<h2>Answer:</h2>
Correct order from least great mass to greatest mass:
- Terrestrial
- Ice giants
- Ice dwarfs
- Gas giants
<h3>Explanation:</h3>
The above given list contains the names of different planets depending upon their compositional characteristics. According to this list gas giants are heavier and then ice dwarfs and then ice giants.
Terrestrial which means planet earth is top on the list, which is lighter in weight than other planets.
Answer:
B) selective breeding
Explanation:
The different varieties at a dog show is consistent of selective breeding.
B) selective breeding is your answer.
Answer:
Because they do not live in the extreme environments.
Explanation:
Cell membrane has a vital role in separating the external environment of cell from its external environment. Just like eukaryotic cell, cell membrane of bacteria is also composed of proteins and lipids (phospholipids).
If we compare the structure of ancient bacteria's and modern bacteria's cell membrane then we notice that in archaebacteria or ancient bacteria the phospholipids of cell membrane are linked with ether (means they have glycerol backbones). whereas in modern bacteria they are linked through ester linkages.
So, the stronger glycerol backbones give the archaebacteria more stable cell membranes through which they are able to resist harsh environmental stresses like salt lakes, volcanic stress, boiling mud and hot springs. As modern bacteria do not always have to live under such stresses thats why they donot have ether-linked cell membrane.
Hope it helps!
Answer:
For [a] .....Yes
For [b]......No
Explanation:
Meiosis is known to be a process of reducing the number of chromosomes in a diploid to half.
And it should be noted that , meiosis requires the pairing of two chromosomes sets.
Therefore in this case, before meiosis can occur in the haploid, it must involves two haploids. This means that two individual haploid will fuse together to form diploid meiocyte, which will allow meiosis to occur.
This is the reason why meiosis can only takes place on haploid species.
In summary, it should be noted that, meiosis can only takes place in a diploid and two individuals haploid [ haploid species] that can fuse together to form diploid, but not in a haploid individual.
Natural selection could not occur without environment, and a act on animal.
