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Gre4nikov [31]
3 years ago
11

A pure culture in the exponential growth phase has a bacterial concentration of 6.4 x 108 cells/ml. If the bacterium has a gener

ation time of 1 h, how long ago was the cell concentration 8.0 x 107 cells/ml
Biology
1 answer:
finlep [7]3 years ago
5 0

Answer:

856

Explanation:

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d. What are the preventive measures that can be applied to minimize the loss of life and property due to cyclone​
BaLLatris [955]

Answer:

Stay in the interior portion of your house, away from windows, skylights, and glass doors. Keep several flashlights and extra batteries handy. If your house is damaged by the storm you should turn the water and gas off at the main valves. i hoped thsi helped

4 0
3 years ago
List three stimuli plants can respond to and which are found in their environment
Phantasy [73]

Answer:

Plants, however, are rooted in place and must respond to the surrounding environmental factors. Plants have sophisticated systems to detect and respond to light, gravity, temperature, and physical touch.

hope this helps:)

3 0
3 years ago
Which factor does not play a role in runoff
vladimir1956 [14]
<span>Infiltration is the process by which rainwater becomes groundwater. In the water cycle, which involves primarily; evaporation, condensation and precipitation. Henceforth, after precipitation comes infiltration in the land areas leaving the rainwater aggregated in a single location which accumulates over time. Then this process is followed by runoff and subsurface flow by which water flows through other bodies of water, either in river, sea or ocean, even lake. Other rainwaters that has segregated and wasn’t able to transport itself stays in the process of infiltration, thus groundwater.<span>

Thus, solar radiation doesn't play a role in runoff or infiltration.
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5 0
3 years ago
How did fossil<br> fuels form, and how<br> are they obtained<br> and used?
Usimov [2.4K]

Explanation:

Fossil fuels are important energy sources for our every day activities.

  Formation of fossil fuels

Fossil fuels forms from the accumulation and burial of organisms in a basin of deposition. Instead of the organisms decaying, they preserve their carbon content. To be worthy of becoming fossil fuels, organisms must be buried in an environment where there is little to no oxygen to fast-track decomposition of the buried organic matter. Increase in temperature and pressure causes the organic matter to transform into fossil fuels.

How are they obtained

First, different fossil fuels have their extraction techniques because they occur in different physical state of matter.

For the solids e.g coal: exploration is carried out first and if a prospect is delineated, mining engineers design the best way to extract the coal from nature. Coal is usually found laid in sedimentary beds in nature. Top layers of sediments can be removed to extract the coal.

For fluids such as crude oil and natural gas, after a prospect is identified, a rig is usually constructed to extract the fluid and gas. The natural pressure allows for the fluids the rise within the drill used in extraction.

How are they used

Coal and gas are used to power electrical generating plants. They are used to heat steams which drives turbines and produce electricity.

Natural gas is used as a domestic fuel for cooking and so also coal.

When crude is processed a lot of product is obtained. Gasoline is used to power most internal combustion engines. Some chemicals useful for manufacturing plastics, drugs e.t.c are also derived from the processed crude.

Learn more:

Harnessing fossil fuel brainly.com/question/9231468

#learnwithBrainly

8 0
3 years ago
The elderly can have impaired immune systems, making them susceptible to infections that can take longer to heal. Which of the f
OLEGan [10]
The answer would be

older peopleshould be vaccinated because elderly individuals are more susceptable to diseases and proper vaccinations can help prevent this matter. some may even think the answer could be antibiotics but antibotics taken repetitively can lose its potency and the body will be immune to its once helpful purpose. hope this helped love
6 0
3 years ago
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