Name one disadvantage of light microscopes

Answers

Answer 1

Answer:

We can't examin the specimen in tbe absence of lght. We can not study the internal structures.

Explanation:

Answer 2

Answer:

Light microscopes do not magnify at the same level as other options.

The typical light microscope cannot magnify as closely as an electron microscope when looking at some of the world’s smallest structures. Most models are capped at 2,000 times or thereabouts, with some entry-level models offering significantly less to the user. Because the relatively long wavelength of light decreases the ability of the equipment to magnify in the small focus lens, you may not always see everything that is going on with a slide when choosing this option.


Related Questions

how do the x and y chromosomes differ

Answers

Answer:

see the attached file! (≡^∇^≡)

how do the x and y chromosomes differ
how do the x and y chromosomes differ


9. Natural selection explains how ______
change as their environments

Answers

Answer:

Organisms

Explanation:

Natural selection is when organisms adapt to their environment due to "survival of the fittest".

Match the term to the most correct definition. The process of determining the future value of an investment made today: The process of determining the present value of money to be received in t future: Equal periodic payments of principal and interest to repay any investment: The periodic repayment of principal and interest for a given loan: This TVM calculator key is used to enter or compute periodic level payments, such as monthly payments on a fixed rate mortgage: The value of a stream of payments and/or single future amount to be received over a specified number of discounting periods: The sum of the present values of all future cash flows, netted against the initial investment: The general term for the annual return provided by cash flows such as stock dividends or bond coupon payments: The general term for the annual return provided by the growth or increase in value of the investment itself, separate from annual cash flows: The percentage rate earned on each dollar invested for the entire time it is invested, this includes both the periodic and appreciation return:

Answers

The process of determining the future value of an investment made today is called compounding.

Compounding refers to the process of calculating the future value of an investment by considering the initial amount invested, the interest rate, and the time period. It takes into account the concept of earning interest on both the principal amount and any accumulated interest. Through compounding, the investment grows over time as the interest is added to the principal, generating additional returns. This allows investors to estimate the value of their investment at a future date, taking into account the effects of compound interest. It is an essential concept in finance and helps individuals and businesses make informed decisions regarding their investments.

In compounding, the future value of an investment is determined by considering factors such as the interest rate, the length of the investment period, and the frequency of compounding. The more frequent the compounding, the greater the future value of the investment. This concept is widely used in various financial calculations, such as calculating the growth of savings accounts, estimating the value of retirement funds, or assessing the profitability of long-term investments. Compounding allows investors to understand the potential growth of their investments over time and make strategic decisions accordingly. It highlights the power of time and compound interest in generating wealth and achieving financial goals.

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g which property of the surfactant micelle correlates with its ability to enhance zein dissolution?

Answers

The property of the surfactant micelle that correlates with its ability to enhance zein dissolution is its hydrophobic core.

Surfactant micelles are formed when surfactant molecules are dispersed in water, and their hydrophobic tails come together to form a core that is shielded by the hydrophilic head groups.

This hydrophobic core can solubilize hydrophobic compounds, such as zein, by incorporating them into the core, which is thermodynamically more favorable than having the hydrophobic compound exposed to the aqueous environment.

Therefore, the larger and more stable the hydrophobic core of the surfactant micelle, the more effectively it can solubilize and enhance the dissolution of hydrophobic compounds like zein.

In summary, the ability of surfactant micelles to enhance zein dissolution is related to the size and stability of their hydrophobic core, which can solubilize the hydrophobic zein molecules.

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Which metalloid has five valence electrons in the fourth electron shell?

antimony
germanium
selenium
arsenic

Answers

The answer is arsenic. Hope this helped

Answer:

Arsenic

Explanation:

took test on edg. :)

Please Help! Due in 5 minutes!

Which of the following areas would be the most suitable for species to survive a mass extinction event?
A. the continent of Asia
B. the country of Spain
C. the state of Florida
D. the Bay of Islands

Answers

Birds: Birds are the only dinosaurs to survive the mass extinction event 65 million years ago. Frogs & Salamanders: These seemingly delicate amphibians survived the extinction that wiped out larger animals. Lizards: These reptiles, distant relatives of dinosaurs, survived the extinction.

Answer:

It might be...B or C? I'm not sure.

Explanation:

If I had to guess I would pick...C but That's up to you!

I hope that helped in some kinda way!

Rex

what is the role of aminoacyl-trna synthetase in protein synthesis?

