically strives for a neutral to positive connotation to maintain a professional tone.
Juan is interested in finding out whether hummingbirds attracted to sunflowers more than others. In what order should one perform the steps of his experiment
Final answer:
To analyze the experiment, Juan should average the number of visits flies make to sprayed vs. control flowers for each flower type across five trials, then compare and contrast these to determine any patterns of attraction. He should also assess if appearance or smell influences the attraction more, and form a conclusion about his hypothesis based on these comparisons.
Explanation:
To analyze the data effectively, Juan will need to determine the average number of visits that flies make to sprayed and unsprayed/control flowers for each type of flower. By doing this for both flower types over the course of five trials, he can compare and contrast these averages to draw conclusions. Specifically, Juan should look for patterns of attraction to sprayed flowers compared to control flowers.
For the second flower type, Juan should repeat the experiment, ensuring that it's a different species normally pollinated by bees. After collecting the results of the number of visits by flies to both sprayed and control/unsprayed flowers, Juan should again calculate the averages.
With this data, it's possible to investigate whether appearance or smell has a greater effect on attracting flies, by comparing the averages for both flower types. If there is a significant difference in the average number of visits to one type of flower over another, it could suggest that the flies have a preference that could be due to either appearance, smell, or a combination of both. Finally, Juan should form a conclusion that reflects whether the results support his initial hypothesis.
Final answer:
Juan should design a controlled experiment to test whether hummingbirds prefer sunflowers, collect and analyze data on their visitation habits, and draw conclusions comparing the results to his hypothesis.
Explanation:
To investigate whether hummingbirds are more attracted to sunflowers than other flowers, Juan should follow a systematic approach to experimental design. First, he must define a clear hypothesis detailing his expectation regarding the hummingbirds' attraction to sunflowers in comparison to other flowers. Following this, Juan should establish controlled variables, such as the environment where the sunflowers and other flowers are placed, and ensure that the flowers are the only variable in the experiment that is different.
Once the setup is ready, Juan should observe the number of visits by hummingbirds to the sunflowers and compare these to the number of visits to the control group of flowers. This should be done over multiple trials to ensure the reliability of the results. If the experiment also involves the use of sprayed flowers to test for additional factors like smell, Juan should consider the average number of visits flies made to sprayed flowers over the course of several trials and compare it to the average number of visits to control flowers. He should then analyze whether any potential attractants like scent sprays have a significant impact on the attraction of the hummingbirds or flies to the flowers.
After collecting and analyzing the data, Juan can draw conclusions regarding the preference of hummingbirds for sunflowers over other flower types. This systematic approach allows Juan to determine if his hypothesis is supported by the experimental evidence. Should the evidence not support the hypothesis, he would then need to explore further to understand the influencing factors in the hummingbirds' flower preference.
An organism is made of many cells, cannot move on its own, and absorbs food from its
environment. What kingdom does it belong to?
Fungi
Protista
Plantae
Animalia
Answer:
So a immobile multicellular eukaryote would probably be Plantae could you be slightly more specific because it could technically also be considered a fungi.
The sequence of _____________ produces a new copy of an organism's genetic information.
Answer:
DNA Replication
Explanation:
DNA Replication is the process of what produces a new copy of an organism's genetic information, which is passed on to a new cell.
Final answer:
DNA replication is the biological process that produces a new copy of an organism's genetic information, crucial for growth, reproduction, and genetic inheritance. Mutations can alter DNA sequence, influencing inherited traits. Cloning and genetic engineering also rely on DNA replication for producing multiple copies of genetic material.
Explanation:
The sequence of DNA replication produces a new copy of an organism's genetic information. DNA replication is a critical biological process that ensures each new cell receives a complete copy of the genome. This process allows for genetic information to be passed down from generation to generation and ensures the faithful transmission of genetic traits. DNA replication is necessary for both growth and reproduction of organisms. In multicellular organisms, it begins with the division of a single cell, often the fertilized egg, and every time a cell divides, its DNA is duplicated so that the daughter cells have all the necessary information. Mutations can occur spontaneously or due to external factors, which can change the nucleotide sequence and lead to inherited differences in offspring.
