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Anna35 [415]
3 years ago
8

Which scenario would most likely cause a mass extinction?

Biology
2 answers:
Eva8 [605]3 years ago
6 0
<h3><u>Answer;</u></h3>

A. global temperatures drop several degrees after several massive volcanic eruptions

<h3><u>Explanation;</u></h3>
  • <em><u>A mass extinction refers to a widespread and a rapid decrease in the Earth's biodiversity. </u></em>
  • <em><u>Mass extinctions may occur due to a number of reasons which includes, asteroid impacts, climate change, massive volcanic eruptions or a combination of all these causes. </u></em>
  • <em><u>An example of mass extinction was during the Mesozoic Era, that led to the extinction of dinosaurs, about 65 million years ago.</u></em>
crimeas [40]3 years ago
3 0

Answer:

A. global temperatures drop several degrees after several massive volcanic eruptions

Explanation:

  • If any event causes widespread destruction of life on earth that would rapidly decrease the biodiversity, then such an event is called a mass extinction.
  • All the organisms living on the planet require an optimum temperature for their survival, besides the temperature also influences the geological activities such as the weather, rainfall patterns, survival of plants and hence the amount of oxygen and control of pollution.
  • Due to the importance of temperature, the drop in it globally would have a major impact on the living beigns.
  • Since a drop in global temperatures would affect the organisms all over the planet this will lead to mass extinction.
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Btw this is the pic of the last question
Westkost [7]
Because it shows the pull.
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5 0
2 years ago
An honest mistake ___.
Mrrafil [7]
B. happens on accident
5 0
2 years ago
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Deer run in zigzag patterns when being chased by predators. What type of adaptation is this?
svet-max [94.6K]

This is called a behavioral pattern. This is something deer have learned over time that gives them an advantage in the wild.

7 0
3 years ago
In cats the allele for short hair is dominant over the allele for long hair. A short haired male and long haired female have kit
SCORPION-xisa [38]

Answer:

Genotype of parents:                  Ss     x     ss

Genotype of offsprings:                  Ss    ss

Expected ratio of short to long:      2  :   2 = 1 :  1

The actual ratio in this problem is Eight kittens have short hair and 3 have long hair: 8 : 3

Explanation:

In cats the allele for short hair is dominant over the allele for long hair. (SS or Ss for short hair; ss for long hair).

A short haired male and long haired female have kittens. Eight kittens have short hair and 3 have long hair.

For the parents to have been able to produce long haired offsprings, it means both parents possess one copy each of the recessive traits. Thus we have

Phenotype of parent: A short haired male and long haired female

Genotype of parents:                  Ss     x     ss

Genotype of offsprings:                  Ss    ss

Expected ratio of short to long:      2  :   2 = 1 :  1

The actual ratio in this problem is Eight kittens have short hair and 3 have long hair: 8 : 3

4 0
2 years ago
HELP ASAP
Gnom [1K]

Answer:

less than 1%

Explanation:

The approximate percentage of the geologic time that humans have existed on the Earth since its origin is less than 1%.

The earth is about 4.6 billion years and much of its history has been without the present of human activities.

  • Hominis were the first human to appear on the surface of the earth.
  • This was in the Miocene epoch which was about 6 million years ago.
  • Compared to the age of the earth, this time lapse is very small and not up to 1%.
  • Life first appeared on earth about 3.5billion years.
  • Since then evolution has taken its due course to give what we have today.
6 0
2 years ago
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