Answer: cell membrane
such as water, micro-organism
physical process
simple diffusion, osmosis and filtration
such as potasssium permaganate in water,urea a liver waste diffuses from the body and the kidney help in filtering it out
physiological processs
active transport, phagocytosis and pinocytosis
such as soduim-potassium pump, exocytosis
Explanation: transportation in and out of cell is done in different ways listed above but a barrier to this movement is the cell membrane which is an outer covering of the cell. it protect the cell and only some materials can penetrate the cell membrane e.g micro-organism, water e.t.c. the various physical and physiological processes are the various ways substance cna be liquid, solid or gas are transported within or outside the cell e.g food
I think it’s A a virus can grow and develop
<u>Answer:</u>
753.48 J
<u>Explanation:</u>
To increase the temperature of of m grams of water by n°C, you need to provide it with:
<em>heat = m x n x specific heat</em>
This will account for increasing the temperature of the first gram of water by n°C until you reach m grams of water.
q = mcΔT
where q = heat absorbed,
m = mass of sample,
c = specific heat of the substance; and
ΔT = the change in temperature
We know that the specific heat of water is 4.186 joule/gram °C so putting the values in the formula to get:
q = 9 x 4.186 x (20 - 0) = 753.48 J
Phòng ngừa và điều trị bệnh, tạo ra các sản phẩm protein mới, và thao tác thực vật và động vật để tạo ra các đặc điểm kiểu hình mong muốn là tất cả các ứng dụng được giải quyết thường xuyên bằng việc áp dụng các phương pháp sinh học phân tử.
