D it allows all substances to enter & exit the cell.
Answer:
C. True.
Explanation:
It should be understood that the the percentage of nitrogen is the highest in the atmosphere. This is because, it make up of more than 60% of the atmosphere. And it should be noted that the atmospheric nitrogen is inform that can not be used by the plant.
Therefore, there is a need for a certain group of bacteria which live in the root noodles of the plants to convert the unused form of the atmospheric nitrogen to a form that can be used by the plants.
I’m sorry i don’t know the answer but i wanted to warn you to NOT click on the link. it supposed to track your location. at least that’s what i heard
Answer:
Gravity is measured by acceleration that it gives to freely falling objects . At Earth's surface the acceleration of gravity is about 9.8 meters ( 32 feet) per second per second. Thus, for every second an object is in free fall, its speed increases by about 9.8 meters per second.
