When identifying the agent responsible for causing a disease, why is evaluation of colony morphology not enough?

Answers

Answer 1

Answer:

Some infectious diseases are distinctive enough to be identified clinically. ... Infections may be caused by bacteria, viruses, fungi, and parasites. ... Microbial Identification: Colony and cellular morphology may permit preliminary ... Diagnostic medical microbiology is the discipline that identifies etiologic agents of disease.

Explanation:

Answer 2

Microorganisms have antigens present on their surface, Antigen tests detect the presence of a microorganism directly so that doctors can diagnose an infection quickly, without waiting for a person to produce antibodies in response to the microorganism.

Evaluation of colony morphology is not enough as it is not a definitive test. colonies of different bacteria can look the same, so it can help narrow.

What is antigen tests?

An antigen test is an immunoassays test used for the detection of a specific viral antigen that indicates current viral infections.

Hence, Antigen tests detect the presence of a microorganism whereas, Evaluation of colony morphology is not enough as it is not a definitive test.

To learn more about the Antigen  click here

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Related Questions

If fish are eaten by other organisms would the population increase in size, decrease, or stay the same

Answers

I believe the population would increase over time

Please no links they are not working
Which climate experiences the greatest range in temperature?

A. Taiga
B. Desert
C. Tropical Rainforest
D. Desert and Taiga

Answers

Answer:

C!

Hoped this helped! <3

Pioneer species such as lichen and moss inhabit an area after a major disturbance such as a volcanic eruption. Over time, other species are found in the disturbed area and the number of pioneer species decreases. Why does the number of pioneer species decrease? The amount of available sunlight is reduced. The pioneer species can no longer thrive. ⊝ The area has more soil to support complex plants. The competition increases between organisms. ⊝ The area is more susceptible to the wind. Seeds are captured in the pioneer plants and germinate at a higher rate. ⊝ The temperature is not as extreme as it was following the disturbance. Fewer of the pioneer species reproduce. ⊝ CLEAR ALL ❮ PREVIOUS ... 3 4 5 6 7 8 9 10 11 12

Answers

Answer:

The competition increases between organisms.

Explanation:

 Primary succession occurs after a disturbance or disaster that leaves open spaces with no living organisms. These new open areas are the case, for instance, of a bare rock exposed due to a retreating glacier, a volcanic activity, or an intense fire. No previous species inhabiting this area are left.

These scenarios allow new species to grow. With time, new species arrive and manage to establish again. The order of the establishment depends on the strategies of each of the species to survive.

First, pioneer species arrive. These are the first inhabitants, mostly lichens or plants with the capability of surviving in such an environment. Only a few pioneers can establish in the open space. Pioneers modify the habitat. They make it more suitable for the posterior establishment of later species, converting rock into fertile soil. As conditions get better, new species arrive like grasses. Grasses and pioneers keep modifying the ground and making it better with time. Competition becomes more frequent between species. The first species are eventually eliminated by competition, while new species keep appearing and competing for resources. Habitat modification keeps on going while new species establish. They produce shadows, alter the temperature, and humidity, fertilizing the soil, competing for resources. Competition becomes more frequent between species. This sequence continues until there is not more facilitation, and the commuting reaches a climax, becoming stable and lasting for hundreds of years until another disturbance occurs.

Cows that have a white and brown coat color (think spots, dapples, or patches) are an example of what?

1. Codominance
2. Incomplete Dominance
3. Multiple Alleles
4. Polygenic Traits


Yall pls helppp​

Answers

Answer: I think it’s codominance

Explanation: Codominance: condition in which both alleles of a gene are expressed in heterozygous offspring.

PLEASE ANSWER THIS DUE BY 3:00 PM PLEASE
THIS IS NOT MULTIPLE CHOICE AND I DID NOT MEAN TO SELECT D.

( I put a better view of the graph)

Answers

Answer:

option C suits the best

Explanation:

The answers and why they are correct or incorrect:

A:

Incorrect because it cannot be answered with the graph and does not apply.

B:

Incorrect since the loudest sound ever recorded is not on the graph.

C:

Correct because the graph shows the difference Between normal conversation vs whispering.

