Biology, 19.03.2021 19:00 FailingstudentXD
Scientists have discovered a fossil skeleton of a whale-like creature that lived in the early Eocene epoch. The skeleton shows an 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
Answers: 3
Biology, 21.06.2019 23:30
Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries
Answers: 2
Biology, 22.06.2019 05:30
What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?
Answers: 2
Biology, 22.06.2019 10:00
Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.
Answers: 1
Scientists have discovered a fossil skeleton of a whale-like creature that lived in the early Eocene...
Physics, 27.02.2021 22:40
English, 27.02.2021 22:40
History, 27.02.2021 22:40
History, 27.02.2021 22:40
Physics, 27.02.2021 22:40
Mathematics, 27.02.2021 22:40
Chemistry, 27.02.2021 22:40
Mathematics, 27.02.2021 22:40