Answer:
c. The harmless bacteria had been transformed.
Explanation:
Fredrick Griffith carried out the first experiment that showed bacteria can get DNA by transformation in 1928.
He used two different strains of the bacteria Streptococcus pneumoniae a)type-III-S or smooth strain-Covered by a protective polysaccharide capsule hence lethal
b) type II-R or rough strain-Lacked the polysaccharide hence non-lethal
In his experiment he observed heat killed Type-III-S strain was not able to kill the mice. However, when its remains was added with rough strain then the blend was able to kill the mice.
When he collected blood from the dead mice it had live strains of both smooth and rough type.
He came to a conclusion that non-lethal type II-R strain was transformed into lethal type II-S strain by a "transforming principle" that was supposed to be the part of dead III-S strain bacteria.
Answer:
i want to say 6 but I am not sure
Answer:
If a whole specie of organisms has to survive, they should must possess the ability to reproduce and adopt to environmental conditions in better way.
For example: If a disaster occurs or a condition of unfavorable weather occurs, the specie will survive even if only few members remain alive. Because those members will reproduce and regrow the community.
The reason is this that reproduction is not important for the survival of one organism, like organism will still survive even if he do not reproduce, but if a whole specie has to survive and continue, reproduction is most important trait.
Hope it help!
I’m guessing San francisco was cooler and st. louis was warmer?
Answer:
The correct answer is option a, that is, cerebellum.
Explanation:
Alcohol acts as a CNS depressant. When more amount of alcohol is taken and the levels of alcohol rise within the body, some sections of the brain get influenced and a reduction in the functioning is witnessed in that particular part.
The region of the brain accountable for coordinating movement and also some kinds of learning seems to be sensitive specifically to the consumption of alcohol. Thus, cerebellum is the part of the brain, which gets most affected due to the consumption of alcohol. Therefore, test is performed to witness the balance of an individual, as cerebellum is the part of the brain responsible for appropriate posture and balance.
