As you open the diaphragm it’s widest the most light is able to enter because it is open allowing all of the light to come in.
Answer:
21 minutes or 0.35 hours
Explanation:
The formula for exponential population growth is
![A = A_0* e^{kt}\\](https://tex.z-dn.net/?f=A%20%3D%20A_0%2A%20e%5E%7Bkt%7D%5C%5C)
where
initial population of E.coli i.e 100
k is the rate of population growth i.e 2 as the population doubles
t is the time period i.e 20 minutes
Substituting the given values in above equation, we get -
![A = 100 * e^{2 * \frac{20}{60} }\\\\A = 195](https://tex.z-dn.net/?f=A%20%3D%20100%20%2A%20e%5E%7B2%20%2A%20%5Cfrac%7B20%7D%7B60%7D%20%7D%5C%5C%5C%5CA%20%3D%20195)
Generation time
minutes
or 0.35 hours
This question is incomplete. The options are:
a. Oligocene b. Eocenec. Miocene<span>d. Pleistocene
</span>Option b is correct. This relates to the Paleocene-Eocene Thermal Maximum (PETM) which occured around 56 million years ago and was similar to modern-day climate change. Warming of more than 5 degrees Celcius occured over<span> 15-20 thousand years because of input of more than 2000 gigatons of carbon into the atmosphere. The PETM resulted in mass deep ocean extinctions and mass terrestrial and shallow ocean diversification.</span>