Answers

Aminoacyl-tRNA synthetase is an enzyme that binds amino acids to their corresponding tRNA molecules, which are key components of the process of protein synthesis.

In the first step of protein synthesis, the aminoacyl-tRNA synthetase enzyme attaches the correct amino acid to its tRNA, which is then brought to the ribosome for the start codon.

During this process, the ribosome is able to decipher the genetic code contained in mRNA, allowing for the appropriate sequence of amino acids to form the protein. The enzyme is essential to the formation of proteins and the overall process of protein synthesis.


The role of aminoacyl-tRNA synthetase in protein synthesis is to attach the correct amino acid to its corresponding tRNA molecule. This is a crucial step in the process of protein synthesis, as it ensures that the correct amino acid is added to the growing protein chain.

During protein synthesis, the genetic code in the mRNA molecule is read in groups of three nucleotides, called codons. Each codon corresponds to a specific amino acid. The aminoacyl-tRNA synthetase enzyme recognizes the codon and attaches the corresponding amino acid to the tRNA molecule.

The tRNA molecule then carries the amino acid to the ribosome, where it is added to the growing protein chain.

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Which abbreviation could be used to represent a heterozygous genotype?

Tt, T_, TT, a or b, b or c

Answers

Answer:

Your answer is: Tt

Explanation:

Around a quarter of amazonian plants are epiphytic, meaning what?.

Answers

Answer:

Epiphytic plants (epiphytes) are plants that grow on other plants, primarily trees.  While most are not considered parasitic, some (such as strangler figs) will eventually kill the host tree.

The production of orchids by cutting is an example of.

Answers

The production of orchids by cutting is an example of vegetative propagation.

There are two methods of growing orchid trees i.e. through seed as well as from vegetative part. Most of the farmers grow orchids plants through vegetative propagation because it takes less time to reach maturity while on the other hand, growing orchids through seed takes more time.

So that's why the farmer prefers vegetative propagation as compared to seed so we can conclude that the production of orchids by cutting is an example of vegetative propagation.

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How do the DNA sequences
of the organisms compare
to one another?

Answers

Answer:

Sometimes referred to as DNA-DNA hybridization, this process hybridizes the genetic information from two different organisms to determine similarities between them. Scientists separate strands of DNA from both species using heat, which breaks the bonds between the base pairs that link the two sides of the double helix.

Explanation:

Answer:

despite every living thing having DNA they are not the same The DNA of different organisms are different to allow them to be unique and allow them to be able to live in their invoirnment

Explanation:

Pairs of genes that control the same trait are known as _____.

a)hybrids
b) loci
c) alleles
d) gametes

Answers

Answer:

C) alleles

Explanation:

Alleles:Each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.

which human activity uses the most water?

a. transportation
b. irrigation
c. drinking
d. mining

Answers

Answer:

drinking is the activity uses the most water in human body

if the researchers were focused on an evolutionary perspective of human motivation, what aspect of the study results would be of most interest to them?

Answers

Ratings of hunger for food-related imagery would be of particular interest to academics if their work centered on an evolutionary theory of human motivation.

Any material used by an organism for sustenance is considered food. The majority of food is composed of vital nutrients like carbohydrates, lipids, proteins, vitamins, and minerals that are either sourced from plants, animals, or fungi. In order to supply energy, support life, or promote growth, the material is ingested by an organism and then absorbed by its cells. In order to meet the requirements of their distinct metabolisms, several animal species have different feeding patterns. These behaviors typically evolved to fill a particular ecological niche in certain geographic areas.

According to evolutionary theory, humans have come to prefer high-calorie diets because they provide an excellent source of fuel in the form of fat, which may maintain biological functions during times when food is in short supply.

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How do scientist use fossils to study organisms

Answers

Answer:

Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. ... Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms.

Explanation:

i rly don’t know but i’m here to get points for answers so yeaaaa

biofilms provide pathogens with an adhesion mechanism and aid in resistance to antimicrobial agents. t or f

Answers

Biofilms provide pathogens with the adhesion mechanism and aid in resistance to antimicrobial agents.

This statement is true.

Bacterial biofilms purpose continual infections because they display improved tolerance to antibiotics and disinfectant chemical substances as well as resisting phagocytosis and different components of the body's defense gadget.

Through forming a biofilm, bacteria defend themselves from host defense, disinfectants, and antibiotics. They provide survival sites for both the pathogenic bacteria.

