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
zhannawk [14.2K]
3 years ago
10

Which of the following is the best description of natural selection?

Chemistry
1 answer:
suter [353]3 years ago
3 0
The definition of natural selection is: the process by which organisms best suited to their environment are able to survive and produce more offspring.
 I would go with over production of offspring for the answer.
You might be interested in
Please help ASAP PLEASE
Delicious77 [7]
Number one may be electrons, protons, and neutrons.
number two may be protons and neutrons.
7 0
3 years ago
Organic compounds and their uses​
Leviafan [203]
Organic compounds essential to human functioning include carbohydrates, lipids, proteins, and nucleotides. These compounds are said to be organic because they contain both carbon and hydrogen
7 0
2 years ago
How many valence electrons does K+ have
Lera25 [3.4K]

Answer:

About one valence electron

Explanation:

Obviously, removing that electron gives us [Ar] (same configuration as K1+), which is a noble gas and has 8 electrons. Valence electrons are generally regarded as being 'the outermost electrons' for a given atom. Therefore, with neutral potassium, there is one valence electron

5 0
3 years ago
Read 2 more answers
hello frds need help (@_@;) The lower end of thistle funnel should be dipped in solution why Give reason .I will give brainlest
snow_tiger [21]

Answer:

The end of the thistle funnel should be dipped under acid to prevent the escape of gas from the thistle funnel.

Explanation:

hiii everyone

8 0
3 years ago
Read 2 more answers
A 46.9 gram sample of a substance has a volume of about 3.5 centimeters3. It is solid at a room temperature of 23ºC. Out of the
horrorfan [7]

Answer : (C) Hafnium is the most likely identity of the given substance.

Solution :  Given,

Mass of given substance (m) = 46.9 g

Volume of given substance (V) = 3.5 Cm^{3}

First, find the Density of given substance.

Formula used :    

Density=\frac{\text{Mass of given substance}}{\text{Voume of given substance}}

Now,put all the values in this formula, we get

Density=\frac{46.9 g}{3.5 Cm^{3} } = 13.4 g/Cm^{3}

So, we conclude that the density of given substance (13.4 g/Cm^{3}) is approximately equal to the density of Mercury and Hafnium (13.53 and 13.31 g/Cm^{3} respectively).

According to the question the substance is solid at room temperature but Mercury is liquid at room temperature. So, Mercury is not identical to the given substance.

Another element i.e, Hafnium is the element whose density is approximately equal to the given substance and also solid at room temperature. And we know that the melting point of solid is high.

So, Hafnium is the most likely element which is the identity of the given substance.

3 0
3 years ago
Read 2 more answers
Other questions:
  • How does an atom become a positive ion?
    14·2 answers
  • If liquids are liquids because they take the shape of their container, why isn't salt considered a liquid?
    15·2 answers
  • If 20 ml of gas is subjected to a temperature change from 10°C to 100°C and a pressure change from 1 atm to 10 atm what's the be
    12·1 answer
  • Which is an example of a chemical change?
    6·2 answers
  • Why are the optimum conditions for the Haber process a temperature of 450°C and pressure of 200 atmospheres?
    10·2 answers
  • Neodymium battery + sulfuric acid ——> neodymium sulfate + iron sulfate + boron + hydrogen. I have 5g of Nd2Fe14B and enough H
    9·1 answer
  • What does Raoult's law state?
    5·2 answers
  • According to the following reaction, how many grams of hydrofluoric acid will be formed upon the complete reaction of 25.6 grams
    14·1 answer
  • Can the structure of an atom be broken down into smaller parts?
    7·1 answer
  • OMG PLS HELP ASAP!! It’s my FINAL and I need help. PLS!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!