Coach taylor is trying to explain the negative side effects smoking has to athletic performance. which of these options include both a scientific model and a connection to coach taylor’s topic of athletic performance? a. show pictures of the lungs of a smoker as compared to a non-smoker b. write the chemical formulas for carbon monoxide (found in tobacco smoke) and oxygen, comparing the two substances c. diagram the flow of oxygen-rich blood through the body of a non-smoker. then diagram the flow of blood with less oxygen (from airway resistance) through the body of a smoker d. list some diseases linked to smoking: cardiovascular disease, lung cancer, emphysema

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

Drag each label to the correct location. each label can be moved more than once match the properties with the subatomic particle

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.