What is one way that biotechnology can most directly improve the marine environment?

A. Through the use of genetically engineered salmon released to enhance wild salmon populations
B. Through the use of larger salmon released into the environment to consume nuisance fish
C. Through the use of new technologies and methods for cleaning oil spills in beaches and the ocean
D. Through the use of new technologies to make obtaining deeply-buried fossil fuels more cost effective

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

Sickle cell amelia is a condition condition where the red blood cells are deformed which is affected by sickle cell amenia

What is any method of measuring the age of an object or event in years, such as using atomic half-life?