What gives an atom or ion the most stability

A. a valence shell filled with electrons

B. a valence shell incompletely filled with electrons.

Which direction do plates move relative to the area where new seafloor is being added at a rift?

If in any organism a DNA molecule is 24% cytosine, how much adenine will thay DNA molecule contain?

The duplication of a chromosome of the first pair produce a double head and at the same time effect the wing pigmentation and body segmentation

Which question could be answered using DNA as a molecular clock? How old is a dinosaur bone? How long ago was a dinosaur track left in the mud? How long ago did two species of birds share an ancestor? How old was a bird when it died?

What Occurs when oxygen in the lungs passes through the capillary wall to the blood, and carbon dioxide and water from the blood pass into the lungs A. respiratory system B. Gas exchange C. Breathing

Which describes a group of organisms that is considered a species? They can breed and produce offspring that can breed. They are members of the same community. They live in the same ecosystem, community, and biome.

It is not possible for an airborne pathogen to travel very far. TRUE OR FALSE

Speed in a given direction is called a. thrust. c. mass. b. velocity. d. acceleration.

Essay about biology On your semester in biology what was one thing that you learned and will use in your life

A solar eclipse is when the moon blocks the sun from part of the earth. true or false?