There are 2 high tides and 2 low tides every 24 hours.
A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses. Germ line mutations occur in the eggs and sperm and can be passed on to offspring, while somatic mutations occur in body cells and are not passed on.
Recessive mutations inactivate the affected gene and lead to a loss of function. For instance, recessive mutations may remove part of or all the gene from the chromosome, disrupt expression of the gene, or alter the structure of the encoded protein, thereby altering its function.
Global warming in ozone layer, co 3 level less in the atoms sphere.
The answer is B:
A chipmunk takes shelter in and oak tree and is protected from predators, and in return disperses seed around the area
An investigation is to search something up to look for the facts an demonstration is showing a reason of proof for something
