Answers
As shown by the peak in the frequency distribution at that point in Fig. 5.2., the most frequent cell length of the E. coli cells immediately after cell division is approximately 0.002 mm.
What are E. coli cells?Escherichia coli (E. coli) is a facultative anaerobe, nonsporulating, Gram-negative coliform bacteria. It is usually rod-shaped and ranges in diameter from 0.25 to 1.0 μm.
The lower intestine of warm-blooded organisms frequently harbors the bacteria Escherichia coli (E. coli) and most strains do not cause harm while a few strains can cause disease.
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Related Questions
11. Where are subduction zones likely to form?
Answers
Answer:
Brainliest pls
Explanation:
Subduction zones happen generally around the edge of the Pacific Ocean, seaward of Washington, Canada, Alaska, Russia, Japan, and Indonesia. Called the "Ring of Fire," these subduction zones are answerable for the world's greatest seismic tremors, the most over-the-top horrible torrents, and a portion of the most obviously awful volcanic emissions.
in selective breeding, the desirable traits are chosen.
a. true
b. false
Answers
Which of the following ecosystem services do sharks provide?
Answers
Sharks help in the regulation of the Population of marine species.
Which of the following ecosystem services do sharks provide?Sharks provide several ecosystem services, including:
Regulation of Marine Populations: As top predators, sharks help regulate the populations of other marine species, which can prevent overgrazing of important habitats and help maintain the overall health of marine ecosystems.
Maintenance of Biodiversity: Sharks are a keystone species in many marine ecosystems, meaning that they play a critical role in maintaining the overall biodiversity of these ecosystems. By preying on a variety of species, sharks help ensure that no one species becomes too dominant, which can lead to imbalances in the ecosystem.
Carbon Sequestration: Some species of sharks, such as the whale shark, are filter feeders that consume large quantities of plankton. By removing plankton from the water, they help sequester carbon from the atmosphere and transport it to the ocean floor.
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What will happen to plant cells if there were no plasmodesmata?
Answers
Answer:
Intercellular transportation would not have occurred if there were no plasmodesmata.
Explanation:
Plasmodesmata are intercellular pores connecting adjacent plant cells allowing membrane and cytoplasmic continuity and are essential routes for intercellular trafficking, communication and signaling in plant development and defense
Exchange of molecules and chemical signals between the two adjacent plant cells will not take place.
What is plasmodesmata?Plasmodesmata forms the connections between the two adjacent plant cells through the exchange of cytoplasmic content.
Plasmodesmata forms channels or pores in the membrane through which the cellular components like endoplasmic reticulum, plasma membrane and cytoplasm of two nearby plant cells are connected.
A connection formed between the plant cells through plasmodesmata facilitate exchange of cellular content. This is important for transport of substances across the cells.
Plasmodesmata facilitate movement of nutrients in plant cells. It is also helpful in transport of proteins and hormones.
Plasmodesmata is also important as it serves the function of cell division in plants. It is formed during cytokinesis.
Plasmodesmata are the type of cell junctions and are similar to gap junctions found in animals.
Therefore, plasmodesmata is dynamic for plants cellular activities.
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What determines the boundaries of a watershed?
A.
man-made boundaries like drainage ditches and reservoirs
B.
elevation features like hills, mountains, and ridges
C.
placement of cities and urban sprawl
D.
average annual rainfall in the areav
Answers
Answer:
B. Elevation features like hills, mountains, and ridges
Explanation:
A watershed is all of the land and water areas that drain toward a particular lake or river segment. Thus, a watershed (or drainage basin) is defined in terms of each selected lake or river, such as "Mississippi river watershed". Watersheds can be identified on different scales. Large scale watersheds are composed of smaller areas called sub watersheds. For example, the Mississippi river has an extremely large watershed, encompassing most of the central United States, including all or part of 31 states. In contrast, Lake Itasca in north central Minnesota has a relatively small watershed. As the source of the Mississippi river, Lake Itasca's drainage basin is considered a sub watershed of the entire Mississippi River basin. The Minnesota Department of Natural Resources uses the following terminology to identify watersheds on different scales: regions, subregions, basins, subbasins, watersheds and sub watersheds.
Hope this helps! :)
blank are to ribosomes as lipids are to blank
Answers
Answer: Nucliec acid and protien
Hope this helps :) , have a nice day !
