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bixtya [17]
3 years ago
6

What is the importance of the amniotic egg?

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

Answer: The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.

Explanation:

Bogdan [553]3 years ago
4 0

Answer:

The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.

Explanation:

An amniotic egg has a clump of nutrients that is used to sustain the embryo during development. This clump of nutrients is called the yolk, and the yolk sac encloses it.

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Morgarella [4.7K]

Answer:

These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air). Each of these four spheres can be further divided into sub-spheres.

6 0
3 years ago
Which statement describe the advantages of sexual reproduction? Check all that apply
Nadya [2.5K]
Well, there is nothing given to list, but I kinda know because I actually liked biology class.

Advantages include:
Variation in offspring - this is really important to the survival of a species. Variety in DNA allows an offspring child thing being to be able to adapt to new environments and immune system attack and evolve gaining better and better traits for survival.
It also increases the chance of at least some offspring.
8 0
3 years ago
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Nitrogen-fixing bacteria in the roots of soybeans help provide a source of nitrogen to the plants, and in exchange, the bacteria
Valentin [98]

Answer:

symbiotic relationship

Explanation:

A symbiotic relationship is a relationship in which the members of the relationship get benefits from each other....... In roots of leguminuous plants , the bacterias are the only source for nitrogen by plants & in turn plants provide food to bacterias

3 0
3 years ago
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A lump of coal and a can of gasoline are examples of: A. Gravitational kinetic energy. B. Chemical potential energy. C. Gravitat
andrew-mc [135]
Chemical potential energy. Potential energy being converted into kinetic energy. A lump of coal and a can of gasoline 
3 0
4 years ago
When a single cell of E. coli reproduces, it first duplicates its DNA. Next, the cell elongates as each copy of DNA is pulled to
Advocard [28]

The options are:

A. They are genetically different from the parent because they are produced by sexual reproduction.

B. They are genetically identical to the parent because they are produced by sexual reproduction.

C.  They are genetically identical to the parent because they are produced by asexual reproduction.

D. They are genetically different from the parent because they are produced by asexual reproduction.

Answer:

The correct answer is- C.  They are genetically identical to the parent because they are produced by asexual reproduction.

Explanation:

<em>E. coli </em>reproduces through binary fission in which the genetic material of cell of <em>E. coli</em> first duplicates and then the cell elongates and each of the copies of their genetic material is moved to opposite poles.  

After this, the cell gets divided into two equal daughter cells. As binary fission is an asexual reproduction so there is no mixing or combination of genetic material from other <em>E.coli</em> therefore the resultant daughter cells are identical to the parent cell.

Therefore the correct answer is option c.

6 0
4 years ago
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