Which one of the following elements is found in nonliving systems but not found in more than trace amounts in living systems? a. hydrogen b. oxygen c. carbond. silicone. calcium

Qué es fotosíntesis

What kind of cells must be in osmotic equilibrium with their surrounding environments

Whales communicate with other whales by making low-frequency sounds. They navigate by making high-frequency sounds that echo back to them.

Nicolas Steno (1638-1686) recognized that fossilized shark teeth were formed from actual prehistoric shark teeth.

How is the water cycle related to the Carbon oxygen cycle

What effect will there be on RNA if the T in GAT is replaced by C?

When cells respond to an extra cellular signal, they convert the incoming information from one form to another. This process is called signal a. induction b. interference c. transduction d. transformation

Explain the function of the villi and where they are found

Apex learning: Antibiotics destroy a bacterial infection by disabling ribosomes in the bacteria. Eukaryotic cells contain mitochondria that themselves contain ribosomes while bacterial cells have no organelles and thus have uncontained ribosomes.

Drowsiness affects your senses especially your