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Masteriza [31]
3 years ago
9

Explain the structure of the atmosphere ?

Biology
1 answer:
tamaranim1 [39]3 years ago
7 0

Answer:

Structure of the atmosphere

The atmosphere can be divided into five layers according to the diversity of temperature and density. They are:

Troposphere

Stratosphere

Mesosphere

Thermosphere (Ionosphere)

Exosphere

Explanation:

Composition of the atmosphere

The atmosphere is made up of different gases, water vapour and dust particles.

The composition of the atmosphere is not static and it changes according to the time and place.

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The axial skeleton provides an extensive surface area for the attachment of muscles that __________.
garik1379 [7]

The question is incomplete as it does not have the options which are:

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Answer:

All of the above

Explanation:

The axial skeleton is the group of bones which forms the centre of the skeletal system. The central portion of the skeletal system includes bones of the skull, bones associated with the skull, the thorax, and the vertebral column (spinal cord).

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The axial skeleton help maintains the position of the appendicular skeleton, maintain the posture of the body by maintaining the posture of the neck, head and trunk and also help in the respiratory movements.

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3 years ago
In this Gizmo, only one crossover is allowed in each segment. In reality, crossovers can occur at almost any point along the chr
nikitadnepr [17]

Answer:

Meiosis and Genetic Variation.

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When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between non-sister chromatids of homologous chromosomes. It results in new combinations of genes on each chromosome.

When cells divide during meiosis, homologous chromosomes are randomly distributed during anaphase I, separating and segregating independently of each other. This is called independent assortment. It results in gametes that have unique combinations of chromosomes.

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Answer:

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