how is a food web diffrent from a food chain
Answer:
A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. ... It is important to note that consumers can be carnivores, animals that eat other animals, and also omnivores, animals that consume many types of food.
- Geosciences LibreTexts
Answer:
A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. so they are connected at some point but they have their differences.
Explanation:
Write a ""lifeline"" of a robin over the first year of its life. Include important events.
Answer: I hope that this helps you please give me brainiest
Robins are born in the spring or summer and are mature birds and ready to breed in the following spring or summer. They do not mate for life. Pairs usually remain together during an entire breeding season, which can involve two or three nestlings.
Since leaving the nest (fledgling), it takes another 10-15 days for babies to become good fliers and individual birds. The parents continue to feed their young throughout this time.
Explanation:
How long do robins live?
A. Most robins die their first year. But the lifespan goes up dramatically for the ones that survive that critical time, because they've learned so many important life skills. Of those that survive their first year, most wild robins live to be about 5 or 6. As of February, 2001, the longest-living banded wild robin ever recorded had survived 13 years and 11 months, according to the Bird Banding Laboratory at the Patuxent Wildlife Research Center. In captivity, robins have survived longer than 17 years.
Q. Do robins mate for life?
A. No, robins do not mate for life. Pairs usually remain together during an entire breeding season, which can involve two or three nestings. However, in spring, sometimes a male and female who mated the previous year will both return to the same territory and end up together for another year. This happens most frequently when they were successful raising babies the previous year.
Q. How long do robins stay in the egg? (egg stage)
A. About 12-14 days after the last egg was laid. (Robins lay one egg per day, for a total of 5-6 eggs in a clutch.)
Q. How long do robin babies stay in the nest (nestling stage)?
A. Baby robins jump from their nest when they are about 13 days old (but the range is 9 - 16 days old).
Q. When do young robins learn to fly? (fledgling stage)
A. After leaving the nest (fledging), it takes another 10-15 days for babies to become strong fliers and independent birds.
Q. How long does it take a robin to go from egg to independence?
A. Here is a summary:
Life Cycle Stage # Days
Egg 12 - 14
Nestling 9 - 16
Fledgling 10 - 15
Total 31 - 45
Q. How old are robins when they mate?
A. Almost one year old. Robins are mature adults and ready to breed in the spring that follows the spring or summer they were born.
identify the vein running in the anterior interventricular sulcus.
The vein running in the anterior interventricular sulcus is the left anterior descending (LAD) coronary artery. It is a major blood vessel that supplies oxygenated blood to the front and sides of the heart muscle.
The left anterior descending artery, also known as the anterior interventricular artery, is a branch of the left coronary artery. It descends along the anterior interventricular sulcus, which is a groove that separates the right and left ventricles on the anterior surface of the heart. The LAD artery plays a crucial role in supplying oxygen and nutrients to the myocardium (heart muscle). It supplies blood to a significant portion of the interventricular septum, the anterior wall of the left ventricle, and parts of the right ventricle. Due to its location and the important territories it supplies, blockage or narrowing of the left anterior descending artery can lead to a heart attack or other cardiac complications. Therefore, understanding the anatomy and function of this vein is crucial in diagnosing and treating cardiovascular diseases.
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A cell sends messages to itself via
O paracrine signaling
o the endocrine system
k
o the nervous system
O autocrine signaling
A cell sends messages to itself via Autocrine Signaling
Autocrine signaling refers to the generation and extracellular secretion of a given chemical messenger that interacts with receptors present in the plasma membrane of the same target cell, thereby initiating a signal transduction pathway.An example of an autocrine signaling pathway is the production and secretion of the cytokine interleukin-1 (IL-1) pro-inflammatory cytokine in monocytes.Moreover, paracrine signaling is a type of signaling that occurs between local cells.Endocrine signaling is a type of signaling pathway that occurs between distant cells. This type of signaling is mediated by chemical messengers called 'hormones' which are released from endocrine cells and travel throughout the body.Learn more in:
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A change in pH has the greatest impact on which life process?
A change in pH has the greatest impact on which life process?
