A student designs a simple experiment to test whether his pet birds
prefer red-colored toys or green-colored toys. Using the scientific
method, what is the student's next step?
Select one:
O
to identify variables
O
to communicate results
to analyze data
O
to collect data

the function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation:

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.