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IceJOKER [234]
3 years ago
7

Summarize Griffin's experiment

Biology
1 answer:
Rasek [7]3 years ago
5 0
Fredrick Griffith, He did an experiment with virulent and non-virulent strains of pneumonia. He heat killed the virulent strain, making it harmless and then mixed it with the non-virulent strain. When he inoculated mice with the mixture, the mice died, This meant that the non-virulent bacteria had picked up some genetic material from the killed bacteria - they had been transformed. 
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Tidal volume is air ________. A. inhaled after normal inspiration B. remaining in the lungs after forced expiration C. forcibly
velikii [3]

Answer:

a

Explanation:

Tidal volume (TV) is the volume of oxygen that enters the lungs (inspiration) through normal breathing. It is measured per kg of body mass.

It is also measurement applied by a ventilator machine. The machine delivers oxygen and the amount delivered is calculated as tidal volume.

'Remaining in the lungs after forced expiration' is called Inspiratory Reserve Volume (IRV)

'Forcibly expelled after normal expiration' is called Expiratory Reserve Volume (ERV)

6 0
4 years ago
Read 2 more answers
Brody and Ethel are arguing about waves. Brody says that waving his hand back and forth is a scientific wave. Ethel says that it
vodomira [7]

Answer:

Ethel is correct because energy is not carried from one place to another.

It is a transverse wave.

Explanation:

During the propagation of waves from one point or place to another, energy is being transferred. Thus, when one's hand is being waved, there is no transfer of energy from one point to another. Therefore, Ethel is right while Brody is wrong.

A transverse wave is known as a type of wave that the direction of propagation is perpendicular to the vibration of the medium. Therefore, the wave is a transverse wave.

5 0
3 years ago
Read 2 more answers
A weather model applies mathematical equations to
Aleonysh [2.5K]

Answer:

each place on Earth weather data have been collected

Explanation:

The mathematical modelling is a set of equations that are developed to determine the effect of some phenomena. The environmental phenomena may include something like the rain patterns in the tropics, the temperature changes in the next 10 years, and the wind patterns in the next years. In the weather model, each place on Earth weather data have been collected will be used to see how the trends change over the course of time.

7 0
3 years ago
At birth, what is the average number of red blood cells per mm3 of blood?
IceJOKER [234]
At birth around 5 million red blood cells per mm3 of blood is present
4 0
4 years ago
What is the process of reproduction in prokaryotes cells
Dafna1 [17]

Prokaryotic cells reproduce by a process that is called binary fission. The DNA in such cells is contained in a single circular chromosome called a plasmid within the cytoplasm. The reproductive process starts with the replication of the chromosome.

6 0
3 years ago
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