In humans, brown eyes (B) are dominant over blue eyes (b). Monica has blue eyes and Chandler has brown eyes. They have a son named after Monica's brother Ross, who has blue eyes. Which of the following statements is incorrect? Monica's genotype is BB
Chandler's genotype is Bb.
Ross's genotype is bb.
Ross inherited a b allele from Monica and a b allele from Chandler.

Monica's genotype is BB is inorrect becuase BB shows that hse would have brown eyes when she has blue eyes.

Explanation:

"monicas genotype is BB" is incorrect

Explanation:

for ross to have blue eyes, chandler must have the genotype Bb, and monica must have bb. monica cannot have BB because that would give her brown eyes

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.