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insens350 [35]
3 years ago
8

Need help pleasee anybody

Biology
2 answers:
rjkz [21]3 years ago
6 0

The first one since your doing on the whole neighborhood and not just that one location. You need find the average soil quality and so you need to sample 10 different locations in that neighborhood.

amid [387]3 years ago
6 0

Answer:

the first one

Explanation:

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What do we mean when we refer to a cell as differentiated?
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Answer:

We mean that a cell changes to another type of cell.

Explanation:

<em>Stem cells </em>are a type of cell that has the potential to become a specialized cell, this change or differentiation, is possible thanks to the activation or deactivation of certain genes that promote (or inhibit) the expression of certain proteins that origins different types of cells (fmuscle cells, osteocytes, neurons). This differentiation happens when the cells receive cues internally ( through signals or contact between a group of cells and another or through transcription factors) or externally.

Then, a differentiated cell is a cell that had gone under the previously described process.

I hope this information is useful to you!

6 0
2 years ago
Any membrane – bound structure inside a cell that performs a specific(e.g vacuoles store substance in the cell) is known as what
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Organelle

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3 years ago
Which of the following statements about cardiac muscle is true? a. Cardiac muscle is like smooth muscle, because smooth muscle h
Aleonysh [2.5K]

Answer:

c. Cardiac muscle contains bands like skeletal muscle, but its contractions are involuntary like smooth muscle.

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Cardiac muscle is also referred to as myocardium and it's one of the three (3) muscles found only in the heart of vertebrates, the other two (2) being smooth muscle tissue and skeletal muscle tissue.

Cardiac muscle contains bands like skeletal muscle referred to as sarcomeres (contractile units), but its contractions are involuntary like smooth muscle and it's typically being regulated by the sinoatrial node of the heart.

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2 years ago
How does newtons law of universal gravitation apply to earth and the moon
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Newton proved that the force that causes, for example, an apple to fall toward the ground is the same force that causes the moon to fall around, or orbit, the Earth. This universal force also acts between the Earth and the Sun, or any other star and its satellites. Each attracts the other.
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Ivahew [28]
Could you expand please?
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