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krek1111 [17]
3 years ago
6

During fertilization, a __________ and __________ combine to form a __________.

Biology
1 answer:
sineoko [7]3 years ago
6 0
During fertilization, a _sperm_ and _egg_ combine to form a _zygote_.

Sperm and egg (gametes) are both haploid, and the fertilized zygote is diploid.
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Which function of the integumentary system is illustrated in the release of sweat? A. Absorption B. Protection C. Sensory Recept
ladessa [460]

Answer:

F. Both regulation and secretion

Explanation:

Through sweat glands and superficial blood vessels, the skin is able to cool the body and regulate its internal temperature.

The eccrine sweat gland, which is controlled by the sympathetic nervous system, regulates body temperature. When internal temperature rises, the eccrine glands secrete water to the skin surface, where heat is removed by evaporation.

6 0
3 years ago
2) ¿Cuál de los siguientes hechos no es una evidencia de una reacción química? a) Presencia de un catalizador b) Cambio de color
Pepsi [2]

Answer:

a) Presencia de un catalizador

Explanation:

Los dos tipos de cambios que experimentan las sustancias en la química son cambios químicos y físicos.

Un cambio físico es un cambio es un cambio en el que la sustancia cambia en su apariencia o su forma de una manera que es reversible y en la que no se forma una nueva sustancia.

Un cambio químico es aquel en el que hay un cambio en las sustancias presentes y se forma una nueva sustancia.

La evidencia de que ha tenido lugar un cambio químico incluye

1) La formación de un precipitado a partir de la mezcla de sustancias.

2) Un cambio en el color de las sustancias.

3) Un cambio en el olfato (que desprende un olor) o en el sabor.

4) La sustancia produce luz (brilla)

5) El volumen total cambia

6) Cambio de temperatura (la mezcla se calienta o enfría)

Por lo tanto, la presencia de un catalizador, que es una sustancia que no participa en una reacción pero aumenta la velocidad de reacción, no es evidencia de una reacción química.

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3 years ago
How does hydrogen bonding help the transport of water in plants?
frutty [35]
When water molecules form hydrogen bonds with other molecules, such as carbohydrates, it is called adhesion. It describes the way water moves through the xylem using cohesion (the water molecules stick to each other) and tension (because transpiration is drawing water out of the leaves).
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If you are on the top a mountain and drop an apple, it
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A. Earth does have a bigger gravitational pull because Planet Earth is huge and it needs and has all the gravity.
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4 years ago
1. When it comes to crickets, what does fitness mean?
Fudgin [204]

Answer:

When it comes to crickets, fitness means one's reproduction in producing as many offspring as possible, so the chances of their offspring living are higher. In addition, the passing on their genes is the most important for their offspring's evolution.

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