When rain forests are cut down, there is a 1.
loss of fossil fuels that could be used by industry
2.
release of excess oxygen to the atmosphere
3.
release of chemicals which cause helpful mutations
4.
loss of genetic material available for research

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].

bc blah

explanation:

bc blah

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up