26-03-2017
Biology

contestada

explain why mutation and natural selection make development of new flu vaccines necessary every year

Respuesta :

rkibler2 rkibler2

26-03-2017

As the disease encounters the vaccine it can pass on genes that the vaccine can not fight off.

Answer Link

Otras preguntas

Jonathan watched 6 videos that were 8 minutes long. He also watched 5 minutes of ads during that time. For how long was Jonathan watching videos.

What did JJ Thomson discover about atom? What did his atom model look like?

What acid is car batteries?

Based on the graph, determine is the discriminant is positive, negative or zero.

(a 3 - 2a + 5) - (4a 3 - 5a 2 + a - 2)

What two numbers multiply to get -6 and add to get -8

Jonah had $340.87 in his checking account. He deposited $53 and wrote a check for $38.72. Find his new balance. -How did Jonahs balance change after he deposit

Since starting a new recycling plan Sam's office recycles 11 kilograms of paper each week. After 2 weeks, how many kilograms of paper will Sam's office have rec

What is the first step in creating a painting using linear perspective?

Please answer this correctly