Sometime organisms are born with mutations and sometimes they are picked up during their lifetime.

(a. ) true

(b.) false

(B.) False

You are born with a mutation, you can’t get one during your lifetime but you can develop one that with be passed on to a child, the mutation alters a protein and can disrupt normal development or cause a medical condition. Conditions caused by mutations in one or more genes is called a genetic disorder.

c

explanation:

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.