A person that studies rocks minerals and earth's land forms are geologist
B. producer because most autotrophs are green plants use light for energy.
Genetic defects can be cause by any chromosome, whether an autosome or a sex chromosome.
Answer: 4; tt
Explanation: The two lowercase letters indicate that there are two recessive genes. If there is one uppercase letter and one lowercase letter, that would mean that it is heterozygous (as there is one dominant and one recessive gene).
