Answers
The pyramid of biomass represents: (1) Amount of living tissue within a trophic level.
Biomass represents the amount of total weight or quantity of an individual or a group of individuals. Biomass is actually the renewable organic material of the plants or the animals. Biomass in ecology can be species biomass where only a specific species is considered or it can be community biomass where the biomass of all the species in a region is considered.
Trophic level represents a hierarchical level of any organism in a food chain or in the ecological pyramids. It is simply the location where an individual belongs.
The question is incomplete, the complete question is:
What does a pyramid of biomass represent?
Amount of living tissue within a trophic level.Number of total organisms within each trophic level. Percentage of energy that's passed through each trophic level.Range of food webs found in one trophic level.To know more about trophic level, here
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Related Questions
Which shows a correctly paired DNA molecule? TCT CG AGA CG
Answers
Answer:
TCT, AGA
Explanation:
T-A
C-G
discuss efficiency of skin as a barrier
Answers
Answer:
The skin prevents pathogens from entering our body. It covers almost all parts of our bodies and if we get a cut, the skin will begin to heal itself so no bacteria can get into our bodies and cause infections.
Explanation:
What would be the most likely result if humans stopped burning fossil fuels?
Answers
Answer:
It allows an ozone layers not to be greatly in big holerelease fresh airAnswer:
If human stop burning fossil fuels then the condition and pollution will desperate. There would be more carbon dioxide and less oxygen.
hope it helps you!!!Which of the following is NOT an example of a biological model? (all answers choices 2nd slide)
Answers
Answer:
pictures of different ecosystems
Explanation:
i got it right
In which of the following situations does the cell use active transport?
Answers
Answer: The correct option is B. Sodium ions move into the cell from areas of lower concentrations.
Explanation:
Active transport can be described as a process in which molecules move from an area of lower concentration to an area of higher concentration against the concentration gradient. Energy is required for the process of active transport to occur.In the option B, sodium ions are moving into the cell from areas which have a low concentration of sodium i.e against the concentration gradient. Hence, option B tells that the sodium ions will move inside the cell by the process of active transport.
Explanation:
In horses, the genes for white coat color and red coat color are codominant. Heterozygotes have a light red coloration, called roan. If you located a population of wild mustangs in a valley that had 476 red horses, 323 roan horses, and 51 white horses, could you say the population is in Hardy-Weinberg equilibrium? First calculate p and 9, then use the Hardy-Weinberg formula to calculate expected genotypic frequencies.
Answers
The observed frequencies are similar to the expected frequencies, indicating that the population is in Hardy-Weinberg equilibrium.
Value of p and q are calculated to be 0.75 and 0.25 respectively. using Hardy-Weinberg formula frequency of homozygous red horses, white horses and heterozygous roan horses are 0.56, 0.06, 0.38 respectively
In this scenario, the genes for white coat color and red coat color in horses are codominant, which means that neither allele is dominant over the other, and heterozygotes display a distinct phenotype.
The frequency of red horses is 476/850 = 0.56, the frequency of roan horses is 323/850 = 0.38, and the frequency of white horses is 51/850 = 0.06.
To determine if the population is in Hardy-Weinberg equilibrium, we need to calculate the allele frequencies. Let p represent the frequency of the red allele and q represent the frequency of the white allele. The frequency of the roan allele can be calculated as 1 - p - q.
p = (2 x number of red horses + number of roan horses) / (2 x total number of horses) = (2 x 476 + 323) / (2 x 850) = 0.75
q = (2 x number of white horses + number of roan horses) / (2 x total number of horses) = (2 x 51 + 323) / (2 x 850) = 0.25
The frequency of the roan allele can be calculated as 1 - p - q = 1 - 0.75 - 0.25 = 0.
Using the Hardy-Weinberg formula (p^2 + 2pq + q^2 = 1), we can calculate the expected genotypic frequencies.
The frequency of homozygous red horses (RR) is p^2 = (0.75)^2 = 0.56.
The frequency of homozygous white horses (WW) is q^2 = (0.25)^2 = 0.06.
The frequency of heterozygous roan horses (RW) is 2pq = 2 x 0.75 x 0.25 = 0.38.
The observed frequencies are similar to the expected frequencies, indicating that the population is in Hardy-Weinberg equilibrium. However, it is important to note that other factors, such as non-random mating or genetic drift, could still affect the genetic makeup of the population over time.
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involves duplication of chromosomes mitosis or meiosis
Answers
Mitosis is an essential biological process. A cell duplicates its contents, including its chromosomes, and splits to form two identical daughter cells during mitosis.
