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Sloan [31]
4 years ago
9

All of the following stages must occur for a woman to get pregnant. However, after which stage can a woman be described as pregn

ant?
Biology
1 answer:
WITCHER [35]4 years ago
6 0
Pregnancy is declared from the appearance of beta HCG hormone in the woman's urine or blood. 
The hormone HCG (Gonadotropic Chorionic Hormone) is secreted by the placenta from the implantation of the embryo into the uterus. If there has been fertilization, the HCG rate exceeds 8 IU at implantation and then starts to double every other day.
So we can conclude that pregnancy is described at the stage of implantation.
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Which of the following is a system of organs that collects oxygen from the external environment and transports it to the bloodst
ehidna [41]

Answer:D

Explanation:

Respiration is the process of taking in oxygen and release of Carbondioxide in the lungs(breathing),the absorption of the oxygen in the alveolar, into the blood stream for distribution to tissues , the combustion of the metabolites(glucose,amino acids, and fatty acids and glycerol)with the inhaled oxygen to give energy as ATPS and water vapour.

4 0
4 years ago
For this assignment, you will develop a scientific model on a poster that illustrates the role of photosynthesis and cellular re
Ratling [72]

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2 years ago
¿Qué áreas del conocimiento me pueden <br> aportar a la ejecución del proyecto? para un huerto
tensa zangetsu [6.8K]

Answer:

Conocimientos que pueden resultar muy útiles al momento de planificar un huerto:

- biología vegetal (características de las plantas que queremos producir)

- agronomía (características del terreno utilizado)

- condiciones ambientales (meteorología), como así también la disposición del lugar

Explanation:

Para iniciar un huerto en casa es necesario tener en cuenta una serie de factores que pueden influenciar en gran medida el éxito del proyecto:

-Tener en cuenta las características de las plantas que queremos producir es fundamental para lograr un óptimo crecimento. Por ejemplo, plantas que no resisten las heladas podrían morir en ciertas regiones, con lo cual las plantas deberían encontrarse en estos casos protegidas durante su desarrollo (por ejemplo, mediante un invernáculo).

- Buscar lugares bien iluminados. La presencia de luz es un factor fundamental para el crecimiento de las plantas.

- Riego y/o precipitaciones: tener en cuenta las necesidades hídricas de las plantas que queremos producir.

- Suelo: utilizar tierra abonada suele ser la mejor opción para brindarle a las plantas la mayor cantidad de nutrientes y así garantizar un óptimo crecimiento. En el caso de usar macetas, la presencia de huecos o el uso de vermiculita puede ser de gran ayuda para permitir la escorrentia del agua.

- Espacio: es necesario tener en cuenta el espaciado entre plantas para que puedan crecer normalmente.

-Tener en cuenta las plagas (insectos, nemátodos, etc) que podrían afectar el crecimiento de las plantas.

4 0
3 years ago
What is representative sample
Rina8888 [55]

Answer: A group that closet matches characteristics

Explanation:

A representative sample is a group that closely matches the characteristics of its population as a whole. In other words, the sample is a fairly accurate reflection of the population from which the sample is drawn.

4 0
4 years ago
A metabolically important difference between proteins and carbohydrates and fats is that:
Ann [662]
Th answer is D its the best answer that fits the question . 
3 0
3 years ago
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