Crop modification is when the DNA of a plant is altered, commonly used to make them more desirable. For example, bananas weren’t always these long and seedless fruits but with crop modification, over time scientists were able to change the DNA of the banana we know today.
The answer is a negative externality
A. magnetic if its wrong let me know
Bacteria. Bacteria is used to produce some foods items hence can be present in high numbers. Pasteurisation minimizes bacteria count
Fitness is a measure of reproduction success (how many offspring an organism leaves in the next generation, relative to others in the group). Natural selection can act on traits determined by alternative alleles of a single gene, or on polygenic traits( traits determined by many genes).
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