Because havee a especial character who acn do thant
The substance must be able to alter its physical characteristic (for example, its color) in accordance to a change in pH. One example of this is litmus paper, which becomes red under acidic conditions and blue under basic conditions.
Answer:
Living organisms are not created spontaneously
Explanation:
All living organisms are made out of cells, cells are the basic unit of life, and cells come from preexisting cells
Answer:
mechanical water so its the second one
Keystone species, they kinda hold the food webs together
