Paleozoic shells, which do not fizz in acid, are probably recrystallized from the original aragonite to calcite (except for echinoderms, which are originally calcite). true false

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.