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zhuklara [117]
3 years ago
9

Electric current is the flow of ________ through a substance.

Biology
2 answers:
Aleonysh [2.5K]3 years ago
4 0

Answer:

A current is a flow of electrons for this to happen there must be a closed circuit.

- The electricity is nothing but a flow of free electrons present in the external surface of the electricity conducting substance.

The flow direction of this electron flow is also the direction of electricity flow.

- There is a type of electrical circuit which is known as the closed circuit. This circuit is completely connected with the two terminals of the battery and there are no hindrances in the path of electricity flow in these circuits. That's why current can only flow through these complete circuits.

antoniya [11.8K]3 years ago
3 0

Answer:

Electrons

Explanation:

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What are the uses of the energy provided by ATP in the living cells?
kkurt [141]

Answer:

ATP functions as the energy currency for cells. It allows the cell to store energy briefly and transport it within the cell to support endergonic chemical reactions. The structure of ATP is that of an RNA nucleotide with three phosphates attached.

5 0
3 years ago
One end of the rope is vibrated to produce a wave with a wavelength of 0.25 m. The
evablogger [386]

Answer:

3) 0.75m/s

Explanation:

The wavelength of a wave is calculated using the formula;

λ = v/f

Where!

λ = wavelength of wave (m)

v = velocity or speed (m/s)

f = frequency of wave (Hz)

According to this question, one end of a rope is vibrated to produce a wave with a wavelength (λ) of 0.25 m and frequency (f) of 3.0 Hz.

Using λ = v/f

v = λ × f

v = 0.25 × 3

v = 0.75m/s.

5 0
3 years ago
A plasmid used in recombinant DNA cloning must contain
oksian1 [2.3K]

Answer:

D. Multiple antibiotic resistance genes.

Explanation:

A plasmid with multiple antibiotic resistance genes is important during cloning as it helps in selectivity of the specific clones during transformation of bacteria.  

7 0
3 years ago
Which term describes what happens when a wooded area is cut down to build a shopping mall?
kenny6666 [7]
Deforestation I think
7 0
3 years ago
The very rare Bombay blood phenotype in humans results in blood type O because of the lack of both the A and B antigens in indiv
madam [21]

Answer:

The probability that the child will have type blood B equals <u>3/16</u>.

Explanation:

<u>Available data:</u>

  • Individuals with the rare Bombay blood phenotype lack both the A and B antigens in individuals and/or are of hh genotype.
  • Cross between two parents that are both of I A I B Hh genotype

Cross: IAIB Hh    x    IAIB Hh

Gametes) IAH, IAh, IBH, IBh  

                IAH, IAh, IBH, IBh

Punnett square)        IAH            IAh         IBH         IBh

                   IAH      IAIAHH     IAIAHh    IAIBHH   IAIBHh

                   IAh       IAIAHh     IAIAhh     IAIBHh    IAIBhh

                   IBH      IAIBHH     IAIBHh     IBIBHH   IBIBHh

                   IBh       IAIBHh     IAIBhh      IBIBHh   IBIBhh

F1) Genotype

  •     1/16 IAIA HH
  •     2/16 IAIAHh
  •     1/16 IAIAhh
  •     2/16 IAIBHH
  •     4/16 IAIBHh
  •     2/16 IAIBhh
  •     1/16 IBIBHH
  •     2/16 IBIBHh
  •     1/16 IBIBhh

    Phenotype

  •     3/16 Blood type A
  •     6/16 Blood type AB
  •     3/16 Blood type B
  •     3/16 Blood type 0  
3 0
3 years ago
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