One of your friends plays video games for at least 6 hours a day and gets upset when he has to go eat dinner with his family this is a sign of

Lungs serve the purpose of gas exchange. we inhale air, drawing in oxygen (o2) and exhale air, expelling carbon dioxide (co2). this is done across thin-walled pockets of cells called alveoli.

If a somatic cell has 20 chromosomes, how many chromosomes will a gamete have?

Coleoptera: what proportion of animal species alive today are members of this group?

When riding a bicycle, what part of the body does the brain tell to move your legs in order to pedal?

Which functional group determines two groups of sugars?

Explain why it would be a problem if an organism's very first stem cells were copied and multiplied like usual, but they didn't differentiate.

What makes a storm a thunderstorm?

DNA stores A. Heredity information B. Proteins C. Memories D. Carbohydrates

What does the client learn to deconstruct in constructivism?

Just like other magnets, the Earth has A. two positively charged magnetic poles. B. only one magnetic pole. C. two negatively charged magnetic poles. D. two opposite magnetic poles.