They are plants belonging to the group of bryophytes, like moss. They are small, avascular plants that do not have true tissues.
Answer:
A.
Explanation:
the ATP molecule loses a phosphate, becoming ADP. Hope it helps!
Answer: I remember dong this back in October !
Explanation:
Ok so boom....
Control - Only mice near the radio
Independent - Amount of radio wave exposure
Experimental - Mice near the radio
Dependent - Change in strength
Hope that helps
Answer:
Option A, oxygen in the atmosphere
Explanation:
The highest level of oxygen reached during this phase of the geological cycle of earth. The oxygen level in Carboniferous period accounted for 35% as compared to 21% of oxygen in the atmosphere in present time.
Due to high oxygen content, the giant and wide varieties of terrestrial animal and plant species evolved. For example – size of insects and carwlies increased, plant became extremely giant, increase in number of tree ferns etc.
Gene regulation is necessary in the development of multi-cellular organisms because it is necessary to make sure certain things go where they are needed to go. Multi-cellular organisms have more organ systems, therefore depend on more cells to live. Cells have a memory; the genes a cell expresses and the way it behaves depend on the cell's past, as well as its present environment.