A fossil bone has 25% of this new radioactive element remaining. If the half-life of this new element is 10,000 years, how old is the fossil bone?

Different organisms store glucose in various forms. You discover a new species. Upon chemical analysis, you find that it is comprised of significant amounts of glycogen. To which organism might this new species be related?

An aquifer has been compared to a sponge. Think about this analogy for a moment explain why the use of the word quotations "sponge" is more appropriate in the use of "underground river" quotes to describe aquifers.

Why is some cholesterol necessary for animal cell membranes but high cholesterol levels are dangerous?

Why can't humans have more?

What is pre colonial African societies

Squamous cell carcinoma and basal cell carcinoma are both cancers of cell tissue of the skin, lining of the blood vessels, respiratory, intestinal, urinary tracts, and other body systems. These carcinomas are found in what type of tissue?

The ocean is a three - dimensional environment. Explain how this kind of living space impacts diverse forms of marine life.

How could a populations gene pool change overnight time?

Which of the following best describes the Lianas vine? a. It only grows in the canopy. b. It is a ground-dwelling vine. c. It climbs a tree to the canopy then spreads to other trees. d. It climbs a tree then spreads through that tree's canopy.

When protists and fungi are compared, which feature is unique to protists? spores hyphae flagella pseudopods