In the context of genetic engineering and cloning, DNA replication is also employed to create numerous copies of specific genes or DNA sequences, which are essential for advanced research and the development of new genetic modifications. These methods often make use of plasmids or viruses to amplify the desired DNA sequences within host cells.
What type of organism are prokaryotic?
Answer:
Bacteria is one.
Explanation:
because they are single celled.
A prokaryotic is a "unicellular organism." A unicellular organism are single celled organisms with only one cell. A prokaryotic are like bacteria and archaea and they both classify as prokaryotic's because they are single cell organisms.
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Which statement describes the offspring of the F, generation when crossing a pea plant that is true breeding for green seeds
with a pea plant that is true breeding for yellow seeds?
The green trait is the dominant trait
The offspring will inherit one allele from each parent
The offspring will have both green and yellow seeds
Each offspring will have a unique set of alleles,
Mark this and return
Save and exit
Next
Submit
Answer:
the way its set up its kind of confusing
Explanation:
Answer:
B.) The offspring will inherit one allele from each parent
Explanation:
Edge
PLZ HELP ME!!! Read the passage "Easter Island Palm." Choose the answer below that best fits the problem on Easter Island.
In the 1400s, the Easter Island palm became extinct due to overharvesting. Reproduction was nearly impossible because islanders introduced rats when they first arrived. These rats ate the Easter Island palm seeds, preventing the Easter Island palm from flourishing. With the disappearance of the palm, the islanders could no longer build the boats they needed for fishing.
A.the erosion of topsoil, leading to decreased crop production
B.the loss of pollinating birds to the island, resulting in a decrease in the variety of plant life on the island
C.an increase in the islanders' consumption of land and migratory birds, resulting in a decrease in the bird population
D.a decrease in the temperature, leading to decreased biodiversity
Answer:
do u go to gca???
Explanation:
Answer:
Explanation:
Its D
:)
Describe what energy is
Answer:
Energy is the ability to do work.
Explanation:
There are many forms of energy, but the overall description is the ability to do work.
Energy is basically the ability to do work. Energy is in basically everything. We use energy for everything we do, for scoring a goal to baking brownies or to send astronauts into space. Energy comes in different forms but they can be put into two categories which are potential energy and kinetic energy.
How are the starting reactants and the products of photosynthesis and cellular
respiration related?
Final answer:
Photosynthesis and cellular respiration are interlinked processes where the reactants of one are the products of the other. Photosynthesis uses carbon dioxide and water to produce glucose and oxygen, while cellular respiration uses glucose and oxygen to release energy and produce carbon dioxide and water. They form a cycle essential for life on Earth.
Explanation:
The starting reactants and the products of photosynthesis and cellular respiration are intimately related, reflecting a remarkable symmetry between the two processes in the carbon cycle. Photosynthesis, which occurs in the chloroplasts of plant cells, combines carbon dioxide (CO₂) and water (H₂O) in the presence of sunlight to produce glucose (C₆H₁₂O₆) and oxygen (O₂) as products:
6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂
Cellular respiration, on the other hand, occurs in the mitochondria of all aerobic (oxygen-using) organisms, including plants. This process takes the products of photosynthesis (glucose and oxygen) to produce energy (ATP), along with carbon dioxide and water as products, essentially running the photosynthesis equation in reverse:
C₆H₁₂O₆ + 6O2 → 6CO₂ + 6H₂O + energy (ATP)
These reciprocal relationships demonstrate that the photosynthesis and cellular respiration act as a cycle that continuously recycles carbon dioxide, water, glucose, and oxygen, making them essential to the energy flow and matter cycling in living organisms.
The grouping of objects or events based on similar characteristics is called
observation
interpretation
measurement
classification
Submit An
The sorting of objects or events based on similar characteristics is called as Classification.
Answer: Option D
Explanation:
As the population of living species is very high, they are classified under different categories based upon the similarities exhibited by then through process called as classification or taxonomy. Such type of processing is required in order to rule of the difficulties arising during the research. The organisms are classified under seven titles namely:
(1) Kingdom
(2) Phylum or Division
(3) Class
(4) Order
(5) Family
(6) Genus
(7) Species
Describe the three types of life cycles a plant can have
Explanation:
crece florece y muere
aveces talbien concideras el crear fruto o semilla