Evidence suggests that giraffes once had short necks. how does natural selection explain why giraffes now have long necks

How to convert 2750 mg to g?

1. A gas sample at a pressure of 5.00 atm has a volume of 3.00 L. If the gas pressure is changed to 760 mm Hg, what volume will the gas occupy?

How do action and reaction forces move a swimmer forward in the water?

Which statement best illustrates vibrational motion? a. a racecar driver speeding around a track b. a model walking down a runway c. a cello playing music at a concert d. a ballerina twirling in place

Someone sprays perfume in another room. It can be smelled a few minutes later. Which process is this called? A. mitochondria B. active transport C. osmosis D. diffusion

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.

The compound KOH is called