1. Testing only one variable
A controlled variable means its the one that stays the same. In a controlled experiment, it means there is only one manipulated, (changed) variable.
Answer:
The cell will shrink and wrinkle
Explanation:
Hypertonic solutions have more solute than solvent. The external solution will have a higher osmotic pressure than the cell contents and therefore water will pass out of the cell which will then shrink.
Answer:
The correct answer will be option-A
Explanation:
The practice of marriage is practised in every culture which is associated with the union of the boy and a girl to which they are committed to spending a life-long relationship.
The studies on the preferences shown by the woman who has to get married have to look for the boys who are career-oriented which could provide a good earning to feed them and their family and fond of children to establish a family which will help develop the stronger relationship between them.
The girls ignored the attractiveness feature of their spouses as in a long term relationship attractiveness does not matter because of the feeling of love and strong bond between them.
Thus, option-A is the correct answer.
Stationary fronts occur when warm and cold air meet. This brings cloudy, and wet weather. So your answer would be C.
