True.
Epinephrine and norepinephrine are released as fight/flight response hormones when the body is under extreme stress.
Cortisol is released in response to stress too.
<span>The appropriate answer is c. sonar. Oceanographers use sonar to determine the ocean depth. A sonar signal is sent from the ship. Oceanographers record the time taken for the signal to leave the ship and for it to return. Knowing the speed of sound in water, they are able to calculate the depth of the water. This method is also used to generate bathymetric images of the ocean floor. </span>
They're considered homologous
No, amino acids are not alive.
Antibiotics cannot kill viruses because bacteria and viruses have different mechanisms and machinery to survive and replicate the antibiotic has no “target” to attack in a virus however antiviral medications and vaccines are specific for viruses