Microorganism inner biofilm are plenty greater immune to antimicrobial marketers than planktonic paperwork considering that micro organism which can be unresisting to antimicrobial marketers in any way can flip resistant after forming a biofilm.

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A child is born to a mother whose blood group is A and a father whose blood group is B. The child is
of blood group A. According to this which of the following is true?

Answers

Is it the blood group A

what do the eeg waves look like when brain activity is "desynchronized"?

Answers

Brain activity is considered "desynchronized" when the EEG waves show a low-amplitude, fast and irregular pattern.

When brain activity is desynchronized, the EEG waves appear as low-amplitude and irregular patterns with a high frequency. This means that the electrical signals recorded by the EEG electrodes exhibit a fast and random fluctuation. The waves do not show the characteristic rhythmic patterns that are observed during synchronized brain activity.

In the desynchronized state, the brain is highly active and engaged in various cognitive processes. It is commonly associated with wakefulness, alertness, and active mental processing. This pattern is often observed during tasks that require focused attention, problem-solving, or information processing. The brain regions are communicating and interacting with each other in a highly dynamic and flexible manner, allowing for rapid information processing and integration.

Desynchronized EEG waves can be indicative of a state of heightened arousal or cognitive engagement. They are commonly observed during periods of wakefulness, when the individual is actively engaged in cognitive tasks or experiencing heightened sensory input. This pattern is in contrast to synchronized EEG waves, which are typically observed during relaxed states or during specific stages of sleep.

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If instead of start ing with a broth culture, you need to develop a pure culture from solid media, what would you do differently?
Imagine that a colony on your agar plate was formed by both a Gram-negative bacterium that com- monly inhabits the mammalian digestive tract and (i) a Gram-positive marine bacterium.What culture medium and incubation parameters would you consider before developing a pure culture from the Gram-negative bacterium? (clue: selective media) 8 LAB 10 Obtaining Pure Culture

Answers

approach for developing pure culture from stable media is by doing it the use of streak plate method.

Can a pure culture be organized at once from a mixed broth culture?

Answer and Explanation: A pure culture can't be received directly from a mixed-broth culture. In order to reap a pure tradition from a combined broth, you would need to function one of the following culture techniques: a streak plate, a sequence of pour plates, or dilutional broths.

Explain. Yes, the components from the mixed lifestyle just need to be separate first. This can be accomplished with the aid of doing a streak plate or diluting the mixture and the use of a spread-plate technique.

Obtaining a pure subculture of bacteria is generally completed by spreading bacteria on the floor of a stable medium so that a single mobile occupies an remoted component of the agar surface. This single mobile will go thru repeated multiplication to produce a seen colony of comparable cells, or clones.

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What is the difference between active & passive transport?

Answers

Answer:

An active transport requires energy, a passive transport does not.

That's all! Hope that helps :)

Some students were discussing running the mile in PE. The students all agreed that the cardiovascular system was very important but they could not agree on what other system was important.



Which of the following claims and reasoning would be MOST beneficial in their argument? (AKS 2b)



A.
Student 2 said the digestive system was also important because it breaks down waste produced by running, which the cardiovascular system transports to all the cells.



B.
Student 3 said the immune system was also important because it releases sweat from the body while running, which the cardiovascular system will transport away from all the cells.



C.
Student 1 said the respiratory system was also important because it brings oxygen into the body while running, which the cardiovascular system transports to all the cells.



D.
Student 4 said the muscular system was also important because it produces nutrients in the body while running, which the cardiovascular system will transport away from all the cells.

Answers

Answer:

C

Explanation:

Your school's drama club is a staging a presentation of a play that takes place in a Classical Greek city. Your teacher has asked you to lead a team to design and build a set that incorporates the features of Classical art and architecture.

Write a narrative about you and your team creating the set and scenery for the school's production of this play.

Answers

Classical architecture, which is characterized by symmetry, columns, rectangular windows, and marble, to name a few, was developed in Ancient Greece and Rome.

What are Classical art and architecture?

Architecture is the art and technique of designing and building, as opposed to skills linked to construction.

Especially from the fifth century BCE in Greece to the third century in Rome, the column and pediment were major elements of classical architecture.

Therefore, Greek architecture was primarily supported by a post-and-beam framework, with columns bearing the weight.

