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Sveta_85 [38]
2 years ago
5

When does the WHO declare a pandemic influenza?

Biology
1 answer:
likoan [24]2 years ago
6 0

Answer:

Three influenza pandemics occurred during the 20th century: the 1918-19 “Spanish flu,” the 1957-58 “Asian flu,” and the 1968-69 pandemic or “Hong Kong flu.” In 2009, the World Health Organization (WHO) declared a global pandemic of H1N1 flu.

Explanation:

Hope this helps! :>

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Miriam lives in New Zealand. She watches the stars nightly. Every evening, all year long, she can see the constellation Crux (th
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3 years ago
How do natural disasters impact human life?
tester [92]

Every year, millions of people are affected by both human-caused and natural disasters. Disasters may be explosions, earthquakes, floods, hurricanes, tornadoes, or fires. ... Disasters can cause a full range of mental and physical reactions.

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3 years ago
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Which effect would you expect a Species Survival Plan to have on the crested
babunello [35]

The correct answer is A. Scientists reintroducing crested toads into the wild.

Explanation

Species Survival Plan is a conservation program promoted by conservationists and zoologists that specializes in those animals that are near extinct, endangered, or threatened. This program mainly aims to breed these species in captivity to ensure their future preservation and reintroduction to nature. According to the above, the effect that could be expected from the implementation of the Species Survival Plan in Puerto Rico with the crested toads would be the reintroduction of this species into the wild after being bred in captivity.

4 0
2 years ago
Which type of cell does the strainer best model?
hammer [34]

Answer:

a

Explanation:

6 0
3 years ago
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Which of the following features did whales possibly inherit from a four-legged ancestor?
pishuonlain [190]

Answer:

2. Hip bones

Explanation:

More than 40 million years ago, whales had ancestors who walked on land. Even now, they have a feature they inherited from them - hip bones. Scientists used to think that they are vestigial, i.e. that they lost their function. However, recently they discovered that these bones help whales (and other marine mammals who have them, such as dolphins) maneuver better mating.

Whales developed the rest of the listed features later, when they became marine animals. This is why they are incorrect.

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