A farmhouse shelters 10 animals. some are pigs and some are ducks. altogether there are 36 legs. how many of each animal are there?

O q u e s ã o t e n d õ e s?

Should we devote time and money to developing alternative energy resources? Why?

Explain why the nuclear membrane should dissolve during mitosis. what is the "risk" to the cell if the nuclear membrane is dissolved?

How many glucose molecules can be formed by 6 molecules of carbon dioxide? A. 1 B. 12 C. 6 D. 18

Select the mechanisms where the concentration of the nucleophile/base has no effect on the reaction rate

Evan and his friends are so surprised to find deer in their subdivision! His mom is getting mad because every morning they are in the garden eating everything they see.

HURRY! Which best describes the structure of the molecules that make up proteins? O A. Carbon + hydrogen + oxygen B. Phosphate + sugar ring + nucleotide base O C. Hemoglobin + oxygen + iron O D. Carboxyl group + amino group + side chain

Which plant cell organelle converts chemical fuel into packets of chemical energy that can power the cell?

6. What mechanisms or events are needed for a star to make heavier elements than iron?

This is the process that release energy by breaking down food molecules in the presence of oxygen