Select the correct answer.
in a certain ecosystem, the number of cheetahs is lower as compared to their prey, gazelles. if the cheetahs disappeared from this ecosystem,
then the number of gazelles will increase. this will disrupt the ecosystem of the forest because the gazelles will compete for limited food
resources and possibly exhaust them. in this scenario, what type of species are cheetahs?
a.
pioneer
b.
c.
seral
climax
od. keystone
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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

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin

The combining form leuk/o means red true or false