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​How does the comparison of limbs, like ones shown, provide evidence for evolution?
It shows that these animals do not share common ancestry
It demonstrates common ancestry
It provides evidence about their habitats
It is used to show the age of the organism
How does the comparison of limbs, like ones shown, provide evidence for evolution?
Which of these events does NOT need to occur in order for life to first evolve?
Scientists have found evidence that about 2.4 million years ago a gene regulating jaw muscles mutated and may have led to the more graceful human jaw we see today. The diagram below shows the skulls of 3 hominid species. Which statement below most closely explains the link between jaw size and hominid evolution?
A farmer noticed his spotted strawberries grow better in all weather types and resist insects on their own. His other varieties of strawberries required additional pesticides to resist insects. The next season, he decided to only plant spotted strawberries and get rid of all his other strawberries. What is a result of this farmer's action?
Whales are aquatic mammals that contain a pelvis bone. Even though it does not aid in its movement, the function must have been used by a common ancestor of the whale. Thus, the pelvis is which of the following evidences of evolution?
Miller & Urey experiment is widely accepted today because they were able to prove which of the following?
Structures that have the same FUNCTION but different STRUCTURES are...
Two distinct populations of the same fish species live in two ponds separated by land. A violent hurricane produces a storm surge that destroys the land dividing the ponds, causing the waters to merge. The two ponds merge becoming one big pond with fish from each population swimming around. Which answer correctly explains what evolutionary mechanism will affect the fish populations due to this flooding?
Which of these best explains why ostriches don't fly today but could fly millions of years ago?
Three species of lizards of the genus Gallotia are found on the Canary Islands, a chain of seven volcanic islands off the west coast of Africa. The easternmost island, Lanzarote, is the oldest, while the westernmost island, El Hierro, is the youngest. The distribution of lizard species is shown on the map.
Which statement about the ancestry of the lizards from the genus Gallotia is best supported by this information?
The diagram provided represents four different species of bacteria.
Which statement is correct concerning the chances of survival for these species if there is a change in the environment?
