Answer:
The answer is B
Explanation:
As you can see They do walk 1.5 Kilometers and stop at 20 then they walk until 3 kilometers in 40 minutes because they end at 60.
It would be B) Pro
Hope this helps you :))
Answer: Bacteria producing oxygen for the oxygenation of the earth's atmosphere.
Explanation: ????????? NOT FOR SURE
The answer is A. The mutation of the gene was a beneficial
one. It happened in a few individuals
and increased their survival rate. The mutation
was also inheritable hence was passed down generations. The new gene probably altered a protein involved in
metabolism. There are two other types of mutations;
deleterious and neutral.
The R-Type strain of s. pneumoniae does not cause pneumonia because the bacteria cells do not have a protective coating. When it enters the host, it cannot withstand the attacks of the immune system thus it dies before infection. On the other hand, the S-type strain has a protective coat that allows it to survive in the host, which causes infection.