A) synthesis
B) regulation
C) growth and development
D) transport
A change in pH can have a significant impact on many life processes, but it has the greatest impact on regulation.
define pH ?
pH is a measure of the acidity or basicity of a solution. It is a logarithmic scale that ranges from 0 to 14, with 7 being neutral, values less than 7 being acidic, and values greater than 7 being basic or alkaline. The pH of a solution is determined by the concentration of hydrogen ions (H+) in the solution. A higher concentration of H+ ions in a solution corresponds to a lower pH and greater acidity, while a lower concentration of H+ ions corresponds to a higher pH and greater basicity.
A change in pH can have a significant impact on many life processes, but it has the greatest impact on regulation. pH is a measure of the acidity or basicity of a solution and plays a critical role in many biological processes, including enzyme function, protein structure, and the stability of cell membranes. A small change in pH can cause significant disruptions in these processes, which can lead to a range of physiological changes and health problems. For this reason, organisms have evolved various mechanisms for regulating their internal pH, including the release of buffers and the control of acid-base balance, in order to maintain a stable internal environment and ensure proper functioning.
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QUE RELACION GUARDAN LAS IMAGENES DE LA DERECHA CON LA BIODIVERSIDAD
No la relación de las imágenes de derecho con la biodiversidad ya que la biodiversidad, la Biodiversidad está relacionada, entre otros factores, con la diversidad de especies y también con las variaciones presentes dentro de una misma especie.
¿Qué tiene que ver con la biodiversidad?La biodiversidad está relacionada, entre otros factores, con la diversidad de especies y también con las variaciones presentes dentro de una misma especie. La biodiversidad se refiere a las diferentes especies de seres vivos que habitan en una región, así como a la diversidad que existe entre estos seres vivos.
How important is biodiversity to our lives?This diversity of life is called biodiversity, which is the variety of life existing in nature. It is thanks to biodiversity that food, clothing, medicines and energy can be obtained, representing one of the greatest riches of planet earth, although it is undervalued.
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What type of cells do not have a nucleus?
Answer:
Prokaryotes
Explanation:
Answer:
Prokaryotes
Explanation:
Distinguish between natural selection and artificial selection.
Answer: Natural selection is based on the adaptive characteristics of animals. Artificial selection is based on the desirable characters selected by humans. Only beneficial or favorable traits are inherited over the successive generations by natural selection. Natural selection is performed on all the types organisms; Artificial selection is processed on some selective organisms of humans desires. ... Natural selection results in the transformation of the entire population of a species; Artificial selection brings out the new variety of that species.
Explanation:
Answer:
answer in explanation
Explanation:
Natural selection occurs over a long period of time and happens naturally. artificial selection happens relatively fast and occurs when humans choose a certain trait they like and help the animal with that trait reproduce.
In which type of macromolecule do mutations occur in humans?
Mutations occur in all types of macromolecules, including proteins, nucleic acids, lipids, and carbohydrates. However, mutations in nucleic acids (DNA and RNA) are the most significant as they lead to changes in the genetic information that is passed on to future generations.
DNA, the genetic material in most organisms, is a long chain of nucleotides that consists of a sugar, a phosphate group, and a nitrogenous base. The sequence of nucleotides determines the genetic code that is responsible for the development and function of an organism. A change in the nucleotide sequence, or a mutation, can have a variety of effects depending on the location and nature of the mutation.
Mutations in DNA can be classified as either point mutations or chromosomal mutations. Point mutations occur when a single nucleotide is changed, inserted or deleted in the DNA sequence. These can lead to different types of changes, such as a change in the amino acid sequence of a protein or changes in gene expression. Chromosomal mutations involve changes in the structure or number of chromosomes, which can lead to genetic disorders or developmental abnormalities.
Mutations in DNA can occur spontaneously during DNA replication, or they can be induced by various factors, including radiation, chemicals, and viruses. Certain mutations can also be inherited from parents, and these can lead to genetic disorders such as sickle cell anemia, cystic fibrosis, and Huntington's disease.
In conclusion, mutations can occur in all types of macromolecules, but mutations in DNA have the most significant impact as they can alter the genetic information that is passed on to future generations. Understanding the nature and effects of mutations is essential in the fields of genetics and medicine, as it can help in the diagnosis, prevention, and treatment of genetic disorders.
