The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have v
ery different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common same time. Which of the following is the ancestor at about the most likely explanation for these data? A. Forelimb evolution was adaptive in people and bats, but not in whales.
B. Whales are not properly classified as mammals.
C. Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy
D. Genes mutate faster in whales than in humans or bats.
E. Humans and bats evolved by natural selection, and whales evolved by Lamarckian mechanisms.
Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy
Natural selection is the concept of evolution where organisms with favorable traits are selected(by nature) and reproduced and this process allows the organisms to adapt to the changing environmental conditions
The upper forelimbs of humans and bats have fairly similar skeletal structures which means that they might share a common ancestor in skeletal structure but are functionally different which means they share a homology with each other
The evolution of limbs of whales is also a part of forelimb adaptive evolution
Gene mutation rates of higher animals are pretty much similar
Whales are proper mammals and form a connecting link between fish and mammals
Nucleic acids are giant biomolecules made of monomers called nucleotides. Nucleotides have three components: pentose sugar (5-carbon sugar), phosphate group, and nitrogenous base.
In the Claritin commercial, the man is laying in the grass with a
beagle puppy. The beagle is a breed of small hound that is similar to a larger
foxhound that has approximately
220 million scent receptors. This is the reason why they are employed as
detection dog and not as guard dogs for they are usually friendly dogs.
