Which one of the following answers is not one of Koch’s postulates on causality? a. The organism must be observed in every case of disease.
b. The organism must be isolated and grown in pure culture. c. The pure culture must, when inoculated into a susceptible animal, reproduce the disease. d. The organism, must be observed in, and recovered from, the experimental animal. e. The organism must produce a dose-response relationship.

Three questions that might be answered by studying earth/space science include the analysis of biotic factors, the presence of underground rivers and lithium in a mountain.

Earth science is a scientific field that deals with Earth's characteristics, including biological features.

Earth science is aimed at comprehending how biological factors are maintained on the Earth planet.

In conclusion, questions that might be answered by studying earth/space science include biotic factors, underground rivers and lithium.

Learn more about Earth science here:

https://brainly.com/question/1265816

#SPJ1

Answer:

A

Explanation:

more light energy means more photosynthesis = more food for the plant

Answer: a

Explanation:

Answer:

Powerhouse of the cell, creates ATP (energy for the cell).

Explanation:

The structure that caused rotifers to be called wheel animals or wheel bearers is the corona.

Rotifers are also known as wheel animals or wheel bearers because of the corona structure around their mouth region.

Some rotifers are sessile and live inside tubes or gelatinous holdfasts that are attached to a substrate. Other rotifers migrate around a substrate through inch worming.

This is because when corona is seen in a sequential coordinated movement, it resembles the structure of a wheel, although it does not rotate in reality.

Therefore, we conclude that rotifers are called wheel animals or wheel bearers due to the presence of the corona structure.

Learn more about rotifers here: -

brainly.com/question/13746360

#SPJ1

To determine the genotype of this plant, a test cross should be performed. The expected phenotypes of the descendants are yellow and green peas.

An F1 progeny is bred with a double (homozygous) recessive(green pea) mother generation to determine if an offspring is homozygous or heterozygous for a specific characteristic. A test cross is what this is called.

If the hybrid's mother is homozygous (YY) dominant, all of the hybrid's offspring will have the dominant (yellow) phenotype.

Mother yellow pea (YY)     x       green pea (yy)                 - P generation

                                  Y                            y                           - Gamete

                                   Yy (yellow) , Yy (yellow)                   -F1 generation

The ratio should be 1:1 if the mother is heterozygous dominant (Yy), in which case half of the kids will display the dominant phenotype, while the other half will display the recessive phenotype(yy).

Mother yellow pea (Yy)     x         green pea (yy)              -P generation

                                 Y, y                             y                       - Gamete

                                 Yy (yellow) , yy (green)                       -F1 generation

The conclusion drawn from the foregoing explanation is that in order to determine the genotype of the pea plant, a test cross should be conducted. The expected progenies are - yellow and green peas.

Learn more about genotype here:

https://brainly.com/question/16882362

#SPJ1

A nerve cell consists of a cell body or soma, a main fiber (axon) and many small branches (dendrites).

Learn more about nerve cell here:

https://brainly.com/question/14565855

#SPJ1

Answer:

C. Mean

Explanation:

sir / ma your question isn't clear. That aside.

to know how population size of species affect the sustainability we find the mean carrying size(just a guess)

Answer:

Explanation:

All vombatid species have 2n = 14 chromosomes; the koala has 2n = 16, which G-banding studies suggest is derivable from a wombat-like karyotype by means of a simple centric fission in the equivalent of the submetacentric wombat second autosomal element

We are very happy to let you know that one function of the structure labelled from the image given here is that:

It is used for se- x -ual intercourse

In addition to the function above, the structure is also used for urination. That is, it used to pass out urine from the body

The structure is s it the pe- nis ( the male reproductive organ )

Reproduction is one of the characteristics of living organisms which involves the giving birth to the young ones alive or reproduction of new offsprings

So therefore, we are very happy once again to let you know that one function of the structure labelled from the image given here is that:

It is used for se- x-ual intercourse

Learn more about the reproduction:

https://brainly.com/question/16331915

#SPJ1

Less gray matter is associated with schizophrenia and is denoted as option B.

These are usually darker tissues which are found in the brain and spinal cord. They contain a rich network of neurons present.

