An example is the drop of white-colored moths and an increase in dark-colored moths in London after the industrial revolution. Because darker-colored moths could camouflage well in the sooty environment (due to industrial emissions), they were preyed less by their predators. White-colored moths stood out and due to being preyed more their numbers declined over generations – because they wouldn’t survive long enough to reproduce and pass their genes to the next generation. The predominant color for the moths’ population became dark color.
Answer:
True.
Explanation:
DNA's replication is the process where each daughter cell receives the same copy of the DNA. During the synthesis phase of the cell cycle replication of DNA occurs. While increasing speed of replication the DNA molecule is opened at several locations, and creating multiple replication bubbles.
Replication bubbles opened DNA strands at several locations where DNA are complementary to each other, such as one strand of DNA contains a nucleotides sequence of TCAGTA will have a complementary another strand with the sequence AGTCAT.
Adenine and guanine have a fused-ring skeletal structure derived of purine, hence they are called purine bases. ... Similarly, the simple-ring structure of cytosine, uracil, and thymine is derived of pyrimidine, so those three bases are called the pyrimidine bases.
3.) Testing multiple variables.
Answer: Maintaining a good level of physical fitness is something that we should all aspire to do. But it can be difficult to determine what fitness entails. According to the United States Department of Health and Human Services, physical fitness is defined as “a set of attributes that people have or achieve that relates to the ability to perform physical activity.”This description goes beyond being able to run fast or lift heavy weights. Despite being important, these attributes only address single areas of fitness. This article provides details of the five main components of physical fitness.
Explanation: hope this help
