Before the evolution of life produced the process of photosynthesis, small amounts of oxygen were added to the earth's atmosphere by the process of

Is a chemical substance that organisms require to live.

How does DNA in cells determine an organism's complex traits? A.) DNA contains codes for proteins, which are necessary for the growth and functioning of an organism. B.) DNA separates into long single strands that make up each part of an organism. C.

What is smaller than one cell?

A mutation prevents the lac repressor from recognizing allolactose. In the absence of allolactose, the mutant repressor has the same affinity for the lac operator sites as a normal repressor.

What are storage proteins

The fossils found in the different layers of Earth are listed below. Layer 1: Fossil A (oldest fossil) Layer 2: Fossil B Layer 3: Fossil C Layer 4: Fossil D (youngest fossil) Which is the topmost layer? Layer 1 Layer 2 Layer 3 Layer 4

Why dont all cells divide at the same rate

Ingestion of water contaminated with fecal matter is the mode of transmission for

While caring for a client with asthma, the nurse auscultates a bilateral high-pitched, continuous whistling sound in the anterior lung fields. what finding does the nurse document in the medical record?

Finding fossils of coral reefs in nevada desert provides evidence that ... 1) nevada used to be much colder than it is today 2) an ocean once covered what is now nevada 3) there was a mistake because no coral reef exist in deserts 4) ancient coral