1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gnesinka [82]
3 years ago
7

Linda takes her pet German shepherd to a dog park and sees many different breeds of dogs. What is the term for any difference be

tween individuals of the same species?
A. evolution
B. adaptation
C. population
D. variation
Chemistry
1 answer:
miss Akunina [59]3 years ago
8 0

Answer:

The correct answer is option D. "variation".

Explanation:

Variation is a term used to describe the phenotype differences among individuals of the same species, such as the differences among the different breeds of dogs. There are two types of variation, inherited  and environmental variation. The first one results from the different genes in the offspring that are passed from the parents, and environmental variation results from the exposure of different conditions in the surroundings where individuals live.

You might be interested in
If an atom, such as hydrogen, is able to form a covalent bond, describe what happens when the electron shells of two atoms overl
Ratling [72]
If two shells overlap, they start to share electrons and thus, a bond is formed
7 0
3 years ago
What is the voltage of the voltaic cell Zn|Zn2+||Cu2+|Cu at 298 K if [Zn2+] = 0.2 M and [Cu2+] = 4.0 M? Cu2+ + 2e- → Cu Eo = +0.
OLga [1]

Answer : The voltage of the voltaic cell is 1.14 V

Explanation :

From the given cell representation, we conclude that

The copper will undergo reduction reaction will get reduced. Zinc will undergo oxidation reaction and will get oxidized.

The oxidation-reduction half cell reaction will be,

Oxidation half reaction:  Zn\rightarrow Zn^{2+}+2e^-

Reduction half reaction:  Cu^{2+}+2e^-\rightarrow Cu

Oxidation reaction occurs at anode and reduction reaction occurs at cathode. That means, gold shows reduction and occurs at cathode and chromium shows oxidation and occurs at anode.

The overall balanced equation of the cell is,

Zn+Cu^{2+}\rightarrow Zn^{2+}+Cu

To calculate the E^o{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

E^o_{cell}=E^o_{(Cu^{2+}/Cu)}-E^o_{(Zn^{2+}/Zn)}

Putting values in above equation, we get:

E^o_{cell}=(+0.34V)-(-0.76V)

E^o_{cell}=1.1V

Now we have to calculate the emf or voltage of the cell.

Using Nernest equation at 298 K :

E_{cell}=E^o_{cell}-\frac{0.0592}{n}\log \frac{[Zn^{2+}]}{[Cu^{2+}]}

where,

n = number of electrons in oxidation-reduction reaction = 2

E_{cell} = ?

Now put all the given values in the above equation, we get:

E_{cell}=1.1-\frac{0.0592}{2}\log \frac{0.2}{4.0}

E_{cell}=1.14V

Therefore, the voltage of the voltaic cell is 1.14 V

5 0
3 years ago
A student has a solution with a pH of 7. The student adds HF, hydrogen floride, to the solution, hoping to increases the pH of t
Allushta [10]
Low pH = high acidity.
HF has a very low pH, so when added to a solution, it will lower the pH of the solution and therefore make it more acidic. So the answer should be B.
5 0
3 years ago
GIVING BRAINLY, 5 STARS, FOLLOW AND HEARTS<br>as majority of substances heat up, they:​
melamori03 [73]

Answer:

Expand

Explanation:

When you heat up a substance it expands

3 0
2 years ago
Why do ocean waves make a good source of energy?
JulsSmile [24]

Answer:

Ocean waves contain tremendous energy potential. Wave power devices extract energy directly from the surface motion of ocean waves. In many areas of the world, the wind blows with enough consistency and force to provide continuous waves along the shoreline.

6 0
3 years ago
Other questions:
  • One atmosphere (atm) is equal to which of the following?
    11·2 answers
  • Which characteristic is used to identify minerals?
    9·2 answers
  • Explain how science can help you make more informed decisions about what to eat.
    6·2 answers
  • The mass of a watch glass was measured four times. The masses were
    9·2 answers
  • How was New York City able to clean to smog?
    7·1 answer
  • How many moles are in 25.58 grams of H20? SHOW WORK
    8·1 answer
  • The solubility of N2in blood at 37°C and at a partial pressure of 0.80 atm is 5.6 × 10−4mol/L. A deep-sea diver breathes compres
    8·1 answer
  • Based on shape, what is the predicted relative solubility of 1-butanol, isobutanol, and tert-butanol? Based on size,
    13·1 answer
  • (Atomic masses used are C = 12.0 g mol–1, O = 16.0 g mol–1, H = 1.01 g mol–1, Cu = 63.5 g mol–1,)
    10·1 answer
  • Does the orbiting nucleus of an atom have a positive, negative, or neutral charge
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!