Answer:
Because flu viruses evolve so quickly, last year's vaccine may not protect you from this year's viruses. New flu vaccines are released every year to keep up with rapidly adapting flu viruses.
There are five major types of infectious agents: bacteria, viruses, fungi, protozoa, and helminths. In addition, a new class of infectious agents, the prions, has recently been recognized
Which valuable mineral is often found in the rock called kimberlite?<span>A. gold
B. silver
C. diamond
D. platinum
Diamond is one of the most common minerals found in the rock called kimberlite. </span>
The first generation in a genetic cross is called B. F1 generation. Then the next generation is known as the F2 generation.
Your answer is B. F1 generation
A mutation is a new element added to the genetic buildup of an organism. this leads to new abilities that makes that organism adapt to different things, this is passed down through the organisms descendants which will help them get through situations other organisms can't, thus helping the entire species evolve.
