PLEASE HELP :) Can someone please explain what primary production is? Also what does sink/source/flux/ and egestion mean? (Can an organism be a sink/source and flux at the same time or is an organism only supposed to be one or the other?
Answers
Answer:
It describes the rate at which plants and other photosynthetic organisms produce organic compounds in an ecosystem.
Sources are carbon emitters
sinks are carbon absorbers
The movement of any material from one place to another is called a flux
Egestion: The act of excreting unusable or undigested material from a cell
Explanation:
fluxes are flows of carbon between sources and sinks. A source may also be a sink.
Related Questions
The chart below shows some information about two scientists.
Name of
Details about scientist
Views about the solar system
scientist
Nicholaus
Studied Aristotle's theory of homocentric spheres and
Ptolemy's mechanism of epicycles
Suggested that Earth revolved around the
sun in spherical orbits
Copernicus
Johannes Kepler
Studied astronomy and incorporated religious beliefs into Suggested that the orbits of planets were
his works
elliptical
Which of these statements best explains why Copernicus and Kepler had different views about the solar system?
O They came from different cultures.
O They liked to disagree professionally.
O They had different goals and interests.
O They misinterpreted scientific facts and data.
Answers
The best statement that explains why Copernicus and Kepler had different views about the solar system is that they had different goals and interests, which is the third option, as Copernicus and Kepler had different perspectives on the solar system.
Copernicus, a Polish astronomer, was interested in the simplicity and elegance of the universe and sought to find a more accurate model of the solar system. He proposed that the sun, not the earth, was at the center of the solar system, which was a revolutionary idea at the time. On the other hand, Kepler, a German astronomer, was more focused on the mathematical and physical aspects of the solar system and used his observations of the planets to develop the laws of planetary motion.
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After circulating through the pulmonary circulation, blood returns to the heart at the
Answers
Answer:
In the lungs, the blood receives oxygen then leaves through the pulmonary veins. It returns to the heart and enters the left atrium
Explanation:
Which of the following describes erosion caused by glaciers?(2 points)
It forms big ice chunks.
It changes the temperature.
It happens quickly.
It takes a long time.
Answers
Answer:
It takes a long time.
Answer:
it forms big ice chunks but the answer is it take a long time
Explanation:
glaciers are formed by snow that does not completely melt and stratify. when snow is under the influence of super layers it initially turns into pieces of ice and over time turns into glaciers
Based on the graph, the half-life of this radioactive isotope is
Answers
Answer:
3h
Explanation:
What is the difference between biotic and abiotic factors? How do they interact within an ecosystem?
Answers
Why did scientists once think that DNA was too
simple to contain the genetic information of liv-
ing things? Explain why their reason was not
correct.
Answers
Compared to proteins, DNA was made up of only 4 bases. Due to its simplicity, scientists thought DNA was too simple to contain genetic information.
Why the reasoning behind DNA's simplicity was incorrect?Deoxyribonucleic acid also known as DNA is the genetic material of organisms. It is made up of 4 nucleotide bases, Adenine, Guanine, Thymine, and Cytosine.
Proteins are made up of 20 different amino acids. Amino acids are the building blocks of proteins and the variety of arrangement gives rise to different functions of the protein.
As protein offered more varieties when compared to DNA, scientists initially thought it was too simple to carry genetic information.
The reasoning was wrong as it was later found out that DNA, not proteins conferred heritable traits. These traits were passed down through generations successively. DNA also had the ability to replicate and showed the property of transcription and translation.
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Cougar cubs have fur with spots that are the same color as the forest floor. How does this adaptation help the cougar cubs survive?
They become more aware of any forest predators trying to hunt them.
They can blend in with the forest floor, making it harder for predators to spot them.
They can look colorful to attract and prey on other animals.
They can run faster, protecting themselves from predators.
Answers
Answer:
The adaptation of having fur with spots that are the same color as the forest floor helps cougar cubs to blend in with their environment, making it harder for predators to spot them. Therefore, the answer is "They can blend in with the forest floor, making it harder for predators to spot them."
Answer: Option (B) is correct They can blend in with the forest floor, making it harder for predators to spot them.
Explanation: Hope it helps!
Good luck!!!
E FilI in the blanks :
1. Carbon dioxide is released during the process of_.
2. Exchange of gases in plants takes place through the cracks in bark is_.
3. Yeast undergoes_
respiration
4. The final products obtained in the anaerobic respiration are_,_,_.
5._ is the energy currency of the cells.