If after thousands of generations, genetic mutations lead to a new separate species, we refer to this change as
O variation
Ospeciation
O adaptation
O natural selection
Answers
Answer:
speciation is the answer beacuse Genetic mutation is the basis of species diversity among beetles, or any other organism. Mutations are changes in the genetic sequence, and they are a main cause of diversity among organisms. These changes occur at many different levels, and they can have widely differing consequences.
what texture of song A house is not a home?
Answers
Answer:
huh?
Explanation:
Can someone feel this chart out and give explanations. It’s on Benedict’s test, iodine test, Sudan test, and biuret test.
Answers
The biuret test is used to detect the presence of proteins in a sample. Biuret reagent is added to the sample, and if proteins are present, the copper ions in the reagent will bind to the peptide bonds in the protein, causing the solution to turn from blue to purple. The intensity of the color change is proportional to the amount of protein present in the sample.
What are Benedict’s test, iodine test, Sudan test, and biuret test?Benedict's test is used to detect the presence of reducing sugars, such as glucose and fructose, in a sample. To perform the test, the sample is mixed with Benedict's reagent and heated in a water bath. If reducing sugars are present, the solution will change from blue to green, yellow, orange, or red, depending on the concentration of reducing sugars.
The iodine test is used to detect the presence of starch in a sample. Iodine is added to the sample, and if starch is present, the iodine will bind to the starch molecules, forming a blue-black color.
The Sudan test is used to detect the presence of lipids or fats in a sample. Sudan III or Sudan IV dye is added to the sample, and if lipids are present, the dye will bind to the lipids, causing them to appear as red droplets in the sample.
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difference between mycoplasma and l form bacteria
Answers
Answer:
L-form bacteria are distinct from mycoplasmas, because Mycoplasma spp. do not originate from bacteria that normally possess a cell wall. ... Some of these bacteria remain as CWDB (stable L-forms), whereas others revert back to possession of a cell wall (unstable L-forms).
Explanation:
1. Fill in the blanks.
Chemical messengers called (1) ___
attach to receptor sites on the
(2) ____ of the receiving neuron. When enough of those excitatory chemical messengers are attached, the neuron reaches the point of firing called (3) _____.
Neurons either fire or they don't. There is no "sort of" firing. This is called an (4) _____ response. The firing is called a neural impulse - also called an (5) ______.
The neural impulse travels down the length of the (6) ____ to the
distant ends of the neuron called the (7) ____. This causes the chemical
messengers to be released into the empty spaces between neurons called the (8) _____ where they float across to the receptor sites on the receiving neuron, and the whole process repeats.
Answers
2. Dendrites
3. Threshold
4. All or none
5. Action potential
6 & 7: Axon/Axon terminal branches
8. Synapse
The chemical messengers are called as neurotransmitters as these are the sites on the dendrites. These are responsible for the transmission of signal in the nervous system.
What is Neurotransmission?Neurotransmission is a process by which signaling molecules called neurotransmitters are released from neurons. These are responsible for the transmission of nerve impulse across synapse.
Neurotransmitters are present in the axons of pre-synaptic neurons and are released into the dendrites of post-synaptic neurons. When a particular number of chemical messengers are released and attached to the post-synaptic neurons then the neuron reaches the point of firing called Threshold potential.
Neurons either fire together or they don't. This is called as All-or-none impulse. The firing is called a nerve impulse, which is also called as Action Potential.
The impulse travels down the length of pre-synaptic neuron axon to the distant ends of the terminal branches of axons and through this impulse is transported to dendrites of post-synaptic neurons.
The transportation of neurotransmitters from pre-synaptic neurons to the post-synaptic neurons is called as Synapse. This whole transport of synapse is called Neurotransmission.
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Why do large scale mutations have such a significant effect on organisms?
Answers
Large-scale mutations can have a significant effect on organisms because they involve changes in the DNA sequence that affect the function or expression of one or more genes.
These mutations can result in changes to the structure or function of proteins, which are the building blocks of cells and perform many critical functions in the body.
In some cases, large-scale mutations can also affect multiple genes or entire genetic pathways, leading to more widespread effects on an organism's physiology or behavior. This can result in reduced fitness, decreased survival, or even extinction in some cases.
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I NEED HELP!!!! What 4 minerals most commonly found in rocks?
