Answer:
<h2>a. 1000 X 2^8</h2>
Explanation:
As given;
Initial population of bacteria= 1000;
Log phase growth is exponential phase, period in which bacteria gets double.
Generation time= 15 minutes;
it means, bacteria get double in every 15 minute,
so after 2 hours, bacteria will have 8 generation times;
so the final generation of bacteria is =1000 X 2^8.
Final bacterial generation after two hours = 256,000(1000 X 2^8)
Why do melting ice caps make Earth warmer?
The correct answer is C. Albedo decreases.
When the albedo is lower, more radiation from the Sun gets absorbed by the planet resulting in rise of temperature. When the snow covered area warms up and melts, the albedo goes down and more sunlight is absorbed in that area and the temperatures increase.
Answer:
According to the theory of evolution by natural selection wolves with mutations will outgrow the wolves without mutation.
Explanation:
Nature always poses challenges to the living organisms in various forms like climate change, food scarcity, natural disasters, etc. If an organism has a characteristic to survive better than the other, then they will be selected by the nature. We can also use the term fitness for this. Darwin also referred about this as reproductive fitness which means only those organisms which are fit in their environment produce more progeny and increase in number. s we can see that the introduction of mutation has added the advantage of being faster and stronger, so when it comes to competition for food the wolves with mutation can easily catch the predator than wolves without mutation. Since mutation has resulted in better adaptation to their environment they will outgrow in number.
As for this problem, the most probable answer and the most likely answer for this one would be D. the effect of pesticides on organisms in the environment.
A toxicologist would only study about chemicals and their effect on organisms in the environment. Pesticides are chemicals made to combat organisms that aren't wanted particular parts of the environment such as crops and rice field. These pesticides don't just affect those organisms that are targeted, but even the users and other organisms that may have come in contact with pesticides.
