Answer:
The last answer is correct if am sure.
Answer:
Answer is option A (true).
The child has brown eyes.
Explanation:
In this example, B represents the allele for brown eyes which is dominant and b represents the allele for blue eyes which is recessive. The color of the eyes, brown and blue are the two phenotypes (physical appearance) obtained from the combination of these two alleles. Since B is the dominant allele (brown eyes), both the genotypes BB and Bb will produce brown eyes. The genotype (genetic code from the combination of alleles inherited from parents) of the child is Bb, so she has brown eyes. The offspring will get blue eyes, only if the genotype is bb (homozygous recessive).
Answer:
Rachel Carson
Explanation:
Rachel Carson was an American marine biologist and author. She wrote the book Silent Spring to make people aware of the effects of pesticides on the environment. Her book was extremely controversial, particularly for the chemical companies. However, as a result of the information contained in the book, the national pesticide policies were changed and DDTs (as well as other pesticides) were banned, thus launching the modern environmental movement.
Gondwana
Pangaea
Precambrian
Paleozoic era
Silurian
