He sailed on the HMS Beagle to serve as a naturalist.
Answer:
Percentage of food eaten by the flock
Why is the percentage of food eaten a good number to use? Explanation:
A percentage compares the number of birds in the flock to the total number of birds in all flocks.
If the percentage is high, the flock is more successful, so the flock should grow.
If the percentage is low, the flock is struggling to eat, so the flock should shrink.
TT and Tt are possible genotypes of a tall pea plant as the resulting phenotype of both possible genotypes result in a tall pea plant.