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Andrej [43]
1 year ago
9

Horseshoe crabs, or Limulus polyphemus, are very common along the east coast of the US. Fossils of horseshoe crabs have revealed

that they have changed very little in the past 300 million years. Which statement best explains why this is the case?
A.Horseshoe crabs have a low reproductive rate.

B.Horseshoe crabs need to change only if humans are present in their environment.

C.The horseshoe crab is well adapted to its environment. and its environment has not changed much in the last 300 million years.

D.Horseshoe crabs have a high mutation rate.
Physics
2 answers:
liubo4ka [24]1 year ago
5 0
The answer to your question is C
AnnyKZ [126]1 year ago
4 0
The answer to this question is C
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Hahahahaha. Okay.

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Answer:

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Explanation:

a. Given the force as 50N, times as 0.2seconds and the weight of the ball as 0.5 kg, it's final velocity can be calculated as:

F\bigtriangleup t=m\bigtriangleup v\\\\50N\times 0.2s=0.5kg\times \bigtriangleup v\\\\\bigtriangleup v=2(50N\times0.2)\\\\=20m/s

Hence, the velocity of the ball after the kick is 20m/s

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c. Using the law of momentum conservation:

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ivolga24 [154]
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Paladinen [302]

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The sulfur oxide and water vapor must have been derived from volcanic activities in geologic times past.

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