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For the following template
DNA sequence:
3 TÁC AGA - GGT -
TCG - ATC 5'
a) provide the amino acid
sequence
b) provide the anticodons in
order
c) Mutate the above DNA
sequence to introduce a
silent substitution. Write the
mutated DNA sequence
down.
Make sure to clearly
indicate if your answer for
each part by labeling it a) or
b) or c)
Answer:
a) Methionine- Serine- Proline- Serine- STOP.
b) UAC- AGA - GGU -
UCG - AUC
c) AUG- UCG- CCA- AGC- UAG
Explanation:
A) The DNA sequence in this question is given as follows: 3 TÁC -AGA - GGT -
TCG - ATC 5'. This sequence undergoes transcription and translation (gene expression) in order to give rise to an amino acid sequence.
The mRNA sequence that will result following transcription is: AUG- UCU- CCA- AGC- UAG
Following translation, each codon in the above mRNA sequence will result in the following amino acid sequence: Methionine- Serine- Proline- Serine- STOP.
B) Anticodons are a group of three nucleotides that are complementary to a codon found on the tRNA molecule. The anticodons for each codon on the mRNA sequence is: UAC- AGA - GGU -
UCG - AUC
C) Silent mutation is a type of substitution mutation in which one or more nucleotide base is replaced by another in such a way that it does not change or alter the amino acid sequence. Using the mRNA sequence: AUG- UCU- CCA- AGC- UAG
A mutated sequence is as follows: AUG- UCG- CCA- AGC- UAG. Note that, G has replaced U in the second nucleotide. However, there is no change in amino acid that results because the same UCU that codes for SERINE is also encoded by UCG.
12 Which of the following best describes
the energy change that occurs when a
stretched rubber band is
suddenly released?
(1) kinetic to potential
(2) mechanical to potential
(3) potential to kinetic
(4) kinetic to mechanical
which artery branches into the common hepatic artery, splenic artery, and left gastric artery?
The artery that branches into the common hepatic artery, splenic artery, and left gastric artery is called: Celiac artery.
Cardiac cycle refers to a complete heart-beat of the mammalian heart which comprises sequential alternating contraction and relaxation of the artery and ventricle; thereby, causing blood to flow unidirectionally (in one direction) throughout the body of a living organism such as a human being.
An artery can be defined as a blood vessel that is saddled with the responsibility of carrying oxygen-rich blood from the heart to organs and tissues in the body of a living organism.
A celiac artery is also referred to as a celiac trunk or celiac axis and it can be defined as a major splanchnic artery in the abdominal cavity that supplies blood for:
The liver.Small intestine.Pancreas.Spleen.Basically, the celiac artery is an artery which branches into multiple arteries such as the common hepatic artery, splenic artery, and left gastric artery.
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SELECT ALL OF THE FOLLOWING THAT ARE TRUE
The graph below shows the number of birds with a given beak depth in a certain location. Data was collected before the
white columns) and after (the black columns) a drought. For example, before the drought, about 30 birds with a beak
depth of 8.3 mm were counted. Which of the three statements below are best supported by the data in the graph?
A. Longer beaks are more advantageous in drought conditions
B. No birds with beaks exceeding 11 mm have been counted
C. Beaks shorter than 10 mm are never advantageous
D. A drought can cause some beak depths to disappear
E. The drought caused the bird population to decrease
F. Only birds with beak depths greater than 9.3 mm will survive a drought
Answer: E
Explanation:
There was no set pattern in the graph involving beak depth, only that the population decreased immensely.
Zappos says goodbye to bosses - The Washington Post
Reflect on the changes to organizational structure
taking place at Zappos. What concepts are illustrated in this
article? Has it been a successful i
The changes taking place at Zappos illustrates numerous concepts related to organizational structure. The Holacracy system being adopted by the company removes the traditional line of command; instead tasks are delegated by employees to “circles” which are then serviced by members of those circles.
It focuses on efficiency of operations, as decisions are made in a decentralized fashion. Furthermore, the organization encourages employees to engage in learning and development to reach their potential, which is complemented by the company’s employee-first mentality.