6. The breathing and respiration in woody stem of a plant takes place through_.
7. During Marathon race, we sometimes get painful contractions of leg muscles due to the accumulation of_.
8. The process of respiration which releases energy takes place inside the cells of the body is known as_.
9. The mechanism by which organisms obtain oxygen from air and release carbon dioxide is called_.
10. Seat of respiration is_.
Answers
Answer:
1. Carbon dioxide is released during the process of cellular respiration
2. Exchange of gases in plants takes place through the cracks in bark is Lenticel
3. Yeast undergoes aerobic respiration
4. The final products obtained in the anaerobic respiration are lactic acid, carbon dioxide, and water
5. ATP-Adenosine Triphosphate is the energy currency of the cells.
6. The breathing and respiration in woody stem of a plant takes place through lenticels
7. During Marathon race, we sometimes get painful contractions of leg muscles due to the accumulation of lactic acid
8. The process of respiration which releases energy takes place inside the cells of the body is known as cellular respiration
9. The mechanism by which organisms obtain oxygen from air and release carbon dioxide is called breathing.
10. Seat of respiration is mitochondria
Credit to Kirstenbruke3376
What is needed for photosynthesis to happen? Light and ___.
An important product of the first reaction is ____. It drives the Calvin cycle and it provides the energy stored in glucose.
Answers
The thing that needed for photosynthesis to happen is Light and carbon dioxide.
An important product of the first reaction is ATP, adenosine triphosphate. It drives the Calvin cycle and it provides the energy stored in glucose.
Photosynthesis explained.
Photosynthesis is the process where green plants, algae, and bacteria convert light energy from sunlight to produce chemical energy in the presence of carbon dioxide and chlorophyii to produce glucose and water.
The process of photosynthesis is a very important process that ensure the sustainability of life on Earth. It is divided into two processes which are light dependent stage and dark reaction.
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Given the controversy over drilling for oil as well as transporting oil, what is a viable option for the future?
A)
Move the drilling sites to more remote locations in and around the United
States.
B)
Reduction of fossil fuel use through the incorporation of more green power
sources.
C)
Drill anyway; disregarding the wishes of the people living in the
surrounding areas.
D)
Reconsider the purchase and use of foreign oil in an effort to improve
global relationships with the U.S.
Answers
Answer:
I think it is a
Explanation:
What is the primary ingredient in the decomposition layer of the ecocolumn?
A. humus
B. mostly gaseous carbon dioxide
C. only rocks
D. mostly pebbles
Answers
A (Humus).
HELP ASAP
Mrs. Digby was a very prissy person, always holding out her pinky finger when she drank tea and eating her cakes with neat, tiny bites. Afterward, she always folded her napkin in a tidy square and laid it exactly so on the table.
What is the correct meaning of prissy in this context?
Responses:
prim
elderly
fancy
perfect
Answers
Answer:
A. prim
Explanation:
Prim means formally precise or proper, as the person or behavior. Stiffly neat. In the context, it describes Mrs. Digby as a very neat person.
Hope this helps!
What happens if there are no checkpoints in the cell cycle.
Answers
Answer:
they may "loop out" of the cell cycle and into a resting state called G0, from which they may subsequently re-enter G1 under the appropriate conditions
Explanation:
At the G1 checkpoint, cells decide whether or not to proceed with division based on factors such as: Cell size
In the laboratory, students pressed hulled, raw sunflower seeds between
two pieces of paper cut from a brown lunch bag. Oily dark spots
appeared on the paper. The test confirmed the presence of which
biological macromolecule in the sunflower seeds? *
O Carbohydrate
Lipid
Nucleic acid
Protein
Answers
Answer:protein
Explanation:
Numerous amino acids with positively charged amino groups in their side chains make up proteins, hence option D is correct.
What is Protein?Nitrogen atoms are present in these amino groups, large, intricate molecules known as proteins that serve a variety of vital functions in the body.
They are crucial for the construction, operation, and control of the body's tissues and organs and carry out the majority of their job inside cells.
Pre-translational activities such as protein folding, modifications, and proteolysis are often included together with transcription, translation, and post-translational events.
In order for your body to repair damaged cells and create new ones, you need protein in your diet. Children, teenagers, and expectant women all need protein for healthy growth and development.
Therefore, oily dark spots appeared on the paper the test confirmed the presence of Protein.
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what is an insect's antennae most similar too?
Answers
Insect's antennae is most similar to the nose
They are used for the sense of smell.
Which of the following is a nucleotide found in DNA?
Answers
Answer:
d
Explanation:
Answer:
I am sure the answer is d
Which type of energy causes the equator to be hotter than the north pole?
Answers
Answer: solar energy
Explanation:The amount of solar energy in a given area is greater at the equator than in an equal area at the poles, which is why the equator temperature is warmer than the polar temperatures.
