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
saul85 [17]
3 years ago
15

How do helpful variations increase in a species over time?

Chemistry
1 answer:
Vladimir [108]3 years ago
7 0

Answer:

through natural selection

Explanation:

Natural selection is the driving mechanism of the evolution of species. Organisms can survive more in an environment if they are capable to adapt the changing environmental conditions. After surviving they are also able to pass their modified trait into their future generations (evolution).

Helpful variations accumulate through natural selection, as the organisms that are better adapted to their environment reproduce offspring with the same variations.

You might be interested in
PLEASE HELP ME!!!
ohaa [14]

Answer:

1045

Answer: 1045 J of energy was released on cooling the down the water from 20 °C to 10 °C.

4 0
3 years ago
Read 2 more answers
when 45 grams of copper (ii) carbonate are decomposed with heat how many grams of carbon dioxide will be produced
Maksim231197 [3]

Answer:

16.02 g

Explanation:

the balanced equation for the decomposition of CuCO₃ is as follows

CuCO₃ --> CuO + CO₂

molar ratio of CuCO₃ to CO₂ is 1:1

number of CuCO₃ moles decomposed - 45 g / 123.5 g/mol = 0.364 mol

according to the molar ratio

1 mol of CuCO₃ decomposes to form 1 mol of CO₂

therefore 0.364 mol of  CuCO₃ decomposes to form 0.364 mol of CO₂

number of CO₂ moles produced - 0.364 mol

therefore mass of CO₂ produced - 0.364 mol x 44 g/mol = 16.02 g

16.02 g of CO₂ produced

8 0
3 years ago
Which color changes represent a positive reaction for the presence of starch using the iodine test?
-BARSIC- [3]
Looking at a ph level color chart, it should be moving to more acidic if it’s positive
3 0
3 years ago
What are the reference points in thermometer with Celsius scale?
kupik [55]
The most likely answer is the boiling point and freezing point of water.  The Celsius scale starts at the freezing point of water (0°C) and than scaled so that 100°C fell on the boiling point of water.

I hope this helps.  Let me know if anything is unclear. 
7 0
3 years ago
What evidence would support Maria's claim that the fossilized remains are that of a bird, class Aves, instead of a turtle, class
lora16 [44]

Your answer would be C.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Describe the contributions made by Oparin, Haldane, Miller, and Urey toward understanding the origin of organic molecules.
    7·1 answer
  • What is the difference between an atom and an element
    15·1 answer
  • In a chemical equation, which symbol should be used to indicate that a substance is in solution?
    15·2 answers
  • What gases occur in the same percentages throughout the layers of the atmosphere?
    9·1 answer
  • 18. Which two particle diagrams each represent a sample of one substance? Key O = atom of oxygen = atom of hydrogen 0 = atom of
    9·1 answer
  • How did scientist discover that earths outer core is liquid
    9·1 answer
  • If atoms of a halogen nonmetal (Group 17) gains one electron, the atoms the have __.
    6·2 answers
  • reativity of alkali metals increases down the group while reativity decreases down the group in helogens ​
    14·1 answer
  • Plant cells have a cell wall instead of a cell membrane - true or false​
    15·1 answer
  • Aluminum oxide breaks down into it elemental components when electric current is applied.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!