A group of students studied four different cell specimens under a microscope and recorded information about each cell in this table.
Characteristics of Four Cell Specimens
Cell Membrane
Chloroplasts
Yes
Yes
Cell Specimen Cell Wall
Cell 1
Yes
Cell 2
No
Cell 3
Yes
Cell 4
No
DNA in Nucleus
Yes
Yes
Yes
No
Yes
No
No
Yes
-
Yes
Which cell specimen is a prokaryote?
A Cell 1
B Cell 2
C Cell 3

Cell 3

Explanation:

One of the unique main characteristics that differentiates a prokaryote from a eukaryote is the absence of presence of nucleus in their cell, and where their DNA is found.

In prokaryotic cells, nucleus is absence. The DNA of prokaryote is not found in a nucleus, rather, it is contained in a region referred to as nucleoid.

Therefore, the specimen that does not have DNA in nucleus is definitely a prokaryote.

Cell 3 is a prokaryote.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.

what is the statement?