If there are approximately 320 million people in the US, how many pounds of garbage is thrown out a DAY in the US? A. 3.2 million pounds
B. 1.4 billion pounds
C. 320 million pounds
D. 14 billion pounds

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.