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gregori [183]
3 years ago
13

How placenta is design to provide nutrition to developing embroy

Biology
1 answer:
BartSMP [9]3 years ago
5 0
The placenta is the interface between the maternal and embryo's blood, and allows for the exchange of nutrients, including oxygen and carbon dioxide exchange, but prevents certain drugs and chemicals from reaching the embryo. Its a bit like a security guard that only lets certain things though to the baby.
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What is the message behind this<br> political cartoon?
zysi [14]
<h2>Answer:</h2><h2>Haha!</h2><h2>I don't know sorry (◔‿◔)</h2>

7 0
3 years ago
. Cuando la célula madre se divide varias veces de forma consecutiva y los núcleos se rodean del citoplasma dentro de ella, es u
AfilCa [17]

Answer:

Cuando la célula madre se divide varias veces de forma consecutiva y los núcleos se rodean del citoplasma dentro de ella, es una reproducción tipo: <u>esporulación</u>.

Explanation:

En la reproducción asexual, un solo ser origina nuevos individuos iguales entre si e iguales a su progenitor. Este tipo de reproducción es común en ciertos invertebrados, en las bacterias y en los protozoarios. La esporulación es uno de los tipos de reproducción asexual, esta consiste en varias divisiones del núcleo que se envuelve de fragmentos citoplasmáticos, originando muchos descendientes genéricamente idénticos. Dicha reproducción permite la formación de esporas y la liberación de las mismas cuando las paredes de la célula se rompen. Se observa en ciertas especies de protozoarios.

8 0
2 years ago
Suppose that in​ 2008, 819,450 citizens died of a certain disease. Assuming the population of the country is 250 ​million, what
Goshia [24]

Answer:

The correct answer is 327.78.

Explanation:

A mortality rate refers to the determination of the rate of the occurrences of deaths in a given population in the course of a particular time period. The formula for finding the mortality rate is:  

Deaths taking place in a given time duration / the size of the populace among which the deaths have taken place × 10ⁿ

The given population of the country is 250 million

The number of individuals died due to a certain disease is 819450

Thus, the mortality rate per 100000 can be calculated as:  

819450 / 250000000 × 100000 = 327.78 deaths per 100,000 people.  

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3 years ago
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Nucleotide sequence comparisons are possible because all organisms share what
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Same base pairs !! Adenine;Guanine;Cytosine;Thymine !!
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3 years ago
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