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kherson [118]
3 years ago
12

One signal of a breathing emergency in an infant is: a. sleeping with calm breathing b. breathing calmly and quietly c. making a

wheezing or high-pitched sound d. being awake and alert
Biology
1 answer:
galina1969 [7]3 years ago
7 0
C. making a wheezing or high-pitched sound
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26. The characteristics of a particular organism are listed below
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A humpcnid enocaom is made of two or more simple machines.
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a. List two structures that are found in plant cells but are not found in animal cells. b. Provide the function (job) of each st
Lyrx [107]

Answer:

1. CELL WALL

2. CHLOROPLAST

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The major function of the placenta is to
beks73 [17]

Answer:

(2) exchange food, oxygen, and waste between

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In most mammals like humans, the fetus produced as a result of the fertilization of the sperm and egg, develops in the uterus or womb of the female. However, this developing fetus cannot yet fend for what it requires for survival and is still dependent on the mother e.g nutrients, oxygen etc. How do this substances get to the fetus? Here comes the role of the PLACENTA.

Placenta is an organ in the uterus that serves as a connection between the mother and the fetus in her womb. The placenta enables the mother to pass digested nutrients to the fetus and exchange gases (oxygen and Carbondioxide) between them via the umbilical cord. The placenta also enables the mother remove waste produced by the fetus into her bloodstream.

6 0
3 years ago
Read 2 more answers
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