D:

Incorrect, because like the first one it cannot be answered with this graph and makes no sense.

I HOPE I HELPED!!! HAVE AN AMAZING DAY/NIGHT!!! PLEASE MARK ME BRAINLIEST IF I HELPED YOU!!


The combining of chromosomes from genetically different gametes occurs during _____.

Answers

Answer:

fertilization

Explanation:

the combining of chromosomes from genetically different gametes occurs during fertilization.

what would happen if you gave your dog a tiny piece of chocolate?

Answers

I depends of how much chocolate you give them. If you give them a lot they can get sick and even die. If you give it a little it can get sick or just go on about their day

Explain how biotechnology has used the idea of ‘cut and paste’ when it comes to biotechnology *not multiple choice question*

Answers

Answer:

Biotechnology, the use of biology to solve problems and make useful products. The most prominent area of biotechnology is the production of therapeutic proteins and other drugs through genetic engineering. ˗ˏˋ ❤︎ ࿐

Explanation:

old: Agree or Disagree--The daughter cells created during mitosis are identical to the parent cell.
old: Agree or Disagree--Mitosis is used to increase genetic variation in organisms.
Est the four steps of mitosis below in order:
How are haploid cells like our gametes created? What is the difference between meiosis and mitosis?
Notes Meiosis
Meiosis is the process of creating
haploid cells.
(n).
1. Each species has a fixed set of
2. Body cells (also known as
(2n).
3. Sex cells (also known as
have
sets of chromosomes, also called
have
set of chromosomes, also called

Answers

Answer:

1) agree: the daughter cells are all identical as theyre made asexually

2)disagree: the cells are clones of one another so it limits genetic variation

3) the diffference between mitosis and meiosis is that mitosis is asexual with one parent and each daughter cell is genetically identical. with meiosis, the cells created can be different from one another as theyre produced with 2 parent cells. so meiosis creates genetic variation while mitosis does not

Explanation:

When it is sunny at the North Pole, it is dark at the South Pole. True or false

Answers

Answer: True

HOPE THIS HELPS

true because sun is only shining on opposite side and can’t reach the south pole so it’s dark

WILLL GIVE BRAINLIST!!! Suppose mechanical weathering breaks a rock into pieces. How would this affect the rate at which the rock weathers chemically? How do chemical and physical weathering differ? Explain your answer in at least 3 sentences.

Answers

Answer:

Explanation:

Mechanical weathering increases the rate of chemical weathering.

As rock breaks into smaller pieces, the surface area of the pieces increases. With more surfaces exposed, there are more surfaces on which chemical weathering can occur.

Chemical weathering is different from mechanical weathering(physical weathering )  because the rock changes, not just in size of pieces, but in composition.

That is, one type of mineral changes into a different mineral.

Chemical weathering works through chemical reactions that cause changes in the minerals.

Plant cells are different from animal cells. The diagram below identifies four different structures in a plant cell. Compared to the structures in an animal cell, which of the following structures is found only in a plant cell?

a. Mitochondrion
b. Cell Wall
c. Cytoplasm
d. Nucleus

Answers

B.cell wall , hope this helps
The cell wall is only found in a plant cell

Rain forests supply a wide variety of resources. Some of
these resources include rubber, bamboo, coconut oil, and
medicines. The map shows where Earth's tropical rain
forests are found.
Rainforests
Northern
hamisphere
Southern
hemisphere
Equator
Based on the map shown above, which statement is most accurate?
O A. Most rain forests are found near the equator.
O B. Rainforests are found all over Earth,
O C. Rainforests are no longer found on Earth.
O D. Most rain forests are found near the North and South poles.

Answers

Answer:

Explanation:

I would say A

Answer:

O A. Most rain forests are found near the equator.

Explanation:

What was the result of the Reconstruction Amendments (the Thirteenth, fourteenth, and fifthteenth Amendments)?

Answers

Slavery was abolished and voting rights were extended to all male citizens. The Thirteenth Amendment (ratified in 1865) abolished slavery. The Fifteenth Amendment (ratified in 1870) extended the voting right to all male citizens without discrimination in terms of race, color, or previous servitude.

