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
Cellulose, chitin, and peptidoglycan are all considered as
carbohydrates. Now in the molecular level of these carbohydrates, structural polysaccharides exist as sets of long, parallel
strands that are linked to one another. Due to this arrangement, pulling
and pushing forces are being withstand.
a parasitic bacterium which lives in the primate bladder, waste disposal organs, genital, and respiratory tracts, is thought to be the smallest known organism capable of independent growth and reproduction
The correct answer would be C.seasonal changes in the amount of daylight. Since leaves require sunlight in order to perform photosynthesis to keep the tree alive, when seasonal changes occur where there is not enough sunlight throughout the day, trees go dormant for the season until conditions are right.
