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vlada-n [284]
3 years ago
7

The concentration of calcium inside a cell is 0.3%. the concentration of calcium outside the cell is 0.1%. how could the cell tr

ansport even more calcium to the inside?
Biology
1 answer:
Snezhnost [94]3 years ago
8 0
Bone density less calcium
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What are the characteristics of a good experiment?
lina2011 [118]

Answer:

The characteristics of a good/safe experiment are:

  • Equipment is used according to its purpose
  • Workers are wearing protective clothing and goggles
  • All directions are followed for a successful experiment
  • There is proper ventilation
  • Toxins are used responsibly
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  • All information from the experiment is recorded
  • Photographs are taken if necessary
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3 0
3 years ago
On what structures are genes located and what is their primary function?
padilas [110]

Explanation:

Genes are located on chromosomes, which are large pieces of DNA contained in a eukaryotic cell's nucleus.

8 0
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Each daughter cell resulting from mitotic cell division has exactly the same genetic composition. Select one: True False
sveta [45]

Answer: True

Explanation: The importance of mitotic cell division is to produce two daughter cells that are genetically identical. The genetic materials of the parent cell are arranged and moved towards the two spindle poles with the help of the spindles so that there will be an even distribution of the parent cell's genetic materials between the resulting two daughter cells.

6 0
3 years ago
identify the subcellular structure of the neuron that forms the basis for the transmission of nerve impulses. (2 points) describ
melisa1 [442]

The subcellular structures of neuron that forms the basis for transmission of nerve impulses are the synaptic vesicles.

What are the steps in impulse transmission between neurons?

  • The action potential or nerve impulse reaches the <u>axon</u> of neuron and depolarises the membrane.
  • Voltage gated Calcium channels open .
  • Arrival of action potential causes the synaptic vesicle to attach to presynaptic membrane.
  • Calcium influx triggers release of neurotransmitter.
  • This neurotransmitters bind to postsynaptic membrane and new impulses are created.

Synaptic vesicle under resting condition:

  1. The neurotransmitter molecules are stored in synaptic vesicles.
  2. If the neurotransmitter leak from the vesicles, they are destroyed by enzymes.
  3. During resting condition, they are placed randomly.
  4. When an impulse reaches the axon, vesicles are arranged in the presynaptic membrane.

Thus from the above we can conclude that, synaptic vesicles are the subcellular structures in transmission of nerve impulses and , under resting condition they are placed randomly.

To know more about transmission of nerve impulses :

brainly.com/question/840056

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4 0
1 year ago
What are the 3 main characteristics of populations?
MaRussiya [10]

Answer:

Population Size and Density: Total size is generally expressed as the number of individuals in a population. ...

Population dispersion or spatial distribution: ...

Age structure: ...

Natality (birth rate): ...

Mortality (death rate):

Explanation:

7 0
2 years ago
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