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
BARSIC [14]
2 years ago
5

Scientists have discovered a fossil skeleton of a whale-like creature that lived in the early Eocene epoch. The skeleton shows a

n organism with large fore and hind limbs with distinct toes. Fossil skeletons of closely related species from later periods show organisms lacking hind limbs. Which conclusion does this observation best support?
A. Ancestors of whales may once have been able to walk.

B.Ancestors of whales had fewer bones than modern whales.

C. Whales and their ancestors have always been ocean dwellers.

D. Whales and their ancestors have always been the largest living ​
Biology
2 answers:
soldier1979 [14.2K]2 years ago
4 0
A. Ancestors of whales may once have been able to walk.
igomit [66]2 years ago
4 0

Answer:

A. Ancestors of whales may once have been able to walk.

Explanation:

You might be interested in
Can you help me please i will give you a branlist and it’s science
creativ13 [48]
The answer is A because c doesn’t make sense if it’s vibrating wouldn’t we feel or see it?
4 0
3 years ago
A passenger in a car is holding an open water bottle when the car stops suddenly. Why does the water in the bottle splash out wh
docker41 [41]

the force of bestop will fling you forward and the water will go to one side of the bottle and hit the side of the bottle and curved back up and come out because the force of

6 0
3 years ago
Read 2 more answers
 The tool that measures air pressure is called what?
sergiy2304 [10]

Answer: A barometer !

Explanation:

Hoped this helped ! :)

3 0
2 years ago
Human well-being is tied to biodiversity because:
Sloan [31]
B.
Humans are also part of ecosystems and if they cease to exist, human well being will be affected.
5 0
3 years ago
Why are 4 H+ needed for every ATP synthesized and exported by mitochondria, even though only 3 H+ need to be translocated by the
kykrilka [37]

Answer: One H⁺ ion ie required in converting ATP and inorganic phosphate to ATP

Explanation:During oxidative phosphorylation, high energy electrons released by hydrogen carriers are shuttled through the electron transport chain. The released energy is used to translocate 3 H+ ions from the matrix, creating an proton motive force, which will cause 1 H+ ion to move down the electrochemical gradient and diffuse back into the matrix (chemiosmosis) which is facilitated by ATP synthase. As the H+ moves through the ATP synthase this triggers the molecular rotation of the enzyme, synthesizing ATP

8 0
3 years ago
Other questions:
  • Which are structures of the excretory system
    7·2 answers
  • What component of a virus is injected into the infected cell?
    12·1 answer
  • This mountain slope towers over a town several hundred feet below.Which two weather events present the highest risk to the town?
    13·1 answer
  • How do many coal-powered factories change the environment?
    5·2 answers
  • Why do we rarely see food chains with quinary (5th level) consumers?
    8·2 answers
  • What is the main advantage to organisms that reproduce sexually is?
    9·1 answer
  • Select each correct answer. More than one answer may be correct.
    10·1 answer
  • During childbirth, a hormone produced by the pituitary gland causes muscles of the mother's uterus (or womb) to contract. The mo
    12·2 answers
  • True or false?Metamorphism means” a change in form”
    8·1 answer
  • Please help I’m science!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!