Mitosis results in the formation of two identical daughter cells, each with the same number of chromosomes as the parent cell. In contrast, meiosis produces four distinct daughter cells, each with half the number of chromosomes as the parent cell. Because meiosis generates cells that will become gametes (or reproductive cells), this reduction in chromosome number is critical; without it, the union of two gametes during fertilization would result in offspring with twice the normal number of chromosomes.
Apart from the chromosome number reduction, meiosis differs from mitosis in another way. Meiosis, in particular, generates new genetic material combinations in each of the four daughter cells. These new combinations are the result of DNA exchange between paired chromosomes.
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How is solar power collected on a large scale?
Answers
Answer:
SEGS is a parabolic trough solar installation that uses concave mirrors to focus the sun's rays on oil-filled pipes. The fluid in these pipes is then pumped to make high-pressure steam, driving turbine generators and creating electricity.
1. a) Students are trying to decide which is better for the environment: glass
bottles or aluminum cans. They intend to use a formal method of investigation to
determine which container is better. They are going to make a list of pros and
cons for using each type of container but first need to do some research. The
students need to find out things like how much matter and energy are used to
make the bottles and cans.
What are two other things the students should look at before evaluating which
container is better for the environment? (2 points)
Think about what factors influence the environmental effect of a container.
Answers
I think aluminum cans, one they can be reused in more ways than glass bottles: which would make it healthy for the environment; another reason to why aluminum cans would be better for the environment is that glass bottles can’t be formed into other objects or be reused as well.
Explain why aerotolerant and microaerophilic microbes can't survive high oxygen levels but they can survive low levels.
Answers
Answer:
it’s A
Explanation:
The Arizona poppy has adapted to living in areas that receive less rain, but there are still periods of time that a drought occurs. What part(s) of photosynthesis would the plant not be able to perform if there is no rain? What would be the long-term effects on the plant if the drought were to continue? Explain your answer.
Answers
If there is no rain, the Arizona poppy would not be able to perform the light-dependent reactions of photosynthesis.
What are the stages of photosynthesis?Photosynthesis is a process that involves two main stages: light-dependent reactions and light-independent reactions.
Water is required in the light-dependent reactions to provide the electrons that are needed to generate ATP and NADPH, which are then used in the light-independent reactions to produce glucose.
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Which of the following accurately describes the relationship between
feedback mechanisms and homeostasis?
A. Feedback mechanisms are the organism's response to changing
conditions. They keep working until internal conditions return to
normal.
B. Feedback mechanisms counteract homeostasis.
C. Feedback mechanisms have no relationship to homeostasis.
D. A feedback mechanism is initiated when conditions are stable for
too long. They work until the organism wakes up and begins to
move around.
Answers
The correct answer is A. Feedback mechanisms and homeostasis are closely related in that feedback mechanisms help to maintain homeostasis in living organisms. (option-a)
Homeostasis is the process of maintaining a stable internal environment despite external changes. Feedback mechanisms are the physiological responses of an organism to maintain this stability. For example, if the body temperature drops, the feedback mechanism in the body responds by shivering to generate heat and maintain the internal temperature. Similarly, if the body temperature rises, the feedback mechanism in the body responds by sweating to cool down and maintain the internal temperature. In both cases, the feedback mechanism works until the internal conditions return to normal, thereby maintaining homeostasis. Therefore, feedback mechanisms are essential for the maintenance of homeostasis in living organisms.(option-a)
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Type the correct answer in the box. Spell all words correctly.
What is a close relationship between two organisms that live together called?
The close relationship between two organisms that live together is called
Reset
Next
Answers
Answer:
symbiosis.
Explanation:
The term that you are referring to is symbiosis. (a symbiotic relationship)
Symbiosis is a proximate and often long-term interaction between two or more different biological species.
A farmer decides to test whether or not a fertilizer will make her crops grow bigger. In year 1, she plants corn in two different fields on her property and fertilizes one and not the other. She measures the height of 10 corn plants in meters from each field. She takes her measurements every week for three months. In year 2, she puts irrigation in one of the fields and conducts the same experiment.
Required:
a. What is the independent variable and the treatments (increments) used in the experiment?
b. What is the dependent variable and the units in which it was measured?
c. Name at least two controlled variables:
d. What is the hypothesis?
e. Identify two sources of error in the first year in the experiment:
f. Identify two sources of error in the second year in the experiment:
Answers
Answer:
a. independent variable: the fertilizer.
treatments: the use of fertilizer in one of the fields.
b. dependent variable: the crop growth in height.
units: meters
c. two controlled variables: soil pH / solar-radiation exposure, and water supply
d. hypothesis: the fertilizer makes the crops grow bigger.
