What are the central themes of biology

What parts of a nucleotide make up the back bone of a nucleic acid?

A Venus flytrap produces new leaves from the step tip. Which life characteristic does this illustrate? a. growth b. reproduction c. homeostasis d. response to stimuli

What would happen if a freshwater fish didn't produce lots of watery urine? a. The fish would shrivel. b. The fish would swell. c. Water would move out of the fish by osmosis. d. Water would be pumped out of the fish.

Region in the bacteria where their chromosome is located

List two human made disturbance that can lead to succession?

Pinocytosis is an example of

Gases such as oxygen and carbon dioxide cross the plasma membrane by

Describe how a cell produces and releases proteins.

During a trip to Galapagos island which Observation led Charles Darwin to suspect that organisms change over time

Prudence and Charity are twins raised at the center of a rotating kingdom. Charity goes to live at the edge of the kingdom for a time and then returns home. Discuss which twin is older when they rejoin.