Answer:
Genetic drift (sampling error)
Explanation:
According to the given information, the population under study has a small size and is more likely to be affected by genetic drift. Genetic drift refers to any chance event that leads to random changes in the allele frequencies of a population over time.
It may occur by sampling error that either makes the allele frequency 100% in the population or completely removes it from the population. Sampling error occurs quickly in the small population. The initial frequency of "blood type A" was 3/85= 0.035. Over the time period of 45 years, sampling error during gamete formation and random fertilization removed all the individuals with "blood type A" from the population and reduced its frequency to 0.
Explanation:
whales, elephants, cows, they are consumers
tree,grass,algae are producers
Answer:
C
Explanation:
A is both gain b is one eats the other and d is one eats a little part of the other
Answer:
observation
Explanation:
The scientific process typically starts with an observation that leads to a question
The best explanation for why a second control group is included because a control group is an essential part of any experiment because it allows you to reach a reliable conclusion.
