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vovangra [49]
4 years ago
5

Which of the following is correct about the flatworm's muscular system ?

Biology
2 answers:
earnstyle [38]4 years ago
6 0

Answer:

They have 2 layers of muscles.

Explanation:

KIM [24]4 years ago
5 0
A flatworms Muscular system consists of two layers of muscles, I find it weird since they are so flat
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Fittoniya [83]

A week is the correct answer

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3 years ago
How do scientist use layers of rock to determine when the Great Oxidation event occured?
Oksanka [162]

Answer:

Using the concept of relative dating

Explanation:

Scientists use the concept of relative dating principles to determine when the Great Oxidation event occurred.

Relative dating is the process of placing ancient event in their proper time sequence based on the relationship between rock lithologies.

  • An event like the great oxidation will have significant chemical, biological and physical effect on the rock units.
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3 years ago
What evidence supports the big bang theory?
igomit [66]

Evidence supporting the Big Bang theory includes the presence of cosmic microwave background radiation, visual observation of redshifted objects and the abundance of primordial elements found throughout the universe.

8 0
3 years ago
When colorblind women married a male with normal vision, all their daughters have normal vision and all their sons are colorblin
worty [1.4K]

Answer:

X-linked recessive

Explanation:

The trait is a sex-linked trait because the daughters are not colorblind, but the sons are. We know this its recessive because the daughters have inherited the mother's X chromosome that has the colourblindness trait, but are not colorblind because the father's X does not have the colourblindness trait. The sons are colourblind because they inherited the X from their mother with the colourblindnese trait and a Y from their father. The colourblindness trait or normal vision trait is not carried on the Y, so the mother's X chromosome's trait is expressed.

Sorry if it's confusing i tried my best to explain it

8 0
3 years ago
Blood vessels traveling within the ________ space deliver oxygen and nutrients to the spinal cord
garri49 [273]

Answer: Subarachnoid

Explanation:

The  space in the meninges below the arachnoid membrane and above the pia mater  contains the cerebrospinal fluid. Cerebrospinal fluid is produced by choriod plexus( a cluster of capillaries) from the blood. Blood vessels traveling within the subarachnoid space deliver oxygen and nutrients  to the spinal cord.  

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3 years ago
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