C. A higher amount of addictive chemicals are needed to get the same high when fewer receptors are present...
Black for the first,
Brown for the second,
And,
White for the third.
Hope that his helps you..
1. Biological control is the intentional manipulation of natural enemies by humans for the purpose of controlling pests.
2. Mechanical control includes mowing, hoeing, cultivation, and hand pulling.
3. Chemical control is the use of herbicides.
Since the round seed gene is the dominant gene, it follows that, a cross between a round seed plant and a wrinkled seed plant will lead to only round seed offspring.
<h3>What is genetics?</h3>
Genetics is the science that studies the patterns of inheritance. The unit of inheritance located in the chromosome is called the gene.
Since the gene for having round seeds is dominant over the gene for having wrinkeled seeds, a cross between a round seed plant and a wrinkled seed plant will lead to only round seed offspring.
Learn more about genetics:brainly.com/question/12985618
Structurally, DNA and RNA are nearly identical. However, there are three fundamental differences that account for the very different functions of the two molecules. RNA has a ribose sugar instead of deoxyribose sugar like DNA.
