What is the mass of the green cone? 
A. 542.0 g
B. 540.2 g
C. 500 g
D. 480 g

How do the nuclei of covalently bonded atoms keep the bond together

Which is a function of vascular tissue? a. to perform photosynthesis b. to transport water and nutrients c. to absorb minerals and sugar d. to interact with soil fungi

Which if the following best describes why invertebrates isn’t considered a scientifically valid word when classifying animals