D. Algae do not have organs or specialized tissue. I think...
'Red shift' is a key concept for astronomers. The term can be understood literally - the wavelength of the light is stretched, so the light is seen as 'shifted' towards the red part of the spectrum.
Hope this helps.
Answer:
D.
Explanation:
The immune system lowers the chances of bacteria, viruses, and diseases entering your body
It’s the subsoil layer. Hope this helped :)
