What evidence do vestigial organs provide to support the idea that life changes over time?

a. these organs likely had a function in an ancestral organism but no longer appear to have a purpose in the modern descendant organism

b. these organs scientists classify related species, even after they have drastically changed over time.

c. these organs likely never had a function but may take on an important function in the future of the species.

d. these organs had one purpose in an ancestor of the species and have adapted over time to serve a new purpose in the descendant species.

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.

All eukaryotic cells contain small bodies called