A mutation can cause a defect in human hemoglobin. Which would result in this type of mutation?
- decreased ability to carry oxygens
- development of cancerous tumors
- inability to break down sugar
- development of bacterial infections

Which of the following choices is not an effective solution to the energy waste related to inefficient lighting? a. using low-pressure sodium lighting sources b. pointing lights on billboards and street signs upward c. placing light sources on time controls d. shielding light to direct it downward

Organisms that successfully adapt will leave to grownone of the above

What is the problem in this article? what solution does the article propose?