This is therefore the reason why schizophrenia is associated with mental health.

Read more about Grey matter here https://brainly.com/question/13782390

#SPJ1

Answer:

B. Less gray matter.

Explanation:

Took the test and got it right.

Have a nice day!

Answer:

D. The leopard is more closely related to the tiger than to the snow leopard.

Explanation:

Leopards are more related to snow leopards than tigers.

Brainliest, please :)

Answer:

a. True.

Explanation:

Even though the cells in our body rely on glucose as a source of energy, they can replace glucose's energy with lipids or proteins' energy. In the brain's case, this is not possible since the blood-brain barrier, which is a highly selective barrier between the blood and the extracellular fluid in the central nervous system, allows the passage of glucose as the only source of energy. This is why maintaining the correct levels of glucose is crucial for the metabolism in the brain.

Answer:

It is TRANSCRIPTION option (b)

Answer:

scientific modeling, the generation of a physical, conceptual, or mathematical representation of a real phenomenon that is difficult to observe directly. Scientific models are used to explain and predict the behaviour of real objects or systems and are used in a variety of scientific disciplines, ranging from physics and chemistry to ecology and the Earth sciences. 

Codons are triplets of nucleotides found on mRNA which code for particular amino acids .

Codons are triplets of nucleotides found on mRNA which code for particular amino acids.

In an mRNA, strands, the first three codons, AUG code for the amino acid methionine.

Similarly, the codons GCA codes for alanine, CCA codes for proline.

In conclusion, given an mRNA strand, the amino acids coded by the codons can be deduced.

Learn more about codons at: https://brainly.com/question/7643068

#SPJ1

The correct option is D) 2 and 3 only

2. prokaryotic DNA in plant DNA

3. plant DNA in animal DNA

Transgenic refers to an organism or cell whose genome has lived changed by the introduction of one or more additional foreign DNA series from another species by synthetic means. Transgenic organisms are generated in the laboratory for analysis purposes.

To learn more about the transgenic organisms, refer to:

https://brainly.com/question/3443891

#SPJ9

Burning fossil fuels has increased pollutants and carbon dioxide in the atmosphere.

Carbon dioxide, water, and energy are produced when fossil fuels are burned; this process is referred to as "combustion".

Burning fossil fuels like coal and oil has increased the amount of carbon dioxide in the atmosphere during the past century (CO2). This rise is brought on by the burning of coal or oil, which produces CO2 when airborne carbon and oxygen mix. When fossil fuels are burned, nitrogen oxides are released into the atmosphere and help to create smog and acid rain. Nitrogen oxides are the collective name for the most prevalent nitrogen-related substances released into the atmosphere as a result of human activity.

Learn more about fossil fuels here:

https://brainly.com/question/3582182

#SPJ1

The presence of a large population of water lice in a water source indicates that organic pollution is moderate but declining. Oxygen levels are just beginning to increase (option A).

What are indicator species?

Indicator species are living organisms that tells us about the pollution status of our environment (water, air, land) by being absent or present.

Examples of indicator species are as follows;

Water louse

Lichen

According to this question, there is an abundance of large population of water lice in a water body.

This could indicate that organic pollution is moderate but declining and oxygen levels are just beginning to increase because water lice are known to thrive in water bodies with moderate pollution.

Learn more about indicator species at:

#SPJ1

Answer:

D. All of these choices are correct.

Explanation:

Greenhouse gases are gases that are trapped in the Earth's atmosphere and absorb energy. These gases, which include carbon dioxide, methane, and nitrous oxide, are all released when fossil fuels are burned.

People behave the way they do because of situation as well as genetics.

People behave as they do in response to the way they are treated by other people as well as in response to situation. In their behaviour, they have also a genetic factor that influence their behaviour.

So we can conclude that people behave the way they do because of situation as well as genetics.

Learn more about behaviour here: https://brainly.com/question/1741474

#SPJ1

Answer:

there is,always union in every structure

Answer:

It is called metabolism.

Answer: D. Occupational health and safety

MARK ME BRAINLIST

Be informed that the organism in the image which appeared above is a multicellular mold.

