*Question*
Q: What is the term for traits that show wide variation, such as height, skin color, and eye color? Choices: - maladaptive traits - inherited traits - recessive traits - polygenic traits A:
**Answer**
polygenic traits

*Question*
Q: In the lungs, bicarbonate is transported back into the red blood cells in exchange for what? Choices: - phosphate - glucose - oxygen - chloride A:
**Answer**
chloride

*Question*
Q: Some fish will be over-fished to the point that their species ceases to exist, which is also known as what? Choices: - endangered - accumulation - abundance - extinction A:
**Answer**
extinction

*Question*
Q: Newly duplicated chromosomes are divided into two daughter nuclei during what stage? Choices: - meiosis - symphysis - prophase - mitosis A:
**Answer**
mitosis