Answer:
Explanation:
Oil sand is an unconventional source of oil. It requires specialized technology and great expertise to win oil from associated waste materials.
The reason why some companies bother about such oil source is explained below;
- Prevailing cost of oil in the world market makes it profitable to extract these oil from sands. A high cost of oil crude oil is a good cause to produce oil form oil sands.
- Development of new technology can catalyze interest in profitable exploration from unconventional sources.
- Economic policies can also favor the production of this source of oil.
- Demand for oil in the market can jack up production levels that can also be met by oil from oil sand.
<h2>Answer:</h2>
Chromosomes are structures present in the nucleus of the every organism's cell and it is the DNA packed with histones proteins.
Explanation:
DNA deoxyribo nucleic acid is the nucleotide sequence which is the blue print of the structural and functional characteristics of the whole organism.
Nucleus of the call is very small to be contain the DNA of cell. So DNA is present in the condense form by wrapping around the histones proteins which is known as cell division.
At the time of cell division, it is present in chromosomal form to equally divide the genetic material.
Adaptation is not the characteristic of life
By performing this dance, successful foragers can share, with other members of the colony<span>, information about the direction and distance to patches of flowers yielding nectar and pollen, to water sources, or to new nest-site locations.</span>
Hi there!
The most important thing to note here is that eukaryotic cells have nuclei. This is the circular blob-like organelle which encases the DNA. Some other differences eukaryotic cells have over prokaryotic cells include more complicated organelles which are membrane bound.
If we look at these images, what we are looking for is a nuclei, as this will appear most evident. When we look at A and B, we can see a circular organelle that is extremely prominent. However, with C and D, that does not appear. C specifically, the nucleic code is exposed and not membrane bound, meaning it is not prokaryotic. D does not appear to contain a nucleus or any genetic material.
Thus, your answer is A and B.
Hope this helps!
