Which of these statements best explains how fossil records provide evidence to the scientific theory of evolution?A.They show how natural selection happened on Earth by chance.
B.They show how organisms choose to adapt to changing Earth conditions.
C.They prove that structure and location of remains of organisms depict past events.
D.They prove that natural selection always leads to greater complexity in organisms.
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Answers

Answer 1
Answer:

your answer would be C

hope i helped


Related Questions

At equilibrium, a sample of gas from the system is collected into a 4.00 L flask at 600 K. The flask is found to contain 3.86 g of PCl₅, 12.7 g of PCl₃, and 13.3 g of Cl₂. What are the values of Kc and Kp for this reaction?
What is the percent by mass of oxygen in propanal, CH3CH2CHO?(1) 10.0% (3) 38.1%(2) 27.6% (4) 62.1%
Which type of reaction produces the most dangerous radioactive waste?
As the density of a substance increases, the volume of a given mass of that substance__.a. Increasesb. is not affectedc. decreasesd. fluctuates
how do two oxygen atoms cancel out each other if they pull in opposite directions and how does the molecule become nonpolar

What type of charge does an neutron

Answers

Neutrons don't have a charge. they're neutral.
protons= positive
electrons= negative

Here I will give you all the charges and the names:

Neutrons: Neutral, it means no charge at all 
Protons: Positive
Electrons: Negative

Which of the following statements about ionic bonds is false?A) the resulting compound in a water solution can conduct electricity.
B) the resulting compound cannot be dissolved in water.
C) the resulting compound forms solid crystals.
D) the resulting compound has high melting and boiling points.

Answers

The answer is B) the resulting compound cannot be dissolved in water. Ionic compounds are, in fact, very soluble in water. They are known to dissociate in aqueous solutions, producing ions or charged atoms. This makes aqueous solutions of ionic compounds good conductors of electricity. As solids, ionic compounds form salt crystals. They have high melting and boiling points due to the strong ionic bond that holds them.

A solution containing large amount of solute in comparison to solvent is... A ) aqueous,b. concentrated,
c. Diluted, and
d. soluble

Answers

A solution containing large amount of solute in comparison to solvent is concentrated. Meaning the solute's concentration is high. The answer to this question is letter "B" or "B. Concentrated". I hope this helps you on your assignment. 

the answer will be b)

What is the percent composition by mass of nitrogen in NH4NO3 (gram-formula mass = 80.0 grams/mole)?(1) 17.5% (3) 52.5%
(2) 35.0% (4) 60.0%

Answers

Answer:

The correct option is (2) 35.0%

Explanation:

If we want to calculate the percent composition by mass of nitrogen in NH4NO3 we first need to calculate the mass of nitrogen in one mole of NH4NO3.

Because of the molecular form of NH4NO3 (it has 2 ''N'') we know that one mole of NH4NO3 contains 2 moles of N.

The molar mass of N (nitrogen) is 14.0067(g)/(mole)

This means that 1 mole of N contains 14.0067 grams of N.

Because we have 2 moles of N ⇒ (2moles).(14.0067(g)/(mole))=28.0134g

We know that in 1 mole of NH4NO3 we have 2 moles of N(28.0134 g of N).

To calculate the percent composition by mass of nitrogen we need to divide the mass of nitrogen in one mole of NH4NO3 by the mass of one mole of NH4NO3 and then multiply it by 100.

We know that in 1 mole of NH4NO3 there are 80.0 g of NH4NO3 (Because of the molar mass data) ⇒

((28.0134g)/(80.0g)).100=35.016 % ≅ 35.0%

We find that the percent composition by mass of nitrogen in NH4NO3 is 35.0%

We conclude that the correct option is (2) 35.0%

gram-formula=80.0grams/mole will be 35.0%

A solution has a [OH-] = 8.6 x 10-5. Answer the following questions.

pOH =
pH =
[H+] =

Answers

Answer: pOH= 4.06

pH= 9.94

[H^+]=1.14* 10^(-10)M

Explanation: pOH is the negative logarithm of OH^- concentration.

pH is the negative logarithm of H^+ concentration.

pOH=-log[OH^-]

pOH=-log[8.6* 10^(-5)]=4.06

2) pH+pOH=14

pH=14-4.06

pH=9.94

3) pH=-log[H^+]

9.94=-log[H^+]

[H^+]=1.14* 10^(-10)M

pOH = 4
pH = 10
[H+] = 1 X 10^-10

Which of the following renewable energy sources can be used for electricity, vehicle fuel, and heat?

Answers

The answer would be Biomass