Answer:
A) Tomato plants grown in soil with no fertilizer
Explanation:
The control group is the group that you do not change anything. This is used as a basis or a baseline to determine whether changes you make in the experimental groups actually made a difference. An experiment is incomplete when you do not have this because it does not show any evidence that the change you made is what ellicits an effect.
Answer:
it's not possible to exert more force on an object than it can exert back
A. Cell junctions in areas are subjected to great mechanical stress, such as the skin and heart muscles
Chordates are animals that possess certain characteristics including a notochord. Humans fall into this category along with many vertebrates such as whales, falcons etc; therefore, all of the answers apply.
Food, research, therapy, entertainment affection.
Answer:
when carbon reacts with oxygen
the resulting substance will be carbon dioxide
