The anatomical part of the lungs where oxygen and carbon dioxide are exchanged is the: trachea. alveoli. bronchioles. bronchi.

Johannes wants to know whether soil, water, or both are needed for plant growth. He chooses to conduct experiments on a willow tree for five years to answer his question. How can his experimental methods be changed to improve his experiment?

The round tough layer of a turtles shell is

The best graph to use if I want to compare the price of six different cars would be a a Line graph b Data table c Bar graph d Pie graph

Name the subunits that make up each of the macromolecules

Which characteristic of four different dinosaur fossils makes a dinosaur most similar to the present-day birds? a) Flexible wrist b) Flapping ability < - - * I chose this answer c) Flight feathers d) Primitive feathers

In which position are the earth, moon, and sun during a full moon?

Which of the following is an example of how a changing environment is important for the sustainability of living systems? A. The water cycle ensures that water used by one organism will be available for another organism in the future. B.

Describe the process and purpose of cell fractionation

What is the largest organ in the rat's anatomy? Why?

Digestion of beaten rice mean is Slowar then digestion of glucose fruits why