Answer:
<u>Option:</u>False.
There are billions of microorganisms including bacterial life, archea, insects and many other living beings which resides inside the various layers of the soil.
Explanation:
There more then billions of a microorganisms which lives inside the various layers of the soil and mainly performs the function of decomposition inside the environment, which leads to break down of macro-molecules inside the environment and enough energy is released by the breakage of bonds present on molecular level. As the optimum amount of energy is required to drive all the cellular processes and more over for the sake of conservation of energy inside the biosphere.
- <u>Fertility of the soil and fixation process:</u>
The fertility of the soil is greatly effected by the right amount of microorganisms present in it. As the microorganisms along with other insects and bacterial life greatly effects the fertility of any soil sample.
Answer:
Two gametes end up with 30 chromosomes, one gamete will have 31 and one will have 29.
Explanation:
During meiosis, a single diploid cell divides into four haploid cells with half the chromosome number than the parent cell.
During meiosis I, homologous chromosomes separate and the chromosome number in the two daughter cells goes down by half. During meiosis II, the "sister" chromatids separate, and the chromosome number in the respective daughter cells remains the same.
Non-disjunction of a single dyad in meiosis II causes that one of the daughter cells will have an extra chromosome, and another will be lacking one. The two other gametes will be normal.
I drew a simple example of what would happen during meiosis of a 2n=4 cell if there was non-disjunction in a single dyad during meiosis II.
Answer: some viruses are contagious which makes them more dangerous than viruses that are not contagious
Explanation:
Answer:
The correct answer is - D. All rocks were molten in that time period.
Explanation:
The early Precambrian era began 4.6 billion years ago. The formation of eath start from this era with dust and gas. The atmosphere at that time was too hot. It was like hades. The rocks were molten and appear to like an ocean of rocks.
Due to the molten rocks, there are no samples of rock from this area as it was too hot to be formed. There were boiling sulfur and gases were everywhere.