If an atom has 7 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration? electrons

The units that determine the inheritance of biological characteristics

Suppose gene A is orthologous in species 1 and species 2 and gene B is paralogous to gene A in species 1. Gene A differs considerably between species, yet gene A and gene B show little divergence from each other.

As her car spun out of control on an icy road, mia's muscles tensed and her blood pressure, heartbeat, and pulse increased dramatically. this rapidly occurring chain of internal physical reactions is called the:

The pH indicator bromothymol blue is blue in an alkaline solution and yellow in an acidic solution. A slight increase in acidity, such as when CO2 gas is added, causes a solution with the indicator to change from blue to yellow.

Which colors of light do you not see when you look at a green leaf?

What are the weakness and strengths of Behavior

Most glaciers in Alaska are retreating, although the average annual snowfall has increased in the last few decades. What does this tell us about what is happening to sea-level temperature?

Jessi consumes a diet of 1920 total kcalories that has 80 g of fat. what percent of jessi's diet comes from fat? (give answer to the appropriate reporting digit. only give the value. do not include the term percent or its abbreviation.)

Scientists break down evolution into catogories

The process of sediments being compacted and cemented to form sedimentary rocks is called A. metamorphism. B. deposition C. crystallization D. lithification