e. two sources of error in the first year:
the researcher might plant the two crops under different conditionstake wrong measures of the height of the cornsf. two sources of error in the second year:
she can fail in irrigating the crops climatic and environmental conditions might change and have different consequences on each of the fields (this source affects the results influencing the growth of the plants).Explanation:
Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. These changes allow analyzing its effects on the dependent variable. Usually, the independent variable is represented by the X letter. In the exposed example, the fertilizer is the independent variable. Treatments: Refers to the experimental procedure applied in the experimental group. In this example, the use of fertilizer is the treatment. Here the experimental group (the one that receives the experimental procedure, with changes in the independent variable) is the fertilized field. Data from the experimental group is compared with the data from the control group, to analyze the effects of the fertilizer.Dependent variable: The values of these variables respond to any change in the independent variable. It represents the quantity of something. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y. In the exposed example, the crop growth rate in height is the dependent variable, that depends on the fertilizer used in that field. The units in which the crop is measured are meters in height. Controlled variable: Refers to those variables equally applied to every group or subject in an experiment and have no influence on the results. These variables do not affect the change in the dependent variable values. In the exposed example, soil pH and solar-radiation exposure can be two controlled variables, as they must be equal for both fields. Water supply by irrigation ducts during the second year in both fields is also a controlled variable. Hypothesis: A hypothesis is a possible answer for a question, a speculation that is not verified yet and requires corroboration. A hypothesis must express what is expected to occur in a perfectly comprehensive manner. It must be objective and directly related to variables. In this example, the hypothesis might be that the fertilizer makes the crops grow bigger. Errors: These are the differences between the observed data or taken values and what is really happening in nature, which can lead to a misinterpretation of what is actually going on. These errors might be systematic mistakes performed by the researcher when measuring, taking data, applying the treatment, etc. Or they might be due to random errors, which are due to failures in the instrumentals, changes in the environment, a single mistake of the researcher while taking measures, among others. During the first year, the researcher might plant the two crops under different conditions (parcels with different slopes which affect solar-radiation) or might commit a mistake while applying the fertilizer (different concentrations for example), or might take wrong measures of the height of the corns. During the second year, she can fail in irrigating the crops correctly, providing more water to one of the fields. She can commit the same measuring mistakes. Or even climatic and environmental conditions might change and have different consequences on each of the fields.Will this movement re hire an input of energy?
Answers
Their movement will require the input of energy. That is option B.
What is an active transport?An active transport is defined as the movement of molecules across the cell membrane from different compartments in the living organism.
The active transport makes use of energy because of the need to move molecules from a semi permeable membrane that is against a concentration gradient.
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Name the missing level of classifica�on.
Answers
The Swedish botanist Carolus Linnaeus gave the system of classification of organisms. This classification is done under the branch of taxonomy.
The classification of organisms is also referred to as taxonomical hierarchy.
According to this classification, there are seven levels:
1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus
7. Species
Kingdom is the highest level of classification, whereas species is the lowest level.
There are five kingdoms - Monera, Protista, Fungi, Animalia and Plantae.
Species is unique for a group of organisms having similar characteristics genotypically and phenotypically.
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Annelids
Characteristics
Annelids are the most advanced type of worms are known as
segmented worms. The segmented structure of annelids help them
move and survive predators. They can live in saltwater, freshwater,
and damp soill. Most of them are scavengers and burrow into soil or
sand.
What is a common feature of
ALL of Phylum Annelida?
A have a closed-circulatory system
B. scavenge for food
C. have a segmented body plan
D. contain anti-coagulant factors
Answers
Common feature of all of Phylum Annelida : C.) have a segmented body plan.
What are some characteristics of annelids?Phylum Annelida is also known as segmented worms. It is characterized by the presence of a segmented body plan which is a common feature among all members of this phylum. This segmentation allows them to move and survive predators, by having more flexible and complex body structure.
Some of them can live in different environments, such as freshwater, saltwater, and damp soil and most of them are scavengers and burrow into soil or sand. Other characteristics can vary among different species, such as having closed-circulatory system or anti-coagulant factors.
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BEFORE equilibrium has been reached in this container: (Circle a letter for each) 1. Movement of glucose across the membrane in this container can best be described as A. Solution A to Solution B B. Solution B to Solution A C. both directions D. neither direction
Answers
Hello. You forgot to put the image so that this question can be answered, but I will describe what the image shows.
The image shows two types of "cups" that have a type of connection between the two. In cup A there is 1 mole of glucose and 1 mole of fructose. In cup B there is 0.1 mol of glucose and 1.5 mol of fructose.
Answer:
A. Solution A to Solution B
Explanation:
Balance is achieved when the "cup" with the lowest concentration of glucose receives glucose from the "cup" with the highest concentration, to the point that the two glasses establish equal concentrations of glucose between them.
We know that cup B has a lower concentration of glucose, which indicates that the movement of this solute was from cup A towards cup B. With this we can conclude that the letter A is the correct answer.
