Cell membrane control the entry and exit of the cell . cell membrane even seperate external environment from the internal cell. gates seperate our house from roads , even gate controls entry and exit . in this way cell membrane and gates are similar
Answer: i think it's the first one and coexist is not in the dictionary
What is cell specialization?
Answer: cell specialization is an adaptation to do a particular job in a cell
The correct answer is: D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.
The lymphatic system is an open system which primarily consists of lymphatic vessels, (similar to the circulatory system's veins and capillaries) interrupted by lymph nodes, where the lymph is filtered. Since there is no central pump in lymphatic system (like heart in circulatory system) lymph transport, is slow and sporadic. Lymph movement occurs due to:
• peristalsis (contraction and relaxation of smooth muscle tissue),
• valves,
• contraction of adjacent skeletal muscle and
• arterial pulsation.
Nucleic acids are made up of nitrogen bases, sugars, and phosphates.