It is difficult to ascertain whether these changes have been successful in so far as it is too early to ascertain the long-term effects. While the initial reports from the media focus on the positive aspects such as improved communication, job autonomy and growth, it remains to be seen if the company will continue to succeed or fall flat.
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In no less than 300 words, summarize General Strain Theory, Social Control Theory, and Social Learning Theory. Provide an example for each.
General Strain Theory, Social Control Theory, and Social Learning Theory are among the leading criminological theories that explain criminal behavior, delinquency, and the reasons why people deviate from the social norm.
General Strain Theory(GST) is a sociological theory that asserts that individuals' strain or stress can lead to criminal behavior. According to GST, three sources of strain; failure, negative stimuli, and separation can contribute to an individual's deviant behavior.
Example: Suppose a person is looking for work but is continually refused because of his age. This may cause the person to feel frustrated and may lead him to engage in criminal behavior.
Social Learning Theory asserts that people learn to be violent or non-violent based on observation and modeling from their environment, and people in their social surroundings. The theory argues that people will engage in criminal behavior if they think the benefits outweigh the negative consequences. the theory also suggests that people are more likely to be violent if they feel their environment encourages it.
Example: A child might be exposed to a parent who uses violence as a means of problem-solving. They may grow up believing that violence is the only way to solve problems and begin engaging in violent behaviors themselves.
Social Control Theory argues that people do not commit crimes or deviant behavior because they fear the negative consequences of doing so and they are less likely to engage in deviant behavior as they have stronger ties to society.
Example: A person may choose not to engage in criminal behavior because they fear the punishment that may come with it.
In conclusion, these three theories attempt to explain criminal behavior and deviant behavior from different perspectives. While General Strain Theory argues that strain or stress leads to deviant behavior, Social Control Theory suggests that people will refrain from criminal activity because of the consequences. Social Learning Theory asserts that people learn from their environment and the people in it and may model or imitate their behavior.
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A product is sold at a price of $120 per unit and its variable cost is $80 per unit. The fixed expenses of the business are $8,000 per year. Find (i) BEP in $ and units, (ii) profits made when sales are 240 units. Calculate the profit and do a CVP Analysis.
(i) BEP in $: $8,000
BEP in units: 100 units
(ii) Profits made when sales are 240 units: $4,800
(i) BEP in $ and units:
To find the Break-Even Point (BEP) in dollars, we need to divide the fixed expenses by the contribution margin per unit. The contribution margin per unit is the selling price minus the variable cost per unit.
BEP in $ = Fixed expenses / Contribution margin per unit
BEP in $ = $8,000 / ($120 - $80) = $8,000 / $40 = $8,000
The BEP in dollars is $8,000.
To find the BEP in units, we divide the fixed expenses by the contribution margin ratio.
BEP in units = Fixed expenses / Contribution margin ratio
Contribution margin ratio = Contribution margin per unit / Selling price per unit
Contribution margin ratio = ($120 - $80) / $120 = $40 / $120 = 1/3
BEP in units = $8,000 / (1/3) = $8,000 * 3 = 300 units
The BEP in units is 300 units.
(ii) Profits made when sales are 240 units:
To calculate the profit, we need to subtract the total costs (fixed costs + variable costs) from the total sales.
Variable costs = Variable cost per unit * Number of units sold
Variable costs = $80 * 240 = $19,200
Total costs = Fixed expenses + Variable costs
Total costs = $8,000 + $19,200 = $27,200
Profit = Total sales - Total costs
Profit = (Selling price per unit * Number of units sold) - Total costs
Profit = ($120 * 240) - $27,200
Profit = $28,800 - $27,200
Profit = $1,600
The profit made when sales are 240 units is $1,600.
CVP Analysis:
Cost-Volume-Profit (CVP) analysis is a tool used to analyze the relationship between costs, volume, and profits. It helps in understanding how changes in sales volume affect profitability.