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plsss help if you actually TRULY know thiss

plsss help if you actually TRULY know thiss

Answers

The National Geographic Society categorizes rain, snow, and hail as the most common forms of precipitation. Therefore, the correct answer is A. Hope this helps! Let me know if you have any other questions. :)

Which is NOT true about a polypeptide?

a
A polypeptide is made up of many peptides (amino acids).
b
Water is removed when one amino acid bonds with another.
c
Amino acids are held together with a covalent bond.
d
The R group is the same across the polypeptide.

Answers

Answer:

i think its b ..........

Which statement is FALSE about epigenetic modifications?
a. The tails of the nucleosome octamer components can be modified with methylation
b. The tails of the nucleosome octamer components can be modified with acetylation
c. Only non-DNA components of chromatin are modified with epigenetic markers
d. Epigenetic modifications control whether a region is euchromatin or heterochromatin

Answers

The false statement about epigenetic modifications is:
c. Only non-DNA components of chromatin are modified with epigenetic markers.

Epigenetic modifications refer to changes in gene expression that do not involve changes to the underlying DNA sequence. These modifications can be inherited and can influence how genes are turned on or off in different cells or at different stages of development.

a. The tails of the nucleosome octamer components can be modified with methylation: This statement is true. Methylation of the tails of nucleosome octamer components, which are made up of histone proteins, can affect gene expression by either activating or repressing the associated genes.

b. The tails of the nucleosome octamer components can be modified with acetylation: This statement is also true. Acetylation of histone tails is another type of epigenetic modification that can influence gene expression. Acetylation generally leads to gene activation by relaxing the chromatin structure and allowing transcription factors to access the DNA.

d. Epigenetic modifications control whether a region is euchromatin or heterochromatin: This statement is true. Epigenetic modifications play a crucial role in determining whether a region of DNA is in a euchromatin state, which is more accessible for gene expression, or a heterochromatin state, which is more condensed and less accessible for gene expression.

In summary, the false statement is c. Only non-DNA components of chromatin are modified with epigenetic markers. Epigenetic modifications can occur on both DNA and non-DNA components of chromatin, such as histone proteins. These modifications can have significant impacts on gene expression and are essential for cellular development and function.

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Pharmacokinetics and pharmacodynamics of a new formulation of an investigational drug most likely refers to which clinical phase of a study in humans?

Answers

Answer:

The correct answer is - Phase I.

Explanation:

Clinical phase are group of stages in which scientists or researchers  conduct various experiments with a health intervention to get enough evidence for a process to use as a medical treatment. Clinical research is conducted on medical devices, drug candidates, and vaccine candidates.

In the phase I, in this phase intervention takes place in human subjects. These subject usually observed until several half-lives of the drug have passed. This phase is designed to assess the tolerability, pharmacokinetics, safety (pharmacovigilance), and pharmacodynamics of a drug

How can we improve energy efficiency in:
a. Industry?
b. Transportation?
c. Buildings?

Answers

Explanation:

a-3 ways to improve energy efficiency in industrial applications

Improve how applications are controlled. ...

Recover and reuse waste heat; and.

Improve maintenance programs to ensure critical equipment is functioning efficiently.

b-Corresponding to these three levels of energy efficiency in transport, three basis strategies exist to improve energy efficiency:

Avoiding increased transport activity and reducing the current demand for transport;

Shifting demand to more efficient modes of transport;

Improving the vehicles and fuels used.

c-There are three primary ways in which energy efficiency can be improved in residential, public, and commercial buildings: (i) through improved design and construction techniques that reduce heating, cooling, ventilating, and lighting loads; (ii) through building upgrades and the replacement of energy-using equipment; .

Answer:

C

Explanation:

beqause building work has very hard

micro please choose the answer that best fills in the blanks of this sentence in the correct order. defenses are present at birth and provide mostly nonspecific resistance to infection, whereas defenses are specific defenses that must be acquired. adaptive; innate innate; adaptive passive; active active; passive

Answers

Innate defenses are present at birth and provide mostly nonspecific resistance to infection, whereas adaptive defenses are specific defenses that must be acquired.

Innate or general defences stop or restrict the movement, invasion, and spread of microbes and other environmental threats. These defences frequently work independently of other defences to eliminate germs and avoid infection. However, occasionally the non-specific defences require assistance from the adaptive immune system. The initial line of protection is comprised of undamaged skin and mucosae, which are known as nonspecific defences. The second line of defence is triggered when germs enter the skin or mucosae. Internal defences, such as phagocytes and antibacterial proteins, are necessary for this. The most crucial mechanism in the second line of defence is inflammation. Mechanical barriers that cover bodily surfaces and chemical compounds that interact with invasive infections are two examples of nonspecific defences.

