The picture is really blurry I can’t see it
I think the part of the brain that stores stressful experiences as negative emotional memories is the LIMBIC SYSTEM.
The limbic system is the c<span>enter of our emotions, learning, and memory. </span>It is composed of the amygdala, hippocampus, thalamus, hypothalamus, basal ganglia, and cingulate gyrus. All parts of the brain.
I think the correct answer is the first option. The key features of chordates would be notochord, dorsal tubular nerve cord, pharyngeal pouches, and a tail. These features appears in some period of their lives. They are deutorostomes where the anus would be formed first before the mouth.
An involuntarily muscle contracts when you don't mean to do it, or you do it without thinking. One body function is the lungs contracting so you can breathe. you don't think about it it just happens. Hope this helped.
In order for natural selection to occur, a selection pressure must be present. This selection pressure causes species to die out, and the ones that are able to cope with this pressure have what is called a selective advantage.
In the above mentioned scenario, the selection pressure on bacteria are the antibiotics that kill them. This occurs until some bacteria are born with a genetic mutation that allows them to survive the effect of an antibiotic.
Once this occurs, the bacterium is able to survive while the rest of the bacteria are wiped out by the antibiotic. This bacterium then has all of the present resources available to itself, which means that it can divide indefinitely until resources run out. It passes this antibiotic resistance to its offspring, and a strain of bacterium is formed which is resistant to antibiotics.