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leva [86]
3 years ago
7

How long ago did oceans begin to form? 12.5 MYA 137 MYA 285 MYA 3800 MYA

Biology
2 answers:
stiv31 [10]3 years ago
7 0

They begin to form about 3.8 billion years ago

Ierofanga [76]3 years ago
4 0

How long ago did oceans begin to form?

Answer:

D. 3800 MYA

Explanation:

At this time, about 3.8 billion years ago, the water condensed into rain which filled the basins that are now our oceans.

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Make up a mnemonic device to help you remember the steps of the cell cyle.
Eva8 [605]

Answer:

I - Interphase

Prefer - Prophase

Milk - Metaphase

And - Anaphase

Tea -Telophase

7 0
3 years ago
The plasma membrane of the sea urchin egg ______. A. is outside of the fertilization membrane B. releases calcium, which initiat
Butoxors [25]

The plasma membrane of the sea urchin egg has receptor molecules that are specific for binding acrosomal proteins .

<h3>What is plasma membrane ?</h3>

Plasma membrane is the outermost covering of the body which selectively permits the entry and exit of different type of materials .

Thus ,it is also called as selectively permeable membrane.it also separates the inner and outer environment of the cell .

It also helps in the diffusion process .

<h3>What are sea urchins ?</h3>

Sea urchins belongs to the animalia kingdom , Echinodermata Phylum, and Echinoidea class . they are small marine animals .Sea urchins are spiny , globular .

Learn more about sea urchins here :

brainly.com/question/23213828

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8 0
2 years ago
Pueden una mujer y hombre (ambos normales) tener un hijo albino
Elanso [62]

Answer:

es bastante raro pero sucede que depende de los genes

ESPANOL -

El albinismo es una condición genética en la que las personas nacen sin el pigmento (color) habitual en sus cuerpos. Sus cuerpos no pueden producir una cantidad normal de melanina, el químico responsable del color de los ojos, la piel y el cabello. Entonces, la mayoría de las personas con albinismo tienen piel, cabello y ojos muy pálidos. El albinismo puede afectar a personas de todas las razas, y existen diferentes tipos de albinismo.

Algunas personas con una afección llamada albinismo oculocutáneo tienen piel y ojos extremadamente pálidos y cabello blanco. Otros con este mismo tipo de albinismo pueden tener un poco más de color en el cabello, los ojos o la piel.

Para algunas personas, el albinismo afecta solo sus ojos. Esto se conoce como albinismo ocular. Las personas con albinismo ocular generalmente tienen ojos azules. En algunos casos, el iris (la parte coloreada del ojo) tiene muy poco color, por lo que los ojos de una persona pueden verse rosados ​​o rojizos. Esto es causado por los vasos sanguíneos dentro del ojo que se muestran a través del iris. En algunas formas de albinismo ocular, la audición de los nervios auditivos puede verse afectada y la persona puede desarrollar problemas de audición o sordera con el tiempo.

Excepto por los problemas oculares, la mayoría de las personas con albinismo son tan saludables como cualquier otra persona. En casos muy raros, el albinismo de una persona es parte de otra afección que involucra otros problemas de salud además del albinismo. Las personas con este tipo de albinismo pueden tener complicaciones de salud tales como problemas de sangrado, pulmón, intestino y sistema inmunológico.

it's pretty rare but it happens it depends on the genes

ENGLISH - Albinism is a genetic condition where people are born without the usual pigment (color) in their bodies. Their bodies aren't able to make a normal amount of melanin, the chemical that is responsible for eye, skin, and hair color. So most people with albinism have very pale skin, hair, and eyes. Albinism can affect people of all races, and there are different kinds of albinism.

Some people with a condition called oculocutaneous albinism have extremely pale skin and eyes, and white hair. Others with this same type of albinism might have slightly more color in their hair, eyes, or skin.

For some people, albinism affects only their eyes. This is known as ocular albinism. People with ocular albinism usually have blue eyes. In some cases, the iris (the colored part of the eye) has very little color so a person's eyes might look pink or reddish. This is caused by the blood vessels inside the eye showing through the iris. In some forms of ocular albinism, the hearing nerves hearing may be affected and the person may develop hearing problems or deafness over time.

Except for eye problems, most people with albinism are just as healthy as anyone else. In very rare cases a person's albinism is part of another condition that involves other health problems in addition to albinism. People with these types of albinism can have such health complications as bleeding, lung, bowel, and immune system problems.

Explanation:

translation- can a woman and a man (both normal) have an albino child

7 0
3 years ago
Soil formation is most influenced by _____.<br><br> A.climate<br> B.plants<br> C.wind<br> D.animals
Tems11 [23]
A. climate, because temperature and precipitation are directly related to how dry or fertile soil is
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3 years ago
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My name is Ann [436]

Answer:

Dispersal fundamentally influences spatial population dynamics but little is known about dispersal variation in landscapes where spatial heterogeneity is generated predominantly by disturbance and succession. We tested the hypothesis that habitat succession following fire inhibits dispersal, leading to declines over time in genetic diversity in the early successional gecko Nephrurus stellatus.

Explanation:

7 0
3 years ago
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