Answer:
Independent variable: Adding/not adding soil.
Dependent variables: Does the plant grow? Amount of leaves, plant length.
Controlled variables: Type of plant used, amount of sunlight received, pot used for plant, amount of water given, temperature of soil, etc.
Explanation:
Independent variable: The thing that you want to change. To see if plants need soil to grow, you would need to either add or remove soil altogether.
Dependent variables: The thing that is being measured. By adding your independent variable, you should be able to answer certain questions.
Controlled variables: Things you want to keep the same for each experimental group. For example, if you used different plants, your results could be affected negatively as some plants might rely on soil less than others/grow at a slower or faster pace.
1) The bean plant gets energy directly from the sun to make its food by photosynthesis
2) The squirrel's digestive system breaks down food for energy
Hope this helped. :)
Answer:
2) The same number of chromosomes and genes identical to those of the parent cell
Answer:
Villi, alveoli and nephrons are similar as :-
B. They provide large surface areas for molecular exchange.
Answer:
Drinking will be unavalible
Explanation:
