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belka [17]
3 years ago
7

Which brain vesicle gives rise to the midbrain and cerebral aqueduct?

Biology
1 answer:
Mariana [72]3 years ago
5 0

The mesencephalon gives rise to the midbrain and aqueduct of the midbrian(cerebal aqueduct). Both the prosencephalon and rhombencephalon develops in to the metencephalon and myelencephalon.  The telencephalon develops into the cerebrum and lateral ventricles. The diencephalon forms the thalamus, hypothalamus, and epithalamus. 

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Rainforests are not found in
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Answer:

B. Greenland

Explanation:

Rainforests are found in Alaska, Australia, and Africa, but not Greenland.

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PLZZZ HELPPP<br> Explain how rocks can be analyzed to determine the history of an area.
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Answer:

Well let's take Sedimentary rock for example, The Law of Superposition which measures the average age of Sedimentary rocks using rocks around it. So you would use that rocks below it are older and that Extrusions and Intrusions are younger than the rocks which are stable.

Explanation: Hope it Helps With Your Work!

6 0
2 years ago
Biologists have separated monera into two kingdoms according to the differences between the two groups. in which classification
ASHA 777 [7]
Because scientist found another criteria for classifying organisms such as their DNA composition

Evidences that Taxonomy uses to group or categorizes species range from <span><span>
1.       </span>"Fossil Records</span> <span><span>
2.       </span>Comparative anatomy</span> <span><span>
3.       </span>Comparative embryology</span> 
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5.       </span>Cellular structure</span> <span><span>
6.       </span>Behavior</span>" 
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7 0
3 years ago
Human cells have 46 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a structure cal
nevsk [136]

Answer:

The answer is 46 chromosomes.

Before mitosis, cell duplicates its DNA material so there are 46 chromosomes in duplicates and in total there are 46 x 2 = 92 sister chromatids. During mitosis, sister chromatids first join in the middle of the cell and then separate towards the opposite sides of the cell. After they separate, there are 46 sister chromatids on the one side and 46 sister chromatids on the other side. Each sister chromatid at the end of cytokinesis actually represents the chromosome of the newly formed daughter cell.

Explanation:

8 0
2 years ago
If a germ-line cell from a frog contains 10 picograms of DNA during G1 of interphase, then how many picograms of DNA would be pr
DIA [1.3K]

Answer:

10

Explanation:

The cell cycle is composed of three states: interphase, cell division and resting.

The interphase is composed of 3 phases: G1, S and G2 (in this order). During this state the cell prepares itself  for cell division. As part of the preparation the cell duplicates all its genetic material, that is, all its chromosomes. This duplication is done during the phase S.

During the meiotic cell division (composed of meiosis 1 and meiosis 2) a single diploid mother  cell (with duplicated chromosomes) produces four haploid daughter cells. the meiosis 1 produces two haploid cells with duplicated chromosomes, and the meiosis 2 produces 4 haploid cells with normal chromosomes (no duplicated).

If a germ-line cell from a frog contains 10 picograms of DNA during G1, then this cell will have 20 picograms of DNA before the product of the first meiotic division, and will have 10 picograms at the begining of the meiosis 2 (i.e prophase II)

7 0
3 years ago
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