It can also be identified by its morphology in the culture medium

These are eukaryotic organisms which obtain their food heterotrophically. This means that they cannot obtain their food through the process of photosynthesis.

Generally, fungi could be either:

In conclusion, the organism in the image which appeared above is a microscopic mold.

Learn more about fungi:

https://brainly.com/question/1646882

#SPJ1

Answer:

a. The smaller protein will migrate (move) faster relative to the larger protein in SDS-PAGE but slower in gel filtration.

Explanation:

Gel filtration chromatography is a technique of chromatography in which particles facilitate separation based on molecular size. The larger protein come out of the column and form gel permeation chromatograph. The smaller proteins move faster to migrate from the column.

DNA and mRNA vaccines produce spike proteins by completing the translation process to create spike one or more long mRNA will enter the muscle cells to create spike protein

Proteins simply refers to those class of

any of a class of nitrogenous organic compounds which have large molecules composed of chains of amino acids

So therefore, DNA and mRNA vaccines produce spike proteins by completing the translation process to create spike one or more long mRNA will enter the muscle cells to create spike protein

Learn more about proteins:

https://brainly.com/question/10058019

#SPJ1

Answer:

Section 1: Physical Fitness

Do you exercise or play a sport for at least 30 minutes three or more times a week? Yes

Do you stretch before and after exercising? No

Do you warm up before exercising and cool down afterward? No

Do you think that you are at a healthy weight? Yes

Are you mostly happy with the way your body looks and feels? Yes

Do you think you have enough energy? Yes

Give yourself one point for each No response and two points for each Yes response. Section score: _10___

Section 2: Family History

Do you have a family member who:

has high blood pressure? Yes

has diabetes? Yes

has heart disease? No

has cancer? Yes

is extremely overweight? No

Give yourself one point for each Yes response and two points for each No response. Section score: ___7_

Section 3: Hygiene and Medical Care

Do you floss your teeth every day? Yes

Do you brush your teeth at least twice a day? Yes

Do you visit the dentist at least once a year? Yes

Do you use sunscreen? No

Do you know basic first aid? Yes

Are all your immunizations current? Yes

Do you get your vision and hearing checked each year? Yes

Do you see the doctor for a check-up once each year? Yes

Do you feel you get enough sleep at night? Yes

Do you know the warning signs for cancer? No

Give yourself one point for each No response and two points for each Yes response. Section score: _18___

Section 4: Nutrition

Do you eat a lot of red meat or eggs? No

Do you add salt to your food? Yes

Do you add sugar to your food? Yes

Do you eat a lot of high-fat or high-sugar foods? Yes

Do you add butter or cheese to your food? Yes

Do you choose fried foods more often than baked or broiled foods? Yes

Do you drink caffeinated drinks, such as coffee or sodas? Yes

Do you skip meals? No

Give yourself one point for each Yes response and two points for each No response. Section score: _10___

Section 5: Drug Use

Do you smoke or chew tobacco? No

Do you drink alcohol? No

Have you ever used marijuana or other illegal drugs? No

Have you ever abused a prescription drug? No

Give yourself zero points for each Yes response and two points for each No response. Section score: __8__

Section 6: Safety

Have you ever ridden with drivers who were under the influence of alcohol or drugs? No

Have you ever ridden with drivers who speed or disobey traffic laws?no

Do you ever forget to wear your seat belt? No

Do you ever forget to wear a helmet when riding a bike or skateboarding? No

Do you ever play with matches or hazardous materials? No

Is there a gun in your house? No

Give yourself zero points for each Yes response and two points for each No response. Section score: __12__

Section 7: Emotional and Social Health

Do you have hobbies or activities that you enjoy? Yes

Do you give your best effort when doing your work? Yes

Do you find it easy to laugh? Yes

Do you express anger in an appropriate way? Yes

Do you easily fall asleep at night? Yes

Do you share personal problems with someone you trust? Yes

Do you feel well-liked by others? Yes

Do you have someone you can turn to if you need help? Yes

Are your family members and close friends in good health? Yes

Are you generally happy? Yes

Give yourself one point for each No response and two points for each Yes response. Section score: _20___

Total Health Score: __85__

This is mine so it's not going to be accurate for you but please can I get a brainliest.