Answer: solar energy
Explanation: I took the test
Freckles are recessive. no freckles are dominant. mom heterozygous dad homozygous recessive. possible out come for kids?
Answers
The possible outcome for the kids in this scenario is that they will all have freckles. Let me explain why.
When it comes to freckles, the trait for having freckles is recessive, meaning that it is masked or hidden when the dominant trait (no freckles) is present. In this case, the mom is heterozygous, meaning she has one copy of the freckles gene and one copy of the no freckles gene. The dad, on the other hand, is homozygous recessive, meaning he has two copies of the freckles gene.
Since freckles is a recessive trait, in order for a child to have freckles, they must inherit two copies of the freckles gene - one from each parent. In this scenario, all of the possible outcomes for the kids will be that they inherit one copy of the freckles gene from the mom and one copy from the dad, resulting in them having freckles.
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Look at the food web in the figure to the right. What is the role of mice in this ecosystem?
a. primary producer
b. primary consumer
c. secondary consumer
d. decomposer
Answers
In the food web, mice are not classified as primary producers, which are typically plants or other organisms capable of photosynthesis that convert sunlight into energy. Here option A is correct.
Mice also do not fit the role of decomposers, which are responsible for breaking down organic matter and returning nutrients to the ecosystem. Instead, mice are best described as primary consumers in this ecosystem.
As primary consumers, they occupy the second trophic level in the food web, directly consuming the primary producers. In this case, the primary producers are represented by plants or other organisms that convert sunlight into energy through photosynthesis.
By consuming the primary producers, mice obtain energy and nutrients, serving as an important link between the producers and higher trophic levels in the food web. They are herbivorous animals that rely on plant material for sustenance. In this capacity, mice play a crucial role in regulating the population of primary producers and influencing the overall structure and dynamics of the ecosystem.
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Which of the following sets of organelles can be found in both eukaryotes and prokaryotes?
nucleus and mitochondria
Golgi body and nucleus
ribosomes and cell membrane
chloroplast and nucleus
Answers
Answer:
ribosomes and cell membrane
Explanation:
Prokaryotes are not allow to have nucleus. They have free roaming DNA, so only ribosomes and cell membrane can be both.
Survival on land for organisms is difficult because of the problem of.
Answers
Answer: Relatively less abundant water on land makes survival difficult for terrestrial animals. All four problems stem from a lack of water. Terrestrial animals spend energy looking for water, which is not available easily. Terrestrial temperature fluctuates widely, so energy investments have to be made to keep body temperatures regulated.
Explanation:
To date, all of the following have been found to be associated with IncRNAs EXCEPT:
A. IncRNAs have an unusually long open reading frame.
B. a certain IncRNA interacts with p53, repressing p53. some IncRNAs have binding sites for miRNAs.
C. some IncRNAs are involved in regulation of gene expression.
D some IncRNAs modify chromatin structure.
Answers
Option A, which suggests that IncRNAs have an unusually long open reading frame, is the correct answer as it does not accurately describe the characteristics of IncRNAs. The other options (B, C, and D) are associated with IncRNAs and their known roles in gene regulation and cellular processes.
To date, all of the following have been found to be associated with IncRNAs EXCEPT:
A. IncRNAs have an unusually long open reading frame.
IncRNAs, or long non-coding RNAs, are a class of RNA molecules that do not typically encode proteins. Unlike messenger RNAs (mRNAs), which have open reading frames that can be translated into proteins, IncRNAs lack significant protein-coding potential and have limited or no protein translation capacity. Therefore, option A, stating that IncRNAs have an unusually long open reading frame, is incorrect.
On the other hand, the remaining options (B, C, and D) are all associated with IncRNAs:
B. Some IncRNAs interact with p53, repressing p53: IncRNAs can interact with various proteins, including transcription factors like p53, and participate in the regulation of gene expression. The interaction between specific IncRNAs and p53 can lead to the repression or modulation of p53's activity.
C. Some IncRNAs are involved in the regulation of gene expression: IncRNAs play diverse roles in gene regulation, such as acting as transcriptional regulators, enhancers, or scaffolds for protein complexes involved in chromatin remodeling and transcriptional regulation.
D. Some IncRNAs modify chromatin structure: IncRNAs can influence chromatin structure and gene expression by recruiting chromatin-modifying complexes or by interacting with chromatin-associated proteins.
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PLEASE HELP ME!!! I NEED THIS SO I CAN PASS MY CLASS AND I ONLY HAVE TEN MINS LEFT!!!! Comparing the four most common types of power plants in Alberta (coal, natural
gas, wind, and hydroelectric), which has the lowest efficiency in electricity
generation? and why?
