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valentina_108 [34]
2 years ago
5

What main idea about the nature of the cell did historical scientists disagree on?

Biology
1 answer:
VLD [36.1K]2 years ago
7 0

Explanation:

Scientists didnt belive that there are cells untill robert hooke (1665). He observed the cells in a cork slice with the help of a PRIMITIVE microscope

Leeuwenhoek (1674), with the help of an improved microscope, discovered free living cells in pound water for the first time.

It was robert brown in (1831) who discovered the nucleus in the cell.

Purkinjie in 1839 coined the term 'protoplasm' for the fluid substance of the cell.

THE CELL THEORY, that all plants and animals are composed of cells and that the cell is the basic unit of life, was presented by two biologists, schleiden (1838) and schwann(1839). The cell theory was fuether expanded by virchow (1855) by suggesting that all cells aris form PRE-EXISTING cells. With the discovery of the electron microscope in 1940,it was possible to observe and understand the complex structure of the cell and its various organelles.

Well, thats the history of the discovery of cells.

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4 0
3 years ago
Read 2 more answers
A point mutation is shown in the mutated DNA sequence below. Will this mutation affect the
klemol [59]

Answer:

A. Yes, because an amino acid change has occurred.

Explanation:

The sequence given states that the codon CCG is changed to CAG. According to the codon table (attached), CCG codes for <u>proline</u> whereas CAG codes for <u>Glutamine</u>. Therefore, change in mutation has resulted into the change in amino acid. This would lead to the formation of a different protein.

8 0
3 years ago
What is waste water treatment ?
Scilla [17]
What is waste water treatment ?

“The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment.”

My source is from www.usgs.gov
8 0
3 years ago
Prokaryotes divide by binary fission, a form of asexual reproduction in which
evablogger [386]

Prokaryotes divide by binary fission, a form of asexual reproduction in which a cell divides into two cells with identical genetic information.

Explanation:

Binary fission and mitosis can be viewed as the same principle of  asexual reproduction to give out two identical cells. However, the major difference between the two is that binary fission is to prokaryotes and mitosis is to eukaryotes. Remember that prokaryotes do not have a true nucleus (they have a nucleoid) hence binary fission does not involve the dividing of the nucleus. Mitosis does.

Sexual reproduction is responsible for creating variation in offspring especially due to the process of meiosis in gamete development and subsequent fertilization of two gametes from different parents.

Learn More:

For more on binary fission check out;

brainly.com/question/13807858

brainly.com/question/917537

#LearnWithBrainly

6 0
3 years ago
The synaptic potentials produced by cell bodies (soma) and dendrites in the cerebral cortex create electrical activity that can
Oduvanchick [21]

Answer:

Electroencephalogram

Explanation:

In the cerebral cortex, cell bodies (soma) and dendrites produce the synaptic potentials that create an electrical activity that can be measured by electrodes placed on the scalp resulting in an <u>Electroencephalogram</u>.

a test or record of brain activity produced by electroencephalography.

Electroencephalography is an electrophysiological monitoring method to test or record brain activity.

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4 0
2 years ago
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