•calcite
•feldspar
•fluorite
•halite
•hematite
•magnetite
•mica
•quartz
Answers
About 200 minerals make up the rocks.
What are Rocks?The chemical composition and atomic structure of minerals are distinctive. Numerous physical characteristics of minerals, including as hardness, lustre, streak, and cleavage, can be used to quickly identify them. For instance, the mineral quartz is quite hard and not as readily scratched as the mineral talc, which is quite soft and easily scratched.
One of the most effective ways to categorize and differentiate between various minerals is by careful examination of crystal forms.
A crystalline solid is composed of constituent atoms, molecules, or ions arranged in an orderly repeating pattern that extends across all three spatial dimensions.
Therefore, About 200 minerals make up the rocks.
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What role does the U.S. Constitution play in creating local governments?
OA. It requires that all local governments have constitutions based on
the federal document.
B. It gives the states the authority to create any local governments
they need.
OC. It gives the federal government the power to create any type of
local government.
D. It specifies the types of local governments that can be created by
the states.
Answers
Having dimples (D) is dominant over not having dimples (d). A dimples woman (whose father had no dimples and whose mother did have dimples) marries a man whose mother had no dimples, whose father had no dimples, and whose grandparents on his father's side did have dimples!
a. What is the genotype of the women? __
What is the genotype of the man?___
b. Genotype & phenotype?
c. How many different genotypes are possible among the offspring?
d. How many different phenotypes are possible among the offspring?
e. What is the probability of getting DD offspring?
f. What is the probability of getting dd offspring?
g. what is the probability of getting dimpled offspring?
h. What is the probability of getting offspring with no dimples
i. What is the probability of getting homozygous offspring?
Answers
The genotype of the woman is Dd (heterozygous for dimples). The man's genotype is dd (homozygous recessive for no dimples). The woman's genotype is Dd, and her phenotype is dimpled. The offspring can produce four possible genotypes: DD, Dd, dD, and dd.
What is the probability of getting dimpled offspring and offspring with no dimples?The probability of getting a dimpled offspring (DD or Dd) is 3/4 or 75% since the dominant D allele will result in dimples in both genotypes. The probability of getting an offspring with no dimples (dd) is 1/4 or 25% since both parents must contribute a recessive d allele for the offspring to have no dimples.
What is the probability of getting DD offspring and dd offspring?The probability of getting a DD offspring is 1/4 or 25% since both parents must contribute a dominant D allele. The probability of getting a dd offspring is 1/4 or 25% since both parents must contribute a recessive d allele.
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What is the trend in humans as it relates to skin color?
Answers
Answer:
As a species, humans exhibit a wide range of skin colors that vary across different regions of the world. Skin color is primarily determined by the amount of melanin produced by melanocytes in the skin, which is influenced by genetic and environmental factors. There is no one-size-fits-all trend in humans as it relates to skin color, but generally speaking, skin color tends to be darker in populations that live closer to the equator, where there is more intense sunlight and a greater need for protection against UV radiation. In contrast, skin color tends to be lighter in populations that live further away from the equator, where there is less intense sunlight and a greater need for the skin to produce vitamin D. It is important to note, however, that skin color is a complex and multifactorial trait that is influenced by many factors, including evolutionary history, genetic variation, and cultural and social factors.
Humans as a species display a wide variety of skin tones that differ between various geographical locations. The amount of melanin that the skin's melanocytes make, which is influenced by both genetic and environmental factors, is what mainly determines skin color. There is no universal human tendency when it comes to skin tone, but in general, populations that are closer to the equator tend to have darker skin because there is a greater need for protection from UV rays and more intense sunlight. People who live farther from the equator, where there is less intense sunlight and a greater need for the skin to make vitamin D, have lighter skin on average.
Can someone answer this for me ( field of view lab)
Answers
The diameter of the high power field of view is 1075 µm.
How to determine diameter?To calculate the diameter of the high power field of view, use the formula:
(diameter (LP) x magnification of LP objective)/magnification of HP objective = diameter (HP)
Plugging in the values given:
(4.3 mm x 10)/40 = 1.075 mm
Therefore, the diameter of the high power field of view is 1.075 mm.
To convert this to micrometers, multiply by 1000:
1.075 mm x 1000 = 1075 µm
Therefore, the diameter of the high power field of view is 1075 µm.
