Answer:
The correct answer would be :
1 volume = 369.6
2. density = 0.9199
Explanation:
Given :
dimensions : 5.5cm - 8.0cm - 8.4cm
Mass : 340 g
Formula :
volume = side * side * side
density = mass/ volume
Solution :
volume of ice cube would be
= 5.5cm * 8.0cm * 8.4cm
= 369.6 m³
density of ice cube would be
= 340/369.6
=0.9199
Thus, the correct answer would be
1 volume = 369.6
2. density = 0.9199
The single-cell organism that does not contain a well-defined nucleus and membrane are called prokaryotes. The genetic information is contained in the nucleoid of the cell.
<h3>What is a nucleoid?</h3>
Nucleoid is a region in the cytoplasm of the prokaryotic cell that is an irregular-shaped structure that consists of the genetic material of the cell.
The process of the replication and transcription of the DNA and RNA of the prokaryotic cell occurs here and is different from the eukaryotic nucleus by lacking a nuclear membrane.
Therefore, prokaryotic genetic material is contained in the option D. nucleoid of the cell.
Learn more about the nucleoid here:
brainly.com/question/5083911
Answer:
Epigenetics.
Explanation:
Epigenetics is the study of phenotypic changes which are heritable but not related to changes in the DNA sequence. It is influenced by several factors including the environment.
An example of epigenetics is DNA methylation: addition of methyl group to some part of the DNA that prevents that part from being expressed. Other examples include history modifications.
In summary, Epigenetics describes inheritance through other mechanisms than through the DNA sequence.
Answer:
Early scientists didn't have any tools to observe them.