Match the animals with their characteristics.
exhibits the
phenomenon
of molting
has a mantle and
an open circulatory
system
have a coelom and
a closed circulatory
system
has an endoskeleton
made of calcium-rich
plates

Match each organ or function with its body system. produces urine large intestine ureters mouth filters blood absorbs nutrients from food

Which image shows labeled organelles that are present only in plant cells?

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase