Explain one of the technologies used to determine if a fetus has a chromosome mutation and how it works. Also, explain why this technology might be used/requested of the pregnant woman in the first place.

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do

Why did ancient cultures track seasons?