Column A Column B
C
1) mixture
A
a mixture of metals
B
a substance that dissolves in
another substance
2) solution
3) dissolve
a combination of two or more
substances that do not join
together to form a new
substance
4) solute
D
to form a solution with another
substance
5) solvent
a mixture in which the
substances are spread out so
evenly between one another
they cannot be told apart
6) alloy
F
a substance that another
substance dissolves into

What does it mean for a cell membrane to be selectively permable

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

Step 1 review the imaginary strand of dna below. note the complementary base pairs. a g c a a t c c g t c t t g g t c g t t a g g c a g a a c c step 2 to begin replicating this strand of dna, draw the two sides of the strand separating. step 3 now, draw the free-floating bases linking up with the separate sides. remember to follow the rules of complementary base pairing. step 4 draw the two resulting dna strands.