7. Which structure determines what molecules can enter and leave the cell? (a) the plasma membrane
(b) the cell wall
(c) the nucleus
(d) all of the above
8. Which organelle may have allowed early eukaryotes to make food and produce oxygen?
(a) the Golgi apparatus
(b) the central vacuole
(c) the plastids
the cell wall

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Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration