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max2010maxim [7]
2 years ago
12

Why does electrical current always flow from areas of negative charge to areas of positive charge ?

Biology
1 answer:
AlladinOne [14]2 years ago
7 0
So, in metals where the charge carriers (electrons) are negative, conventional current is in the opposite direction as the electrons. ... In other conductive materials, the electric current is due to the flow of both positively and negatively charged particles at the same time.
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What are embryonic stem cells more useful than other stem cells?
creativ13 [48]
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5 0
3 years ago
During an experiment, if you purposely change the temperature to test a hypothesis, the temperature is called the a. manipulated
vodomira [7]

Answer:

Option a (manipulated variable) would be the appropriate choice.

Explanation:

  • To analyze the influence on something like a dependent variable, another modified variable seems to be an important variable responsive to modifications in quite an analysis.
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The other options offered are not relevant to the situation described. So, the solution above is the best one.

5 0
3 years ago
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Kazeer [188]

Answer:

BMR ;  Basal Metabolic Rate

Explanation:

MR is  the rate of energy expenditure per unit time by endothermic animals at rest....

Metabolic comprises the process that the body needs to function.

Basal metabolic rate is the amount of energy per unit of timethat a person  needs to keep the body functioning at rest

3 0
3 years ago
Chromosome is to Nucleus as DNA is to ?
kakasveta [241]

Chromatin

Chromosome, the highest packing level of DNA, is packed in nucleus. DNA strand itself is packed in chromatin. Chromatin is DNA packaging into 30nm fibers that involve DNA strand with scaffolding around DNA proteins, like histones, in eukaryotic cells’ nucleus.

Explanation:

The DNA strand is folded into nucleosomes, bead-like structures on the DNA and fold up into the 30nm fibers. During meiosis and mitosis, the chromatin is super-coiled up into thicker fibers called chromosomes. Chromosomes within the nucleus can be viewed by a light microscope in a cell in metaphase.

Learn More:

For more on levels of DNA check out;

brainly.com/question/8157150

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The answer is Nuclear envelope.

Basically, the Nuclear envelope is an outer shell that protects the cell (which includes the dna) from any harmful things.

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3 years ago
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