15 points/due today/ will give 5 brainliests/ !
biology
the questions are
distinguish between different types of mutations
explain why mutations may or may not affect phenotype
identify internal and external factors that regulate cell division
explain cancer in terms of the cell cycle
i included the two graphs

*distinguish between different types of mutations:  
the  types of mutations   include: missense  mutation   (illustration) this  type of mutation   is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene.

*explain why mutations may or may not affect phenotype:
some  mutations  don't have any noticeable effect on the  phenotype  of an organism. this can happen in many situations: perhaps the  mutation  occurs in a stretch of dna with no function, or perhaps the  mutation  occurs in a protein-coding region, but ends up  not affecting  the amino acid sequence of the protein.


* identify internal and external factors that regulate cell division:  
internal and external factors regulate cell division.  external factors  include physical and chemical signals. growth  factors  are proteins that stimulate  cell division. – most mammal  cells  form a single layer in a culture dish and stop dividing once they touch other  cells.


*explain cancer in terms of the cell cycle:
cell cycle  in  cancer. the  cell cycle, the process by which  cells  progress and divide, lies at the heart of cancer. in normal  cells, the  cell cycle  is controlled by a complex series of signaling pathways by which a cell  grows, replicates its dna and divides.

Pressure, tightness, and squeezing is the answer :)