!20 POINTS! Which behavior is an example of how animal communication helps a population survive?

A. A bird destroys another bird's nest so that it can nest in that spot.

B. Giraffes and zebras compete for water at the same watering hole.

C. Ants use their bodies to form a bridge that other ants can use to get to food.

D. A bee returns to the hive and shares the location of food with other bees.

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

Apopulation has 1000 individuals. over a period of 1 year, 500 newindividuals are born. which equation shows how to calculate the birthrate ofthis population? a. 500 - 1000 = 0.5b. 1000 x 0.5 = 500c. 1000 - 500 = 2d. 1000 + 500 = 1500

Can create a hboth of these instruments can measure wind speed. doppler radar and psychrometer anemometer and hygrometer doppler radar and anemometer radiosonde and psychrometer