Your answers would be Hormones and Bloodstream
hope this helps.
Answer
The arm and base of microscope are connected with each other with help of inclination joint. which provide easiness to user during research analysis or other microscopic studies.
It has significant role in light and compound microscope that need light for visualization of examine sample. It also help in easy rotation during focusing toward light for better contrast.
Oxygen and hydrogen make up water
The soil would be bad and the plants need nitrogen or it wont grow
Answer:
Acid is sour in taste and bases are not