Please somebody help Me I need the answer asap. A teacher is pushing a cart filled with books down a hallway with a wooden floor which change will help the teacher move the cart more easily?
A. putting fewer books in the cart
B. removing the wheels from the cart
C. carrying the cart instead of rolling it
D. laying carpet over the wooden floor

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

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.

Which of the following is a good strategy when it comes to desserts