Answer: Gravitational force
Answer:
The Dad must give a Y chromosome
Explanation:
To have a male child there must be an X and Y chromosome
Answer:
Option b. Lowering the pH to kill pathogenic bacteria is correct answer.
Explanation:
bacterial motors are sensitive to pH. By decreasing the pH bacterial motors stops working. This was identified in a new research. But, with the weak acids and a lower internal pH they slow and ultimately stop moving (became dead).
Reference: Powell, K. Acid stops bacteria swimming. Nature (2003).
Answer:
Adequate stimulus for the sensory receptor cell.
Explanation:
Modality of a stimulus refer to the part of a stimulus that is discerned or perceived after a stimulus.
It is also called sensory modality. Examples of modality of stimulus include, light, touch, taste, temperature, smell and pressure.
E.g A smell modality is perceived after odor stimulate a receptor cell.
Adequate stimulus for the sensory receptor cell determine modality of stimulus within the nervous system.