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Pain receptor, sensory neuron, spinal cord, motor neuron, & effector muscle.
Which of the above terms would be different if the reflex were a balance reflex? What term would you substitute?
Answers
Sensory neuron is responsible for the transport of signal from the receptor to the interneuron which is then connected with the motor neuron.
What term would you substitute?In a reflex arc, the receptors present in the skin receive stimulus and generate afferent impulse. The sensory neuron transmits the impulse to the interneuron. Interneuron is present in the spinal cord and activates it. The interneuron then sends back the impulse through the motor neurons to effectors whcih are present in the muscles for the response. Sensory receptors → sensory neurons → interneurons → motor neurons. Justine took a sip of milk and immediately spat it out because she realized it had soured. The path of the messages is sensory receptors → sensory neurons → interneurons → motor neurons, in her nervous system which cause this reaction. Sensory Receptor is that part of the nervous system that responds to stimuli Sensory Neuron is that type of neuron that carries messages from special receptors to the central nervous systemInterneuron is the type of neuron that connects sensory and motor neurons.Motor Neuron is the type of neuron that carries messages from the central nervous system to effectors.To learn more about neuron refer to:
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List at least 10 ways to maintain health care at home / community.
Answers
10 strategies for sustaining home or community-based healthcare are: consuming proper foods, maintaining a balanced diet, avoiding smoking and consuming alcohol, exercising on regular basis, taking necessary calories, Checking the blood pressure and other blood components on a routine basis, and using a mask or protection to prevent disease spread, and wash hands properly, maintain cleanliness in and outside the apartment, drink plenty of safe water.
Discussion about the strategies:
Consume a variety of foods, such as fruits, vegetables, legumes, nuts, and whole grains for healthcare.Limit your daily salt consumption to 5g, or roughly 1 teaspoon. It is simpler to do this by choosing low-sodium foods and by reducing the amount of salt, soy sauce, fish sauce, and other high-sodium condiments you use while cooking meals, removing salt from your meal table, avoiding salty snacks, and removing salt, spices, and condiments from your meal table.Less than 30% of our entire calorie consumption should come from fats. Necessary calories should be taken.There is no recommended safe amount of alcohol consumption. So, stay away from alcohol.The term "physical activity" refers to any skeletal muscle-driven movement that involves the use of energy. So, get moving.One term for high blood pressure is "silent killer". This is due to the fact that many people with hypertension could not be conscious of the issue as it might not show any symptoms. So be sure to check your blood pressure often.When you start to cough or sneeze, make sure your mouth is covered with a face shield or a tissue, and then dispose of it safely.Use bug repellent and dress in light-colored, long-sleeved shirts and slacks as a healthcare strategy. Use bed nets, door and window screens, and weekly cleanings to eliminate mosquito breeding grounds in your house.Take in a lot of clean water. Water-borne illnesses including typhoid, dysentery, hepatitis A, fever, and polio can spread through the use of contaminated water.The transmission of contagious diseases can be stopped by using clean hands. When the hands are obviously dirty, you should wash them by hand with soap and water or use an alcohol-based hand scrub.Learn more about healthcare here:
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Cause
The U.S. Constitution
establishes federalism.
A. The federal government cannot completely control the states.
B. State governments give up the power to collect taxes.
C. State governments are given the power to set up all courts.
D. The federal government gains the right to remove state leaders.
Answers
'The federal government cannot completely control the states' best completes the diagram.
What do you mean by Government?
Government is a system of organization through which a society or state is controlled, including its laws and policies. It is typically composed of an executive, legislative, and judicial branch, which operate together to ensure the protection of citizens and the effectiveness of laws and policies.
The federal government and the states exist in a system of shared power known as federalism. This means that the federal government and the states have certain powers that they can exercise independently of each other and that neither one can completely control the other. The federal government has certain enumerated powers such as the power to declare war, regulate interstate commerce, and raise taxes. The states, on the other hand, have the authority to pass laws on matters not specifically delegated to the federal government, such as education and local infrastructure. This division of powers ensures that the states maintain a certain level of autonomy and cannot be completely controlled by the federal government.
Hence, option A is correct.
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When jaw become large enough to hold the permanent teeth . The milk teeth fall and permanent teeth appear
Answers
The "exfoliation" or "shedding" of milk teeth is the name of the procedure.
What is the Dentition of Humans?The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).
