Which of the following is the minimum level of structure needed to perform the function of waste removal. 1:body system. 2:tissue. 3:cell. 4:organ

Give examples of four minerals that can be identified by unique properties. Describe each property.

What determines whether a resource is considered renewable? * a. it can be produced inexpensively b. it is natural c. it is replaced at least as fast as it is used

How does wetland climate interact with plants?

If you kick a ball, you apply an impulse. the impulse is equal to

The number of frogs in a swamp ecosystem increased sharply. Soon, the frogs exceeded the carrying capacity of the ecosystem. How will this situation affect the ecosystem?

32. Explain why it is hard to classify organisms in Kingdom Protista? What are the definin characteristics of the kingdom?

Broken circuits can produce strong electric shocks.

How are earth's organisms and crust interdependent? read more >>?

Which technique is used to separate the different cell parts?

Where does the mitochondrial DNA originate?