subject
Biology, 17.07.2019 09:50 meganxc98

Read through the following observations. 1. some snakes have pelvic bones that sometimes sprout protrusions called "pelvic spurs" which serve little purpose. 2. paleontologists have found the remains of an extinct, aquatic, snake-like lizard with miniature vestigial forelimbs. 3. whales and some dolphins are marine mammals with hip bones that serve no purpose. 4. a dolphin was found that developed small hind flippers. based on these observations, what generalization can you make about the evolution of these animals? a). whales and snakes have been evolving to be similar to walking animals. b). whales and snakes most likely evolved from snake-like marine lizards. c). whales are more closely related to snakes than to other marine mammals. d). whales and snakes must have evolved from four-legged animals.

ansver
Answers: 1

Another question on Biology

question
Biology, 21.06.2019 14:00
During the process of meiosis, special cells called gametes are formed. gametes only have half the number of chromosomes that the other cells in the body have. what form of reproduction do organisms that produce gametes use?
Answers: 3
question
Biology, 21.06.2019 18:00
Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of this? answer, i will give brainiest to first person to get it right.
Answers: 1
question
Biology, 22.06.2019 02:50
Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?
Answers: 1
question
Biology, 22.06.2019 05:00
2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?
Answers: 3
You know the right answer?
Read through the following observations. 1. some snakes have pelvic bones that sometimes sprout prot...
Questions
question
Physics, 19.11.2021 19:20
question
Physics, 19.11.2021 19:20
question
Mathematics, 19.11.2021 19:30
Questions on the website: 13722367