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
RSB [31]
3 years ago
6

Fossils of the Dorudon, an aquatic mammal that lived over 40 million years ago, show a whale-like animal that had small, underde

veloped hind limbs
Which best explains how fossils like the Dorudon support the theory that plant and animal life has evolved over time? (SC.7.L.15.2)
They confirm that many animals have not evolved
They confirm that many animals have not evolved
They prove that all animals evolved from a single ancestor
They demonstrate that animals that dont evolve will die out


Plzzzzz fastt

Chemistry
1 answer:
irina [24]3 years ago
3 0

Answer:

They prove that all animals evolved from a single ancestor

You might be interested in
How many moles of Hydrogen gas must be used to make 0.75 mol of NH3?<br> N2+3H2 ---&gt;2NH3 *
sladkih [1.3K]

Answer:

1.125 moles of hydrogen are needed.

Explanation:

Given data:

Number of moles of ammonia formed = 0.75 mol

Number of moles of hydrogen needed = ?

Solution:

Chemical equation:

N₂  + 3H₂      →       2NH₃

Now we will compare the moles of ammonia and hydrogen.

                  NH₃         :           H₂  

                    2           :             3

                 0.75         :           3/2×0.75 = 1.125 mol

1.125 moles of hydrogen are needed.

5 0
3 years ago
According to the Lewis dot structure shown here, how many valence electrons does chlorine have?
trasher [3.6K]
Chlorine has 7 valence electrons
3 0
4 years ago
1. Except for special cases such as peroxides, oxygen has an oxidation number of _______ in compounds. A. +2 B. –1 C. +1 D. –2
egoroff_w [7]

Answer:

<em>The</em><em> </em><em>Typical</em><em> </em><em>Oxidation</em><em> </em><em>number</em><em> </em><em>of</em><em> </em><em>Oxygen</em><em> </em><em>is</em><em> </em><em>–</em><em>2</em><em>.</em>

<em>And</em><em> </em><em>as</em><em> </em><em>the</em><em> </em><em>question</em><em> </em><em>said</em><em>.</em><em>.</em><em>.</em><em> </em><em>its</em><em> </em><em>Oxidation</em><em> </em><em>changes</em><em> </em><em>to</em><em> </em><em>–</em><em>1</em><em> </em><em>when</em><em> </em><em>it</em><em> </em><em>is</em><em> </em><em>in</em><em> </em><em>Peroxides</em><em> </em><em>and</em><em> </em><em>–</em><em>½</em><em> </em><em>w</em><em>h</em><em>e</em><em>n</em><em> </em><em>i</em><em>t</em><em>s</em><em> </em><em>i</em><em>n</em><em> </em><em>SuperOxides</em><em>.</em>

<em>Correct</em><em> </em><em>Answer</em><em> </em><em>:</em><em> </em><em>Option</em><em> </em><em>D</em><em>.</em>

7 0
3 years ago
Why are chemical changes considered "unseen?"
Andrej [43]
Chemical changes are considered unseen because they occur at the atomic level, changing the actual structure of the thing.
5 0
3 years ago
Read 2 more answers
24. All elements found on the left side of the Periodic Table of
SashulF [63]

Answer:

Metals are located on the left side of the periodic table and are generally shiny, malleable, ductile, and good conductors.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • According to the following thermochemical equation, what mass of H2O (in g) must form in order to produce 488 kJ of energy?
    13·1 answer
  • What is the scientific term for rocks formed from magma?
    13·2 answers
  • Show a sample for calculating frequency from wavelength​
    12·1 answer
  • SO4 + KBr → SnBr2 + K2SO4 i need this balanced
    11·1 answer
  • Write a sentence using the term atomic theory
    8·2 answers
  • Which of the following statements is not accurate in regard to the first four energy levels?
    8·1 answer
  • CFx where x stands for a whole number. Measurements also show that a certain sample of the unknown compound contains 8.5 mol of
    12·1 answer
  • During a hurricane, what effect can the ocean have on the beach?
    12·1 answer
  • 5.Name the compound below
    10·2 answers
  • Define the term 'structural isomerism'.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!