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NARA [144]
3 years ago
8

Explain how energy flows through a food chain

Biology
2 answers:
CaHeK987 [17]3 years ago
7 0
Primary producers pump energy into an ecosystem from an environmental source and then the energy is passed from one organism to another
Ivan3 years ago
5 0

Answer:

Only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level.

The remainder of the energy is used in life processes or lost as heat.

Explanation:

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Red-green color blindness is an X-linked recessive disorder. A woman with normal vision whose father was colorblind has children
andrey2020 [161]

Answer:

The probability of their first child being colourblind is 1/4

Explanation:

Red-green color blindness is an X-linked recessive disorder.

A woman with normal vision whose father was colorblind has children with a man with normal color vision.

In an X-linked condition, the males only need to get one copy of the affected allele to have the condition and this copy is also inherited by a female offspring.

So in this case, the woman receives the affected recessive allele copy from her dad but since she still has normal vision, she received the normal copy from her mom so she is heterozygote for the trait.

The woman with normal color (XRXr) has a father who is color blind (XrY) has children with a normal man (XRY)

The cross would be

XRXr x XRY

XR Xr

XR XRXR XRXr

Y XRY XrY

Probably of having an affected child is 1/4. Thus, the probability of their first child being colourblind is 1/4

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Which occurs just before a volcanic eruption?
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The expanding gases push magma through the pipe.

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