Through which of the following processes is carbon directly transferred between living organisms and the environment? a. cellular respiration and the combustion of oil and coal b. photosynthesis and the sedimentation of natural resources c. photosynthesis and the erosion of limestone d. cellular respiration and decomposition

Which characteristics must an object possess in order to be considered alive?

Ascientist observes certain changes in the physical features of a particular species over time. she concludes that the species has undergone evolutionary change. she wants to study the animals by analyzing their population. she’ll use . the population of this species is decreasing considerably. if this trend doesn’t change, this species will fall under the category of animals. this is a plato question,i need to make up his biology credit.

Read each example and decide what the resulting effect on the gene pool of that population would be