Answer:
A medida que la Tierra se enfrió, se formó una atmósfera principalmente a partir de gases arrojados por los volcanes. Incluía sulfuro de hidrógeno, metano y de diez a 200 veces más dióxido de carbono que la atmósfera actual. Después de aproximadamente 500 millones de años, la superficie de la Tierra se enfrió y solidificó lo suficiente como para que el agua se acumulara en ella.
Explanation:
lo siento, no soy español y usé el traductor de google
Answer:
B
Explanation:
Light shows duality i.e it shows properties of both particle as well as wave.
<h3><u>Answer;</u></h3>
In metaphase I, the chromosome tetrads align on metaphase plate
while in metaphase II, chromosomes align on metaphase plate as they are in mitosis with only sister chromatids.
<h3><u>Explanation;</u></h3>
- Meiosis is a form of cell division that halves number of chromosomes when forming specialized reproductive cells such as gametes
.
- Meiosis occurs in two phases, namely; meiosis I and meiosis II. During homologous pairs of chromosomes align on the equatorial plane at the center of the cell.
- During metaphase II, the spindle fibers connect to the kinetochore of each sister chromatid. The chromosomes align at the equatorial plane, which is rotated 90° compared to the equatorial plane in meiosis I.
Answer:
The process of infecting or the state of being infected
Explanation:
Answer: Option D " all of the above "
Explanation: DNA can be a great source of information when used as a forensic evidence. This technique has many advantages and disadvantages when used as a source of information in case of crime.
Identical twins: There are some common fragments of DNA that is same in identical twins so it can be a difficulty in deciding the criminal.
Not enough of a sample: DNA should be present in a detectable amount to be used an sample for evidence, less than this detectable amount is a waste and cannot be used as a sample for evidence.
Contaminated and degraded sample: If the sample of DNA is contaminated or degraded then the result might be incorrect and might not be used as a sample for forensic evidence.
Hence, the correct answers are all of the above.
