The answer your looking for should be flowering plants
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.
Answer:
The reason why it occurs is when the organism doesn't have the desirable traits it needs to survive.
Explanation:
To survive natural selection, one must be fit and be able to adapt to the environment and situations, thus why it's called survival of the fittest.
Tamam öğretmenim merhaba hocam nasılsınız iyi misiniz ben çok teşekkür ederim canım benim için bir insan değilim ki
