6.4 Macromolecules Notes Outline Name
1. Following the heavy bombardment period of the Earth, what were the five main constituents
(chemicals) of the atmosphere?
a.
b.
I
c.
d.
e.
2. What three conditions were simulated by the Miller-Urey apparatus to show that life could
arise?
a.
b.
c.
3. What complex compounds were formed in the apparatus?
4. Define organic chemistry-
5. Why is carbon such an important element in the formation of organic compounds?
6. What are macromolecules?

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.