Answer:
The relative frequency of the mutation will increase as time passes.
Explanation:
This random mutation has, by chance, caused a phenotype that is beneficial to the bacteria. This mutation improves the fitness of the bacteria, as they are able to utilize more food sources. This reduces the chance of starvation and death of the cell. Therefore, cells with this mutation are more likely to survive, and for longer.
In times where nutrients are scarce, bacteria without the population will die off. But the bacteria with this mutation will be more likely to survive and pass on their genetic material. Therefore, over time, the frequency of this mutation will increase.
The pancreas is a six-inch-long gland located in your abdomen near your liver and part of the small intestine. It’s nestled right behind and slightly below your stomach and in front of your spine. The head of the pancreas is along the curve of your duodenum, the first part of the small intestine just beyond the stomach.
The pancreas plays a dual role in your bodily functions:
Endocrine system. The pancreas secretes hormones, including the blood sugar-regulating hormones: insulin and glucagon.
Exocrine system. The pancreas also secretes enzymes into your digestive tract through a duct into your duodenum.
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Answer:
The 3rd choice. a = -4, b = 5, c = -2.
Explanation:
Rearrange the quadratic equation given into the form 0 = ax² + bx + c:
0 = 5x - 4x² - 2 --> 0 = -4x² + 5x - 2
The corresponding coefficients for the a, b and c values are:
a = -4
b = 5
c = -2.
Answer:
Option B, by saltation in the first few meters above the land surface
Explanation:
In the process of saltation, sand is carried by air and the sand grains remains suspended for a small distance till the fall down. These sand grains form a parabolic trajectory before falling down. The other characteristics such as height and time of suspended grains depends on grain size, shape, and density, lift & drag force and characteristics of wind such as velocity and turbulence.
Hence, option B is correct
Many mutations that occur will spread quickly throughout a population, creating new species.