1. choose three different parts of brain? How each of these three parts of your barin
Answers
Answer: I don’t understand your question
Explanation:
how are elements in the group in the periodic table alike?
Answers
Which of the following methods do scientists use to measure the amount of carbon dioxide in the atmosphere?
Locate an area outside that has clean, uncontaminated air and use a special type of flask to capture an air sample.
In the lab in a controlled setting, use a special type of flask to capture an air sample.
In the lab in a controlled setting, breathe directly into an open flask capturing a sample of carbon dioxide.
Use an airplane to travel high into the atmosphere. Then, use a special type of flask to reach out a window and collect an air sample.
Answers
According to Jesse Kroll, an MIT professor of chemical engineering and civil engineering who specializes in atmospheric composition, the primary method used by scientists to quantify greenhouse gases in the atmosphere is spectroscopy. Thus, option A is correct.
What is the amount of carbon dioxide in the atmosphere?Only 0.04% of the atmosphere is made up of carbon dioxide, and water vapor levels can range from 0% to 4%. However, while being the main greenhouse gas in our atmosphere, water vapor possesses “windows” that let some infrared light pass through without being absorbed.
Therefore, find a location outside with pure, unpolluted air, then use a special kind of flask to collect an air sample.
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Do-Now:
When writing a CER, what are the writing and science aspects you need to remember. Give me 3
specific details.
Answers
Answer:
In the Claim, do not give evidence, just a short thing saying "I am right". In the evidence, don't explain just add links to articles or quotes, and then explain your claim and evidence together in your reasoning.
Explanation:
--
Which structure forms the outer wall of a mollusk's body and protects its internal organs?
-mantle
-foot
-gill
-shell
Answers
Answer:
mantle
Explanation:
just did this question
Answer:
The answer is mantle
Explanation:
What would happen to a bacterial cell if its protective covering was destroyed? It would be better protected from the outside environment. It would be able to take in materials more easily. It would be harmed by chemicals in the environment. It would reproduce more slowly.
Answers
Answer:
it would be harmed by chemicals in the environmenti
If a bacterial cell's protective covering was destroyed - It would be harmed by chemicals in the environment.
The cell wall of bacteriaThe cell wall is a outer layer that surrounds the cell membrane and protects bacteria. It is serve as a protective barrier between inner membrane and external environment.
It is essential for maintenance of cell shape and structure as well as the prevent it from harmfull chemicals present in the environement.
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Which pieces of information are typically seen on a newspaper weather map?
isobars
isotherms
symbols for fronts
symbols for long-range predictions
Answers
Answer:
c
Explanation:
symbols for fronts
The pieces of information that are typically seen on a newspaper weather map are: symbols for fronts.
What is a weather map?
A weather map can be defined as a type of publication that is typically used to provide information about the average atmospheric condition of a geographical region over a specific period of time.
In Meteorology, symbols for fronts refer to the pieces of information that are typically seen on a newspaper weather map, which provide information on air masses.
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What carries nutrients and oxygen from the mother to the fetus.
A. Umbilical cord
B. Fallopian Tubes
Answers
Answer:
Umbilical Cord
Explanation:
The unbilical cord uses the blood of the mother to carry oxygen to the blood of the fetus through the placenta.
how many moles of C atoms do you have if you have 1.23 x 10^24 atoms ?
Answers
Answer:
2.04 moles of C atoms
Explanation:
The number of moles of C atoms can be calculated using Avogadro's number, which is approximately 6.02 x 10^23 atoms per mole.
To find the number of moles of C atoms in 1.23 x 10^24 atoms, we need to divide the number of atoms by Avogadro's number:1.23 x 10^24 atoms / 6.02 x 10^23 atoms/mole = 2.04 moles
Therefore, if you have 1.23 x 10^24 atoms of C, you would have 2.04 moles of C atoms.
What new details are you able to see on the slide when the magnification is increased to 10x that you could not see at 4x? What about 40x?
Answers
As the magnification increases, more specific information, such as the nucleus of cells on the slide, is seen.
What is magnification?
The majority of compound microscopes include objective lenses, which are replaceable lenses. The most popular magnification powers for objective lenses are 4x, 10x, 40x, and 100x, commonly referred to as scanning, low power, high power, and (usually) oil immersion objectives.
More minute characteristics of the cells and the form of the stained nuclei may be seen at a magnification of 40 times. You can see a smaller area of the specimen because of the reduced field of view at higher magnifications. Furthermore, keep in mind that although appearing to be incredibly thin, the item on the slide actually has a thickness.
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what does the pH scale indicate
Answers
Answer:
pH is a measure of how acidic/basic water is
Explanation:
What is Obama´s last name
Answers
Answer: Obama
Explanation:
Answer:
Barack Hussein Obama
Explanation:
Barack Hussein Obama