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Gemiola [76]
3 years ago
9

How does oxygen enter the lungs?

Health
2 answers:
guapka [62]3 years ago
4 0
After you take a breath the air travels through your windpipe and into the lungs
Margaret [11]3 years ago
3 0
As your lungs expand, air is sucked in through your nose or mouth. The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli
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Observer each image of the punnet square and list the two phenotypes and the probability of each phenotype occurring.
Marta_Voda [28]

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In the crossing of two hybrid plants for the color flowers trait can be seen that the phenotypes are purple flowers and white flowers and in the descendants the phenotypes, genotypes and probabilities are purple flowers Bb (50%), purple flowers BB (25%) and white flowers bb (25%).

Explanation:

For the flower color trait, the dominant allele is purple (B) and the recessive allele is white (b). The planted cross shows two purple hybrid flowering plants (Bb) and the offspring can be seen in Punnet square:

<u>Crossing: Bb X Bb </u>

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b            Bb   bb

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  • <em>Plants with pure purple flowers BB 50%. </em>
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Blood carrying carbon dioxide is sent from the heart to the lungs from the
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