Pollution caused the environment to become more darkly colored, so moths were selected to be blacks and greys. Before pollution they were white and lighter colors. <span />
Answer:
Explanation:
Oxygen is needed to support life and some metabolic processes in microorganisms especially aerobic organism.
The presence of oxygen in the container gives them the opportunity to carry out there metabolic activities thereby enhancing there growth and multiplication.
Hence, to limit the growth of aerobic bacteria or fungi, and also to prevent the evaporation of volatile components that is available in the content oxygen is withdrawn this help extend the shelf life of the produce to be stored.
You don't show the table...but you should see that the more complex an organism, the more chromosomes and the more genes it has.
A bacteria has a small genome. perhaps it has about 5000 genes. it also has 1 chromosome.
Yeast are more complicated than bacteria. Saccharomyces cerevisiae (the yeast that makes beer, wine and bread, has about 6300 genes and 16 chromosomes.
A human has 46 chromosomes (23 pairs), and has likely around 20,000 genes.
