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MArishka [77]
2 years ago
5

Fill in the blank: The variable that is changed by the scientist in an experiment is the

Biology
1 answer:
Sloan [31]2 years ago
7 0

Answer:

A

Explanation:

Sometimes called the manipulated variable. The part of the experiment that is manipulated or changed by scientists or persons performing the experiment.

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DNA replication occurs prior to meiosis and _________.
Evgesh-ka [11]
A. Mitosis is the correct answer.

DNA replication occurs in the two major types of cell division: mitosis and meiosis.

Mitosis is the splitting of a normal cell into two daughter cells and involves complete replication of the cells DNA to produce two identical copies. Meiosis is a specialised and more complex two-stage form of cellular division related to sex cells and involves DNA replication followed by an exchange of DNA material within/between the chromosomes to mix genes from both parents and produce daughter cells with half the number of chromosomes as the original parent cell. Animal sperms and eggs are examples of cells produced by meiosis and contain half the number of chromosomes as normal cells. When combined during fertilization the egg and sperm produce a cell with the full compliment of chromosomes.

Cytokinesis is a part of the cellular life cycle that is related specifically to the division of the cytoplasm (basically the "soup" of material inside the cell). It is part of the cellular division process but not specifically related to nuclear division (i.e. DNA replication).

Transcription relates to the production of RNA from DNA which is then used for protein synthesis. DNA is not replicated during the transcription process, rather, this is a separate process critical for the production of proteins by the cell.
6 0
3 years ago
Plant cells are generally larger than animal cells. A True B False​
DiKsa [7]

Answer:

False

Explanation:

Eukaryotes are larger

6 0
2 years ago
Read 2 more answers
A cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. Wh
vazorg [7]
<span>c. Metaphase

</span><span>The two identical daughter cells resulting from mitosis and cytokinesis are identical in the following ways:1. Mitosis occurs when the nucleus of the cell divides into two identical nuclei, each with the same type and number of chromosomes. The cell's DNA is duplicated during this phase. Sometimes the cell's DNA isn't copied properly resulting in cancer-type cells. 2. Cytokinesis is when the cytoplasm divides into two identical daughter cells. Each cell is genetically identical and both are a similar size. </span>
5 0
3 years ago
Why do plants need the element nitrogen
Artyom0805 [142]
Nitrogen is a major component by which plants use sun energy to produce sugars from water and carbon dioxide. (It is also a major component of amino acids)
7 0
3 years ago
How far is each planet from the sun.................
artcher [175]

Answer:

1. Mercury: 31.197 million mi

2. Venus: 66.81 million mi

3. Earth: 92.96 million mi

4. Mars: 141.6 million mi

5. Jupiter: 483.8 million mi

6. Saturn: 890.8 million mi

7. Uranus: 1.784 billion mi

8. Neptune: 2.793 billion mi

Explanation:

Hope this helps ;}

3 0
3 years ago
Read 2 more answers
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