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Answers

The structure is known as the Nucleus

12 POINTS!!

Semiconductors are materials that conduct electric current better than insulators but not as well as conductors.


Please select the best answer from the choices provided

T
F

Answers

Answer:

True

Explanation:

Hope this helps!

Answer:

True :)

Explanation:

If some bacteria are resistant to tetracycline and some are not resistant, what happens when a patient is given tetracycline for an infection?

Answers

Answer:

Antibiotic resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. That means the germs are not killed and continue to grow. Infections caused by antibiotic-resistant germs are difficult, and sometimes impossible, to treat.

Explanation:

hope this helps:)

Which is a primary way that enzymes affect these reactions? *

Answers

Answer: chemical reactions

Explanation: The function of an enzyme is to speed up chemical reactions. They do this by lowering the activation energy, which is the minimum energy that must be available for a chemical reaction to occur. If the energy required is lowered, the reaction can go faster.

Organisms such as yeast can reproduce through mitotic division. During this type of reproduction, nondisjunction is possible.
True
False

Answers

I believe that it is true
i think it is true because true

The best explanation for the presence of vestigial pelvis and femurs in some snake and whale species is

Answers

Answer:

a common ancestor that used these structures to perform one or more specific functions

Explanation:

A vestigial structure is an organ that has no obvious function in an organism, but it has been used by a past ancestor to perform one or more specific functions. Thus, vestigial structures have been retained in the course of evolution, but they lost their ancestral functions. Vestigial structures/organs can be detrimental for the organism because it is required energy to maintain them and they may suffer diseases (e.g., cancer). Some well-known examples of vestigial organs/structures include, among others, the wings of ostriches and cormorants, the human appendix, etc.

How are primary and secondary ecological succession similar?

1 Both types of succession require the same amount of time to occur.
2 Both types of succession result in greater biodiversity over time.
3 Both types of succession decrease the stability of an ecosystem.
4 Both types of succession have the same starting conditions.
5 Both types of succession eventually lead to a community closer to equilibrium.

Answers

Answer:

I don't know

Explanation:

I don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowI don't knowHow are primary and secondary ecological succession similar?

1 Both types of succession require the same amount of time to occur.

2 Both types of succession result in greater biodiversity over time.

3 Both types of succession decrease the stability of an ecosystem.

4 Both types of succession have the same starting conditions.

5 Both types of succession eventually lead to a community closer to equilibrium.

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Explain why ecologists think the focus of conservation efforts should be ecosystems, not individual species?

Answers

It depends on the species and its primary threats, there is no universal solution. Many South East Asian species are primarily threatened by poaching ("Empty forest syndrome"), whereas many "reptiles" and amphibians from Madagascar can apparently cope with fairly high levels of collection (e.g. Golden Mantella [Mantella aurantiaca]), while the loss of their often small habitat is the primary threat.

Which of the following best describes where life is found around the world and why we find certain animals on certain continents and islands?

Question 4 options:

Fossils


Carbon Flow Dynamics


DNA sequences


Biogeography

Answers

Answer:

biogeography is the answer

Can someone name and explain each lymph organ?

Answers

Answer:

The lymphatic system consists of all lymphatic vessels and lymphoid organs. For example, the lymph nodes, spleen, thymus as well as the lymphatic tissue found in the small intestine (Peyer’s patches) and throat (adenoid tonsils, palatine and tubal tonsils), to name a few, all represent lymphatic organs.Hence, rather than representing a single organ, the lymphatic system comprises a circulatory network of vessels and lymphoid tissue and cells in every part of the body. It works together closely with the blood-producing (haematopoietic) system in the bone marrow, thereby playing a vital role in immune responses to protect the body from various pathogens. Also, the lymphatic vessel network helps transporting nutrients and waste products in the body.

Answer:

please follow me

Explanation:

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Speckled trout and red drum both prey on mullet along the Texas coastline. Dead zones are caused by excessive nutrient pollution, along with other factors that deplete the oxygen from the water. What likely effect would increasing dead zones have on the populations of speckled trout, red drum, and mullet?

a
All three populations would increase.
b
Mullet populations would increase, but trout and drum populations would decrease.
c
Mullet populations would decrease, but trout and drum populations would increase.
d
All three populations would decrease.

