Answer:
B. genetic variation
Explanation:
We can see that in generation 2 one circle spilts into three differently colored circles! This represents how the gene pool is varying (genetic variation). Hope this helps! :)
Antibiotics hinder the bacterial growth, by affecting their metabolism
Answer:
Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories. Scientists observe in many ways – with their own senses or with tools such as microscopes, scanners or transmitters to extend their vision or hearing.
Explanation:
A good night's sleep improves recall to the previous day's events by facilitating the transfer of memories from the cerebral cortex. Sleep makes you feel better, however, its important is way beyond boosting the mood or banishing under eye circles. Adequate sleep is a key part of a healthy lifestyle, and can benefit the heart, weight, and mind among others. It improves memory, also curbs inflammation which is linked to heart disease, stroke, diabetes, arthritis, and premature aging, among other benefits.