Answers
Answer:
wind generated power plants. they have the lowest efficiency because it is not always windy and the wind varies everyday, thus the wind turbines will generate different amounts of electricity each day. They also can be very noisy and cause noise pollution. Wind Plants need good land place and these are mainly found in rural areas far from the city that the electricity is needed.
hey. hope this helps
Three sources of genetic variation are
A. genotypes, phenotypes, and polygenic traits
B. sexual reproduction, lateral gene transfer, and mutations
C. single-gene traits, polygenic traits, and adaptation
D. directional selection, disruptive selection, and stabilizing selection
Answers
Answer:
B
Explanation:
The venomous lion fish is native to the Indian Ocean and the South Pacific Ocean. This fish has recently been introduced into the Atlantic Ocean. This makes the lion fish an ___________.
Answers
Answer:
I believe the answer is invasive species
(Please let me know if its wrong)
Answer: an invasive species
Explanation:
the animal is brought to a new area which the other fish might not attack it but it will for survival.
I think
what is the name of the sphincter that separates the stomach from the small intestine
Answers
The name of the sphincter that separates the stomach from the small intestine is the pyloric sphincter.
The pyloric sphincter is a muscular ring that controls the flow of partially digested food from the stomach to the small intestine. It is located at the bottom of the stomach and regulates the release of chyme (a mixture of food, enzymes, and gastric juice) into the duodenum (the first part of the small intestine).
The pyloric sphincter opens and closes to allow the chyme to pass through in small amounts, ensuring proper digestion and absorption of nutrients in the small intestine. A malfunction of the pyloric sphincter can lead to digestive problems such as acid reflux and gastroparesis.
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Which statement best describes a dormant plant? *
1.It is in need of food,
2.It is hardy
3.It is inactive
4.It is fast growing
Answers
Explanation:
Dormant plants are plants that are able to endure and survive in such harsh conditions. Looking at the definition of “Hardy” it is indeed the correct answer.
Also If you wanted, you could use process of elimination to answer this question.
1. It is in need of food.
While this may be half true, it isn’t fully correct because most dormant plants have waxy covered leaves, or some storage function to save water. That allows them to survive.
2. It is hardy.
This is true because dormant plants are very strong plants for being able to survive in such harsh conditions. That being said this answer is most likely correct.
3. It is inactive.
Dormant plants are kind of like hibernating bears because they store and collect to survive but there is one difference and it’s that bears go to sleep and are inactive while these plants remain active.
4. It is fast growing.
This is kind of hard to answer but there is one thing that makes this answer not correct and it’s that this doesn’t correlate to the original question. What does a dormant plant have to do with fast growing?
Looking at all these answer choices, we have managed to find the (hopefully/most likely) correct answer.
I hope this helped you! :)
Which of the following represents the flow of information within a cell?
A. RNA> protein>DNA.
B. DNA> protein.
C. DNA> RNA> protein.
D. DNA> protein > RNA.
Answers
Answer:C. DNA> RNA> protein
Explanation:
Information flows from DNA to RNA to Protein. The process start with replication of information into a new strand of Deoxyribonucliec acid from a template strand this information are in coded in Nitrogenous Bases after which the information transfered to an intermediary ribonucliec acid called the messanger RNA this process is called transcription, mRNA then transfer the information to the ribosome where translation will take place into an amino acid sequence or a functional protein with the help of transferase enzyme. The amino acid then specifies the information that is coded in the form of Nitrogenous Organic bases.
Therefore, information moves from DNA(replication) to RNA(transcription) to Protein(Translation).
During chemiosmosis, hydrogen ions accumulate in the ______ of the mitochondrion to create a large electrochemical gradient for aerobic cellular respiration.
Answers
During chemiosmosis, hydrogen ions accumulate in the intermembrane space of the mitochondrion to create a large electrochemical gradient for aerobic cellular respiration.
The concentration of hydrogen ions in the intermembrane space is higher than in the matrix as a result of the pumping of hydrogen ions through the inner membrane. As a result of this chemiosmotic gradient, the ions move back over the membrane into the matrix, where their concentration is lower, as a result of this chemiosmotic gradient.
The intermembrane gap is pumped with protons (H+) during this process. Protons flow through ATP synthetase in the inner membrane as a result of the gradient formed by the high proton concentration in the intermembrane gap and the low proton concentration in the matrix.
During cellular respiration, ATP is created via a process called chemiosmosis. Protons migrate through certain channels during chemiosmosis from the inner to the outer compartment of mitochondrial membranes.
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All living things require ______ and _______to maintain a high level of organization
Answers
Answer: a light source (sun) and water
Explanation: