The founder effect: is the reduction in genetic variation that occurs when a small subset of a large population is used to establish a new colony. The new population can be very different from the original population, both in their genotypes and in their phenotypes.
For question 1:
Look at the graph. In the beginning we start out with a feed of 75% wheat and 25% corn. The weight of the pig is 40. Look at the rest of the graph. Each time they lessen the amount of wheat the pigs eat and add more corn, they get heavier. By the end, the pigs are fed a blend of 25% wheat and 75% corn and they weigh 61 pounds. The answer would be C.
We now have fertilisers which are sprayed in large quantities on crops which make the plants grow very well
I would say that the best pieces of evidence as fossils should be petrified wood and tyrannosaurus. Tyrannosaurus was basically moved from its original country in which cause it to move. The wood is also the movement from other countries staying on the island.
<span>The random changes a mutation causes to an organisms genetic code causes either
1. A different protein to be produced or
2. none at all
Mutations can either have a positive, negative or neutral (the vast majority) effect on the organism. (many times whether they are harmful or helpful depends on the environment.)
When a mutation makes an organism better able to survive that organism is more likely to survive and pass the mutated gene onto the next generation.</span>
