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garri49 [273]
3 years ago
6

The endosperm is formed by a fusion between the _______ and _______.'

Biology
2 answers:
DENIUS [597]3 years ago
8 0

The endosperm is formed by a fusion between the sperm nucleus and two haploid polar nuclei.

Endosperm is a tissue surrounding the embryo of flowering plant seeds, which provides nutrition to the developing embryo. Endosperm formation involves double fertilization. There is fertilization of one sperm nucleus to produce a zygote, while the other sperm nucleus fuses with two haploid polar nuclei to form an endosperm cell. Endosperm is triploid because three cells are fused together.

Airida [17]3 years ago
7 0
I'm pretty sure, that there should be an options to choose. Anyway, I know the answer: The endosperm is formed by a fusion between the<span> polar nuclei</span> and <span>the sperm nucleus</span>.
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Collectively, the hollow cavities in the maxillae, ethmoid, sphenoid, and frontal bones are called the ____________ sinuses..
slamgirl [31]
The answer to this question would be: paranasal sinus.

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4 years ago
Several students were having a discussion about the role of chromosomes in inheriting traits.
serious [3.7K]

Answer:

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.  

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.

Explanation:

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.  - this is true. Prior to cell division, DNA molecules are organized into large structures called chromosomes. Specific regions of a DNA molecule are called genes. These dictate specific proteins which control our traits.

Genes contain thousands of chromosomes that carry specific information about building proteins for a particular trait.  - this is false - genes are segments of DNA that control specific traits by dictating the structure and functions of proteins. Chromosomes contain thousands of genes

Chromosomes are small sections of DNA that contain specific information about a trait to build proteins that people inherit. The thousands of different chromosomes passed from the parents allow for humans to look uniquely different. - this is false - chromosomes are large structures, genes are the relatively small sections of DNA. Humans have 23 pairs of chromosomes, not thousands.

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.  - this is true. In diploid organisms, like humans, have two copies of each chromosome. These chromosomes contain slightly different versions of genes, which make us unique.

7 0
3 years ago
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igomit [66]
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Explanation:

To get this answer, this question and answer is based on the <em>Coriolis effect</em>. The <em>Coriolis effect</em> causes the air to rotate in a clockwise direction. When it turns clockwise direction, it will always be high pressure.

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2 years ago
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Oksana_A [137]

Answer:

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