What kind of ecosystem are exotic species especially threatening to?
deserts
marine ecosystems
islands
tropical forests

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

A(n) is a molecule influences the way that a molecule reacts.