Nutrients cross the membrane wall with the help of protein channels.
Answer:
lichen
Explanation:
Common examples of pioneer species include bacteria, lichen, mosses, and fungi.
primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide.
Coefficients of Absorption for Common Materials
Perforated acoustic ceiling material 60%
Heavy curtains 50%
Carpeting 20%
Wood 5%
Plaster 3%
Clay tile 3%
Concrete 2%
The answer is C. Heavy curtains
17 a
The figure A and B is a plant cell because it is shaped like a box C and D are animal cells because they are circles
17b
Figure A is going through telophase figure B is going though prophase
C is anaphase
D is also telophase