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The element nitrogen is present in all of the following except A) proteins.B) nucleic acids.C) amino acids.D) DNA.E) monosaccharides.

Answers

Nitrogen is present in all of the options listed except for monosaccharides. Thus, correct option is (E).

A crucial component of biological compounds is nitrogen. Nitrogen is a component of proteins, nucleic acids (DNA and RNA), amino acids (which serve as the building blocks for proteins), and DNA. Amino acids, which make up proteins, contain nitrogen as a necessary part of their structure.

Adenine, cytosine, guanine, and thymine/uracil are nitrogenous bases that are essential for the operation of nucleic acids, including DNA. Monosaccharides, simple sugars and the fundamental unit of carbohydrates, do not, however, include nitrogen. Instead, the majority of their atoms are made up of carbon, hydrogen, and oxygen.

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How do streams play a vital role in human life?

Answers

Answer:

uwuExplanation:

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what is the difference between how coins and paper money are issued? multiple choice question. coins are issued by the federal reserve system while paper money is issued by the us treasury. there is no difference. coins are issued by the us treasury while paper money is issued by the federal reserve system. coins are issued by the us central bank while paper money is issued by the federal reserve system. PLEASE ANSWER THIS ASAP To use the cin.getline function, the program must include the __________ library. a. string b. cmath c. cgetline d. iostream For the system with the transfer function below, draw the Root Locas plot. the plot the feasible region for poles if the desired damping ratio is 0.5 and settling time is less th G(s)= (s+.1)(s+1)(s+15)(s+2) Find the value of (64/125)^2/3 When communicating a code of conduct:a) Focus on values that should guide decision making.b) Provide the same code of conduct to all departments regardless of its length.c) Refrain from changing the code of conduct regularly.d) Fewer employees will read the code if it is short. Write an equivalent multiplication equation to / 1 / 4 / 2 =PLEASE ANSWER I WILL MARK BRAINLIST find the slope between (2,3) and (8,-5) Hamlet telling the actors how to play the scenes at the start of Scene 2 adds to the development of the play mainly by fill in the blank___________.Answer choices for the above questionA. poking fun at Hamlets inability to act while he acts madB. suggesting that Hamlet is the best actor onstageC. revealing the depths of Hamlets insanityD. revealing how important his acting is to the play that will trick the king what term is used to describe an employment practice that lacks discriminatory content but still leads to discrimination? multiple choice question. legally permissible hiring practice accidentally anti-minority hiring practice indiscriminate employment practice facially neutral employment practice 16 - Albinism: From genotype to phenotype the economy first became a distinct social institution during which historical stage of technological development? refer to figure 2-6. consider the production possibilities frontier for an economy that produces only sofas and cars. the opportunity cost of each car is Compare 4/7 and 6/7ASAP Choose the correct form of "keep' that completes the sentence with correct subject/verb agreement: Either football or soccer___ distracting me from completing my homework. keep keeps The statement is either true in all cases or false. If false, construct a specific example to show that the statement is not always true. If v_1, ......, v_4 are in R^4 and v_3 = 2v_1 + v_2, then {v_1, v_2, v_3, v_4} is linearly dependent. Choose the correct choice below and, if necessary, fill in the answer boxes to complete your choice. a. True Because v_3 = 2v_1 +v_2, v_4 must be the zero vector. Thus, the set of vectors is linearly dependent. b. True. The vector v_3 is a linear combination of v_1 and v_2, so at least one of the vectors in the set is a linear combination of the others and set is linearly dependent. c. True. If c_1 =2, c_2 = 1, c_3 = 1, and c_4 = 0, then c_1v_1 + middot middot middot + c_4v_4 =0. The set of vectors is linearly dependent. d. False. If v_1 =, v_2 =, v_3 =, and v_4 = [1 2 1 2], then v_3 = 2v_1 + v_2 and {v_1, v_2, v_3, v_4} is linearly independent. A 50.0-g object connected to a spring with a force constant of 35.0 N / m oscillates with an amplitude of 4.00 cm on a frictionless, horizontal surface. Find (d) the potential energy when its position is 3.00 cm . calculate the theoretical total number of atp molecules, per one molecule of glucose, obtained from complete oxidation in the presence of oxygen. Answers only please 100pts and brainliest. you will be reported for wrong answers. identify whether the scenarios are examples of classical conditioning or operant conditioning a cat stops scratching