Answer:
explain what will happen to a person who lacks of hormone thyroxine in the body?
Insufficient thyroxine causes lots of problems both in young and adult as it affects muscles, memory, weight, infertility among others. Thyroxine is secreted by the thyroid gland which is sent directly into the blood stream
Explanation:
Looking at the features of past species you can determine how old and what differences they have from fossils.
The organisms are now called Linnaeus
D Sori release haploid cells