When each cell specializes in a certain tasks, some cells make fingernails, others become blood cells, brain cells, kidney cells, Etc.
Answer:
1TT:2Tt: 1tt
Explanation:
T t
T TT Tt
t Tt tt
Therefore 1/4*80 = 20 dwarf plants
3/4*80 =60 tall plants
The substance is guided through a protein embedded in the membrane from high to low concentration since this not considered as active.
Answer:Several theories have been proposed for the formation of desert pavements. A common theory suggests they form through the gradual removal of sand, dust and other fine-grained material by the wind and intermittent rain, leaving the larger fragments behind.
Explanation: scientists have had sever theories as stated in my answer above