In this case, the CVP analysis can be performed using the given data:
Sales revenue = Selling price per unit * Number of units sold
Sales revenue = $120 * 240 = $28,800
Variable costs = Variable cost per unit * Number of units sold
Variable costs = $80 * 240 = $19,200
Contribution margin = Sales revenue - Variable costs
Contribution margin = $28,800 - $19,200 = $9,600
Contribution margin ratio = Contribution margin / Sales revenue
Contribution margin ratio = $9,600 / $28,800 ≈ 0.3333
Break-Even Point (BEP) in units = Fixed expenses / Contribution margin per unit
BEP in units = $8,000 / $40 = 200 units
Profit = (Selling price per unit * Number of units sold) - Total costs
Profit = ($120 * 240) - ($8,000 + $19,200)
Profit = $28,800 - $27,200
Profit = $1,600
By conducting a CVP analysis, we can determine the Break-Even Point, contribution margin, and analyze the profitability based on the given data.
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How are musk ox affected by a lengthened warm season?
1. A lengthened warm season results in more slugs that grow on plants that musk ox eat. Slugs are known to carry parasites that can kill musk ox.
2. A lengthened warm season results in the shriveling of plants that musk ox eat. Without these plants, musk ox cannot survive.
3. A lengthened warm season results in more active arctic wolves. Wolves prey on musk ox so the population would decline.
Need ASAP. Thx as well:D
Given what we know, we can confirm that musk ox are affected by a lengthened warm season due to the fact that a lengthened warm season results in the shriveling of plants that musk ox eat. Without these plants, musk ox cannot survive.
What is the cause and effect relationship here?The effect, in this case, would be the endangerment of the musk ox population. This can be caused by a food shortage, as crops that are adapted to survive in winter climates would die off during a lengthened warming season. This, along with an increased number of parasites such as lungworms, which thrive in warmer conditions, would endanger the musk ox population. The most common cause of these conditions changing is global warming.Therefore, given the fact that the disappearance of a steady source of food is often the prime culprit of a decrease in animal populations, we can confirm that a lengthened warm season results in fewer winter crops that the musk ox needs to survive.
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Answer:the answer is c,
hope this helps! :]
Explanation:
Identify characteristics of prokaryotes that differentiate them from eukaryotes. (more than 1 answer).a. no genetic materialb. no membrane-bound organellesc. no internal compartments
These are the characteristics of prokaryotes that differentiate them from eukaryotes. The correct options are b. no membrane-bound organelles c. no internal compartments
The following characteristics differentiate prokaryotes from eukaryotes:
No membrane-bound organelles: Prokaryotes lack membrane-bound organelles such as mitochondria, chloroplasts, and endoplasmic reticulum. Instead, their intracellular functions are carried out by various structures and enzymes within the cytoplasm.
No internal compartments: Prokaryotic cells lack the internal compartments, such as a nucleus or endomembrane system, that are characteristic of eukaryotic cells.
Identify characteristics of prokaryotes that differentiate them from eukaryotes. (more than 1 answer). a. no genetic material b. no membrane-bound organelles c. no internal compartments
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Vegetation determines the kinds of animals that live in an area because plants?
Answer:
No, plants don't grow in any area because they know they are going to be eaten by animals.The vegetation is just determined by the climates and the environment. You could have a whole forest in your backyard if it wasn't for structures being build and trees being cut down.
Explanation:
Water is taken from a river, treated, used by people of a community, sent to a city sewage treatment plant, and put back into the river. Is this aquatic pollution? Defend your response.
Answer:
heres a link to a website that could help you
https://www.americanrivers.org/threats-solutions/clean-water/sewage-pollution/
i swear its not a troll or scam
Onepage review on why understanding gas and vapors in a work setting is important and what we can do in our workplace to prevent accidents with gases and vapors.
Understanding gas and vapours in a work setting is incredibly important for workplace safety. Gas and vapours can contain noxious substances that, if exposed to, can lead to serious injury or health implications.
In order to prevent such accidents, employers must perform risk assessments in order to assess and identify any areas of risk and put in place control measures to limit them. If gas and vapours are used onsite, then suitable ventilation and extraction systems should be in place.
Employers should also ensure that their staff are aware of the potential risks associated with such substances and provide adequate training and instruction in how to work safely. Finally, employers should also check that any necessary personal protective equipment is provided and communications are in place to be able to notify relevant emergancy responders in case of an accident.
