<u>Answer:
</u>
With the advent of condensed and evaporated milk in the late 1800s, the percent of mothers that breastfed their babies had come down to 20-30% by 1940.
<u>Explanation:
</u>
- Though it was deemed crucial to breastfeed the babies during their infant years, majority mothers chose to feed their babies with condensed and evaporated milk owing to various rumors that had disseminated in society.
- These rumors were regarding the sagging of breasts and also about the possibility of breast cancer due to breastfeeding.
- The availability of evaporated and condensed milk just proved to be of convenience for the mothers who did not want to feed their own milk to their babies.
B is not the answer..... the right answer is C- They migrated over land from Africa over the last 80,000 years.<span>
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Answer:
The oblique illumination is
used by the microscopists to resolve N. Spencrii in the Dark Field Condensers.
Explanation:
It was found that the use of oblique light was required to resolve the striae. Oblique illumination was the first step toward dark field microscopy. In dark field, light
seems to radiate from the specimen while all the rest of the field is black. Resolution is as good as that in bright field while contrast is enhanced.
In dark field microscopy, no
direct light from the condenser enters the objective lens. Only light
that is reflected, refracted or diffracted by the specimen enters the objective. The dark field condenser produces a circle of light. The
light is at an extremely oblique angle to the surface of the slide. This
oblique light comes to a focus on the specimen. It then diverges so
strongly that no direct light enters the objective. This type
of illumination is a hollow cone of light.
Answer:
The amount of contact a person has with others who encourage or discourage conventional behavior.
Explanation:
According to association theory, people will most likely conform to a certain action if those people associate with another people in the social groups who are promoting that behavior.
For example,
If a student is hanging out constantly with other students who workouts in their free time, that students have higher likelihood to associate themselves with their group and follow their workout regiment.
This phenomenon also occurred to the student who constantly hanging out with students who vandalize the community. Most of the time, that student will be encouraged to join in, to the point where they might disregard the contradicting advice that their parents given to them.