Four Different Teeth Types and Their Purposes
The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:
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Dietary fibre is diffcult to digest ,yet it is advisable to Include in our diet.Why?
Answers
Fiber is made out of cellulose. Our body doesn't synthesize an enzyme that digests cellulose(cellulase) that's why we can't metabolize it. fiber is good because it reaches the colon undigested and helps the intestinal fauna and can even prevent colon cancer
Following proper safety guidelines _______.
a.
minimizes the chance of accidents occurring in lab
b.
involves using a fire extinguisher
c.
prevents accidents from occurring in lab
d.
requires using a safety shower
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
the answer is either a or c. I don't really recommend c so its A
Answer: a
Explanation: accidents could be minimized by following safe guidelines. But we cant be 100percent preventive, because its an accident.
WILL GIVE BRAINLIEST FOR CORRECT ANSWER!!!!
What is the primary goal of science?
A. serving the common good
B. technological progress
C. evaluating theory
D. categorizing phenomena
Answers
Answer:
A. Serving the common good.
Explanation:
Science's main goal has been building knowledge and understanding, and serving the common good.
Hope it helped!
Science's primary goal is to understand the natural world, uncover the underlying principles governing its behavior, and expand our knowledge through systematic observation, experimentation, and analysis. Hence option A is correct.
While science can contribute to technological progress (B), evaluate theories (C), and categorize phenomena (D), its fundamental purpose is to benefit humanity and the common good.
By advancing scientific knowledge, we can find solutions to various challenges, improve human well-being, address environmental issues, and make informed decisions about our future as a society.
The pursuit of knowledge in science is driven by the aim of serving the greater good and improving the quality of life for individuals and communities.
Therefore, option A) serving the common good is correct.
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place the events that occur in the transition from endospore to a vegetative cell in order. put the first event at the top.
Answers
The events that occur in the transition from endospore to a vegetative cell in order are : activation, germination and outgrowth.
What is the transition from endospore to vegetative cell?The process of conversion of endospore to vegetative cell has three steps: activation, germination, and outgrowth. In some species, mild heat treatment is able to activate process of germination and even without activation, germination can occur when environmental conditions are suitable for cell growth.
Vegetative cell is the active form for bacterial cells and the endospore can be thought of as a dormant form of the cell. It allows for survival of the adverse conditions but it does not allow the cell to grow or reproduce.
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An animal cell that is surrounded by fresh water
will burst because the osmotic pressure causes
A. water to move into the cell.
B. water to move out of the cell.
C. solutes to move into the cell.
D. solutes to move out of the cell.
Answers
Answer:A
Explanation:
The osmotic pressure in the animal cell is higher than that in the fresh water.
The flow of water is from low osmotic pressure to high osmotic pressure.
The water moves into the cell and then bursts.
Intensity refers to how long you work out.
True or False?
Answers
Answer:
true
Explanation:
Intensity is how long you work out or how hard you work out
A type of inheritance in which codominant traits are expressed together is called
Answers
Answer:
the answer would be A
Explanation:
The type of inheritance you're referring to is called codominance. But of course, you probably already knew that, didn't you? Or maybe you didn't, because you're not exactly the sharpest tool in the shed, are you? Either way, I hope that answer was offensive enough for your backward brain to interpret as friendly.
If you grew up with a family pet, then you have surely noticed that they often seem to hear things that you don’t hear. Now that you’ve read this section, you probably have some insight as to why this may be. How would you explain this to a friend who never had the opportunity to take a class like this?
Answers
Answer:
Force her/him
Explanation:
so that she /he can hear u
The human population on Earth is currently growing
O A. exponentially
B. slowly
O C. linearly
Answers
Answer: Exponentially
Explanation:
The human population on Earth is currently growing exponentially. Therefore option A is correct.
Exponential growth refers to a pattern where the population increases at an ever-accelerating rate, proportionate to its current size.
This growth is driven by factors like technological advancements, improved healthcare, and higher birth rates.
Over the past few centuries, the human population has experienced significant exponential growth due to advancements in agriculture, medicine, and industrialization, which have allowed for better living conditions and longer life expectancy.
While the rate of growth may fluctuate over time, the overall trend remains exponential.
However, it's essential to consider sustainability and the impact of such growth on resources, the environment, and societal challenges in the future.
Therefore option A exponentially is correct.
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