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Number of Individuals 120 100 80 60 40 20 0 1.4 meters meters Height 30 Years Ago Present Data Part B The researcher thinks the changes in data are a result of selection. Do you think directional, disruptive, or stabilizing selection is occurring? How does your data support this conclusion?
All selection kinds have the same ideas, yet they differ greatly. In contrast to directional selection, which prefers just one extreme, disruptive selection encourages both extreme phenotypes.
What real-world example would best illustrate directed selection?Galapagos Island's arid climate causes plants to produce large seeds with a tough seed coat.Finches with small beaks cannot eat these large, difficult seeds.The drought affects the direction of selection in the finch beaks as well as the size and hardness of the seeds.
Stabilising selection favours the median phenotype, which over time minimises diversity in a population.
Birth weight is a prime example of a trait that has strong stabilising selection when it is present.
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Uses energy from sunlight to make food in the form of sugar
Answer:
Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose.
Explanation:
If I’m wrong, sorry. If I’m right, mark me brainlest!
Answer:
Photosynthesis uses energy from sunlight to make food in the form of sugar. Hope this helps! :)
44. In humans, the inheritance of
a. sickle-cell disease
b. blood type
C. cystic fibrosis
45. What are the alternate forms of a gene?
a. phenotypes
b. alleles
c. inherited traits
is best explained as being polygenic.
on the chromosome tend to be inherited together.
46. Traits on
a. the same chromosome and closer to each other
b. different chromosomes and closer to each other
c. the same chromosome and opposite to each other
47. The process by which physical and biological characteristics are transmitted from the parent or
parents to the offspring is
a. inheritance.
b. translation.
c. transcription.
Explanation:
discuss the similarities between hepaticopsida, anthocerotopsida, bryopsida
1. - Inherited traits are governed by
A hybrids
B genes
C purebreds
D fertilization
Answer:
Genes
Explanation:
Genes control traits. Hope this helped :)
The tiny grains of pigment in the cortex that give natural color to the hair is called ___
The tiny grains of pigment in the cortex that give natural color to the hair is called melanin. Melanin is a pigment found in the cells of the skin, hair and eyes, and is responsible for the natural color of these organs.
Melanocytes, specialised cells found in the epidermal layers of the skin and the deepest layer of the hair follicle, are responsible for producing melanin. The amount of melanocytes present and hereditary factors affect melanin content, which varies from person to person.
The colour of the hair will be darker the more melanin there is. From yellow to red to black, different forms of melanin are responsible for producing various hair colours.
They can even create various shades of the same colour. The quantity of melanin in the hair affects the colour and intensity of the hair as well as how well it will hold its colour after bleaching and colouring.
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Which of the following statements are true? Select all that apply.
A. The order of amino acids in a protein does not affect the protein’s function.
B. Each type of amino acid interacts in the same way with molecules in the cell environment.
C. A protein’s structure depends on the order of its amino acids.
D. The shape of a protein can affect its function.
Answer:
C. A protein’s structure depends on the order of its amino acids.
Answer: The real anwser is C and D
please help me :(, i need help
Answer:
Normal hemoglobin DNA C A C G T A G A C T G A G G A C T C
Normal hemoglobin mRNA G U G / C A U / C U G / A C U / C C U / G A G
Normal hemoglobin AA sequence Valine-Histidine-Leucine-Threonine-Proline-Glutamic Acid
Explanation:
I hope this is right.
Calibration of ocular micrometer: stage micrometer is a glass slide having precisely spaced lines etched at know intervals, the smallest space in stage micrometer is 1 µm. The length of 1 ocular unit (the smallest single space of ocular micrometer) is ________ µm.
The correct answer is 0.2 micrometers. Since 5 single spaces of the ocular micrometer fit in one space of the stage micrometer. That is 5 single spaces of the ocular micrometer = 1 space of the stage micrometer (which stands for 1 micrometer).
for each of the following, state whether it is an organelle , a cell , a tissue , an organ , an organ system, or an organism a) heart b) trachea c) onion epidermis d) onion bulb e) onion plant f) human being g) lung
b heart because it is connected to the organelles