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
Alenkinab [10]
4 years ago
8

7. When did whale ancestors begin living full time in the water?

Biology
1 answer:
antoniya [11.8K]4 years ago
8 0
Around 40 million years ago

The earliest whales that we think were fully aquatic, that is, they never left the water, are found around 40 million years ago, during the middle Eocene. That means that the transition from terrestrial animals to fully aquatic animals took about 12 million years.
You might be interested in
I want a sister my parents are so so boring
BARSIC [14]

Answer:

I can be ur sister

Explanation:

4 0
2 years ago
A wave with a frequency of 0.5 Hz and a speed of 10 m/s has a wavelength of a. 50 m. c. 20 m. b. 0.5 m. d. 0.2 m. Please select
Blababa [14]
The correct option is c. (20 m) .
As the formula to calculate wavelength is :
wavelength = wavespeed / frequency
8 0
4 years ago
If a single base pair gets damaged and goes missing from an rna, what would most likely happen?
Vilka [71]

A frame-shift mutation would occur. This is because a deletion will cause a change in codon sequence from the point of mutation to the end of the mRNA.  If the mutation is closer to the start of the mRNA, the larger the effect of the mutation on the translated protein.

8 0
3 years ago
Explain how meiosis promotes variation in a species.
SCORPION-xisa [38]
In meiosis, the chromosome pairs do the crossing over where there is an exchange of genetic material between them and because of it the chromatids held together by the centromere are no longer the same.
7 0
3 years ago
When scientists report their results from their scientific investigations, what should scientists include and NOT include in the
Elena L [17]
<h3><u>Answer:</u></h3>

<u>When scientists report their results from their scientific investigations, scientists should include the content that answers the following questions</u>

  • Was our hypothesis correct?
  • Do we need to run experiment again,changing a variable?
  • If the results did not support the hypothesis then add information about reason why it happened.

<u>Scientists should not include the following </u>

  • It should not oppose your results.
  • Conclusions should not be in a negative tone.
6 0
4 years ago
Other questions:
  • You are in the delivery room caring for a preterm newborn at 27 weeks' gestation. Resuscitation has been completed and the baby
    11·1 answer
  • The brain of a person with alzheimer's disease shows excessive amounts of
    15·2 answers
  • Both mitochondria and chloroplasts _____. both mitochondria and chloroplasts _____. reduce nad+, forming nadp use an h+ gradient
    10·1 answer
  • Oil glands are also called
    12·2 answers
  • Which process is being described when a drug is followed from oral absorption, through to finding traces of the drug in urine an
    7·1 answer
  • How can a Punnett square predict results of crossbreeding in peas?
    7·2 answers
  • You are doing research on nervous system diseases; particularly, one that dissolves lipids. What part of the neuron would you ex
    15·1 answer
  • Velocity vs time <br> Which represents a linear graph?
    5·1 answer
  • What would happen to plants if animals didn’t breathe
    12·1 answer
  • All organisms need food for energy. But how does an organism's body actually get energy out
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!