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sesenic [268]
3 years ago
13

Penicillin was widely used to:

Biology
1 answer:
Ipatiy [6.2K]3 years ago
6 0
Penicillin [antibiotic] was widely used to:
B) treat soldiers during World War 2 (1940s-current)

*smallpox is a virus and not affected by antibiotics
*diabetes is not an infection, therefore antibiotics won't play a role
*plague and middle ages are CENTURIES before discovery of antibiotics
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It's a region of DNA that binds DNA Polymerase to begin replication.
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2 years ago
The diagram shows the leg bones of a (Left -> Right): Orangutan, dog, pig, cow, tapir, and horse. Most of the animals have th
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The answer is a because if you look at the bone structure in each animal, you would notice how similar they look to one another, and all of the animals above use their legs for the same function which is walking which can suggest that all had a common ancestor.

hopefully this helps
8 0
3 years ago
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How does photosynthesis in a purple bacterium (Class Anoxyphotobacteria) differ from photosynthesis in an oak tree?
VladimirAG [237]
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2 years ago
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The moth species Biston betularia has two color morphs, or variants. One has a speckled white and black color, while the other i
Oksana_A [137]

Answer:

D. Changes in the environment changed each morph's ability to evade predation in different ways.

Explanation:

The moth species<em> Biston betularia</em> has two color morphs, or variants. One has a speckled white and black color, while the other is all black. Over the period of time, the distribution of moths dramatically changed between 1900 and 1950 in such a way that black morph became dominant but speckled morphs became very much declined in abundance. The reasons behind this change was heavy industrial pollution in UK between 1900 and 1950.

When the environment became very polluted, dark and blackish, the speckled moth had more chanced of getting eaten by predators thats why they declined in number  as compared to black morphs. On the other hand, backgrounds of grime and soot made black morphs less visible to the predators and they survived well. This is an excellent example of natural selection that only those specie better survive that have the ability to cope better with adverse environmental fluctuations.

Therefore, option D is best option.

Hope it help!

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