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Sergeu [11.5K]
2 years ago
9

Explain how Punnett squares are used to describe the

Biology
2 answers:
Sergeu [11.5K]2 years ago
4 0

Answer:

It shows how much traits are aquirer from child to kid.

pochemuha2 years ago
4 0

Answer:

its the real one no mistake

Explanation:

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As you are cooking, your hand brushes up against a hot pan. You quickly pull your hand away. What type of stimulus is this?
slava [35]
Stimulus is something that causes a psychological response. It can be internal or external. The stimulus is the contact with the hot pan. It is an external stimulus. Sense organs, such as the sensory receptors in the skin are sensitive to external stimulus. The quickly pull of your hand is a reflex action.
The contact causes a nerve impulse that will travel to the spinal cord via the sensory neurons.<span>To respond to the stimulus of the reflex arc, the muscle needs to contract to pull the hand quickly away from the hot pan.</span>
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2 years ago
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Wendy is a paleontologist and finds a fossil of a bony fish buried in the sediment on the coast. After observing and recording s
antiseptic1488 [7]
The answer is B <span>that bony fish evolved before land plants </span>


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2 years ago
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A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecul
hoa [83]

Answer:

C

Explanation:

I think its C . A transcriptional repressor usually represses the transcription pathway when its active. According to the question, the repressor is not usually active until an effector molecule binds to it making it active and blocking the transcription pathway. So if the region where the effector binds on the repressor is mutated i.e. it turns nonfunctional that means the effector cannot bind to repressor which means repressor cannot become active to block transcription which in turn increases the transcription of gene A because repressor cannot repress it since it is inactive due to its inability to bind to the effector.

ALOT of words please lmk if it makes sense

6 0
3 years ago
How are sharks different form fish?
Marizza181 [45]

Answer:

A shark's skeleton is made of cartilage , a type of strong but flexible tissue .Most other fish are covered in smooth , flat scales . A shark is covered in sharp , toothlike scales called denticles . Most other fish have flaps over their gills.

Explanation:

I hope it's help yu and plz mark me brainliest........... plz plz plz

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2 years ago
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