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Juliette [100K]
3 years ago
14

The combined observations of Matthias Schleiden, Theodor Schwann and Rudolph

Biology
1 answer:
kobusy [5.1K]3 years ago
4 0

Answer:

The option 'All cells contain a nucleus' is not a part of the cell theory.

Explanation:

The cell theory proposed by scientists illustrates that every organism whether prokaryotic or eukaryotic is made up of a cell or different kinds of cells. It also that explains that cells are made from living things. According to the cell theory, cells are termed as the basic unit of life, without which life is not possible.

The cell theory does not claim that every cell must have a nucleus because many cells like cells of prokaryotes lack nucleus. Their genetic material is dispersed in the cytoplasm.

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Deffense [45]
Answer the one i just posted
8 0
3 years ago
If a lake where bacteria reside were to freeze, bacteria could survive by __________.
Lynna [10]
There are bacteria, like the Pseudomonas fluorescens and Marimonas protea, that can reside even in frozen surfaces. They do it by entering a dormant state where they wait patiently to be free from ice and grow again. 

Bacterial adaptation to cold surroundings also involves changes in their membrane composition and translation and transcription machinery. This includes bacterial conjugation. 

The answer is A.


6 0
3 years ago
You examine an epithelial cell (skin cell) and notice the chromosomes are visible however it appears there are two nuclei in the
krek1111 [17]

Answer:

The best explanation if we observe an epithelial cell with chromosomes are visible and two cell nuclei is that the cell has just gone through telophase but not cytokinesis (option b).

Explanation:

A somatic cell, when found in mitosis, exhibits the chromosomes distributed in both poles and the outline of two nuclei in the telophase phase, just before cytokinesis.

In mitotic telophase:

  • Chromatids, which are chromosomes, are found in the cell poles.
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  • The chromosomes begin to turn into chromatin.
  • Disappearance of the mitotic spindle, duplication of organelles and cytoplasmic invagination.

The division and differentiation of the nuclei in telophase is called karyokinesis. Later, cytokinesis occurs, where the daughter cells are separated.

The other options are not correct because:

<em>     a and d. In the other phases described, </em><em><u>S and G1,</u></em><em> no chromosome distribution is observed at the poles.</em>

<em>     c. A somatic cell does not experience </em><em><u>meiosis</u></em><em>.</em>

6 0
2 years ago
True or False: Modifier 25 may be reported by hospital and physician (or other qualified healthcare professional) to indicate th
qwelly [4]

Answer:

True

Explanation:

In a medical procedure, it is essential to report if the patient needed an additional care or service that is more than the standard procedure or care. This is essential for all qualified healthcare providers and professionals. Based on the fact sheet in Modifier 25, the answer to the question above is true.

7 0
3 years ago
While plant and animal cells have structural similarities, they also differ in a few ways, including in shape. Plant cells tend
vovangra [49]

Because many of the organells in the different cells tend to give the cells their shape including the cytoplasm.

7 0
3 years ago
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