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nydimaria [60]
3 years ago
14

Which statement is true for chordate nerve cord?

Biology
1 answer:
amm18123 years ago
3 0
Chordates (phylum Chordata) are animals which are either vertebrates or one of several closely related invertebrates. They are united by having, for at least some period of their life cycle, a notochord, a HOLLOW DORSAL NERVE CORD
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A geologist is studying an ancient stack of rock layers. Most of the layers contain fossils of shallow marine creatures (clams,
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Answer:

a volcanic eruption must have occurred nearby which scared the sea creatures away

Explanation:

most sea creatures are scared by volcanic eruption

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This area on earth extends from 66.5o degrees North and south of the equator to the poles. It is an area on earth where temperat
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Polar ice cap

Explanation:

The polar ice cap is an area on the earth that extends from 66.5° north and south of the equator to the poles.

The polar ice cap is an area of very low temperature and the surface is mostly covered by ice.

  • The vast polar ice caps the earth's northern and southern limits.
  • This is the region of the Arctic and Antarctic circle.
  • This region receives diffused solar radiation from the sun.
  • This is why they rarely warm up.
  • The region of the equator has no ice because they receive direct sunlight.
  • The soil here is frozen.

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5 0
3 years ago
According to the theory of evolution , what causes living things on Earth to change over time?
FrozenT [24]

A. Natural Processes

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5 0
3 years ago
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Where are organelles located??
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Inside of a normal cell.
8 0
3 years ago
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A model for a​ company's revenue from selling a software package is ​R(p)equals=−2.52^2400​p, where p is the price in dollars of
dsp73

A model for a​ company's revenue from selling a software package is ​R(p)=-2.5p² + 400​p, where p is the price in dollars of the software. What price will maximize​ revenue? Find the maximum revenue.

Answer: p = $80,  R = $16,000

Step-by-step explanation:

The maximum is the y-value of the Vertex.

Step 1: Use the Axis-Of-Symmetry (AOS) formula to find x:

x=\frac{-b}{2a}

R(p) = -2.5p² + 400

     a= -2.5  b=400

p=\frac{-(400)}{2(-2.5)}

         = \frac{-400}{-5}

        =80

∴ In order to maximize the value, the company will sell the software package for $80

Step 2: Find the maximum by plugging the p-value (above) into the given equation.

R(80) = -2.5(80)² + 400(80)

         = -16,000 + 32,000

         = 16,000

7 0
3 years ago
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