Animal digestive systems do not function appropriately without the aid of other organisms. in which kingdom do these organisms belong?
a. fungi
b. plantae
c. protista
d. eubacteria

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

What is the function of the root cap? a. extra-absorbent cells in the root cap absorb more water and nutrients b. protect the meristematic area of the stem c. contains sensors for sunlight d. increases surface area of the root

The source of energy shown in the image is (renewable, non renewable, polluting) a drawback of building a dam is that (it will destroy ecosystems, it requires fossil fuels, it won’t be useful for irrigation)