Answer:
The platypus serves as a 'bridge' animal between nonmammals like birds and reptiles, which maintain their testicles in their body cavity, and placental and marsupial mammals, which hold their testes in an external scrotum."
Answer:
No, a person's genotype cannot be determined solely by their phenotype as many genes in our genome do not get expressed.
Explanation:
Cellulose serves as a skeleton for plants
