<span>vestigial structures because they are hard </span>
Answer:
D. build them up and breaks them down
hope this will help :)
The correct option is B.
Idea models refers to those models that are used to show the relationships that exist between abstract concepts. The model is used basically to bring about desired changes and it normally used in business and other sectors to visualize how an idea might work out. Idea models are usually presented in form of graphs and equations, the variables in these graphs and equations show the relationships between the variables that are been considered.
Cross breeding the fruit will give the offspring characters of both fruit parents due to the DNA being replicated and passed
Eat worms from the ground