The alveolus has a large surface area to allow for the largest amount of gas exchange. It also has a wall that is only one cell thick to allow diffusion to occur rapidly. Hope this helps x
The correct answer is seismic waves.
The middle layer of the Earth’s is called mantle. Mantle is dense and hot layer composed of silicate minerals. In the base of mantle secondary earthquakes disappear.
Seismic tomography is used for the imaging of this layer. It is an imaging technique that uses seismic waves generated by earthquakes to create images of Earth’s structure.
Answer:
Rock B has a fine grainy texture and small crystals
Explanation:
1. still hasn't turned into sedimentary rock, or metamorphic. Its most likely gonna be igneous and Igneous rocks have grainy texture and small crystals since its still developing
1) Four Helixes in a double chromosome [ 2 for each strand ]
2) Centromere is t<span>he region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
3) </span><span>A </span>homologous pair<span> is a </span>pair<span> of chromosomes containing a maternal and paternal chromatid joined to together at the centromere
4) End result = 12 pair of chromosome which is unindentical to each other.
5) Crossing over is </span><span>the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring.
Crossing over occurs during prophase I in nucleus of the cell [ as it is operation of chromosomes ]
</span>Crossing over<span> creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity. So, it is so important for Genetic diversity
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Hope this helps!
Per calendar year (365 days) there are 31536000 seconds
