What is the purpose of the vas deferens?
to store, develop, and transport sperm cells from the testes
to release the sperm from the penis
to produce seminal fluids to give sperm motility
to transport the sperm from the epididymis to the urethra

Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove

What is the difference between a meteoroid and a meteor?

The image shows a group of fish. the type of social behavior shown in the image is called