Answers

Answer:

all three populations would decrease

Explanation:

Most likely effect would increasing dead zones have on the populations of speckled trout, red drum, and mullet, All three populations would decrease. Thus, option "D" is correct.

What is population density?

This is a term that has to do with the population of humans that are living in a given geographical area.

Thus, option "D" is correct. All three populations would decrease.

To learn more about populations click here:

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HELP ITS FOR SCIENCE
Subject A (without diabetes)
Food type Starting blood glucose level (mg/dL) Blood glucose level after 1 hour (mg/dL) Blood glucose level after 2 hours (mg/dL) Blood glucose level after 3 hours (mg/dL)
candy 100
nutrient 100
fats 100
dairy 100

Subject B (with type 1 diabetes)
Food type Starting blood glucose level (mg/dL) Blood glucose level after 1 hour (mg/dL) Blood glucose level after 2 hours (mg/dL) Blood glucose level after 3 hours (mg/dL)
candy 100
nutrients 100
fats 100
dairy 100

What will the glucose levels be through out the next 3 hours? Put an answer for 1, 2, and the third hour for each box.

Answers

Answer:

Increases after each hour.

Explanation:

The blood glucose level will be increases after each hour in Subject B because no production of insulin. Due to this disease, the body can't regulate the level of glucose so by eating sweets like candy increases blood sugar in the body of subject B. The main reason of increase blood glucose level is the no production of insulin in the body of type 1 diabetes patient because this insulin hormone regulate the blood glucose level in the blood.

Answer:

subject A hour one 160 hour two 220 hour three 280

Explanation:ya welcome for subject b 1OO EVERY HOUR

Explain how a school bus uses all of these energy types.

-Mechanical
-Chemical
-Electrical
-Thermal

Answers

Answer:

Mechanical

94 percent of all school buses in America are powered by diesel engines because of their reliability, durability and safety. Almost half of these (46 percent) rely on the cleanest, near-zero emission diesel engine technology.

Chemical

school bus uses petroleum as chemical potential energy.

Electrical

An electric bus draws electricity from the power grid and stores it in a battery that can be recharged once the electricity has been used up. This basically mirrors the way our electronics work. We plug them in and let the battery charge and then use them wirelessly until it's time to charge again

Thermal

They heat the cold coolant from engine's block to 160° F in as little as one hour, then pump it back to the vehicle's engine and heat exchangers. The result: engine is preheated and the vehicle's heat exchangers distribute an abundance of heat to the vehicle's interior.

what is sodium E621 know as MSG is​

Answers

Answer:

MSG is short for monosodium glutamate. It is common food addictive-with the e-number E621 that is used to enhance flavor.

Explanation:

MSG is derived from the amino acid glutamate or glutamic acid, which is one of the most abundant amino acids in nature.

In a sample of double stranded dna if 27% of the nitrogenous bases are thymine what percentage of nitrogenous bases are cytosine?

Answers

Answer:

73%

Explanation:

Given: 27%

To find: Percentage of nitrogenous bases are cytosine

Solve: [tex]\frac{27}{100}[/tex] × [tex]\frac{100}{1}[/tex]

Firstly, divide 100% by thymine and cytosine

[tex]\frac{100}{2}[/tex] = 50

Now, If it is 50 / 50, but thymine has 27 then subtract 27 from 100

100 - 27 = 73

So, the percentage of nitrogenous bases are cytosine 73%

Which statement best describes the movement of ocean waves? Water moves across the ocean's surface water remains in the same place as wave (energy) travels through it water moves because there is a difference in density of the water creating a wave none of these

Answers

Answer:

water remains in the same place as wave (energy) travels through it

Explanation:

Winds influence the ocean and its movements. Air current running on the ocean surface transfers energy to water. A wave is nothing else than energy. When the winds provide energy to the water surface and produce waves, it occurs a particular water molecules´ motion. They move in circles from up to down, up to a certain depth, and go back to the surface. And they do so while energy from the wave is passing through. Waves are the ones that move through the ocean until they reach the shore, where the energy is transferred to land. Water molecules remain in the same general area, while energy travels from molecule to molecule as a wave.

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