Question

Mutations are NEVER beneficial.

Answer 1

Mutations are NEVER beneficial.
TRUE OR FALSE

Answer 2

Bactrian camels, dromedaries, llamas, and alpacas are all members of the same taxonomic family, Camelidae. Members of this family all have two toes, no hooves, true canine teeth, and a split upper lip. The family Camelidae originated in North America. The physical features of animals in this family and the family’s geographical origin provide evidence that all these animals —
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live in the same type of ecosystem
have slowly evolved to become herbivores
have a common ancestor
exchanged DNA at some point in the past

Answer 3

In 2010, scientists excavated a skull fossil that provides evidence of a newly discovered species of big cat. Based on the evidence, scientists hypothesize that big cats branched off from smaller wild cats about 6 million years ago. Which of these resources did the scientists most likely rely on to form their hypothesis?
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A food web showing feeding relationships of organisms where the fossil skull was found
Population and migration data for small wild cats living in the ecosystem where the skull was found
The fossil record and DNA comparisons of big cats and small cats
The historical record of interactions between different species of big cats
Natural selection is the process through which populations of living organisms adapt and change.

An example of this is the peppered moth, which maintained it's ability to camouflage itself (hide in it's environment) through natural selection of darker colored wings in response to a darkening of it's environment.

Which of the following would be another example of natural selection? (MARK ALL THAT APPLY)
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an increase in insecticide resistant insects
deer mice evolving lighter colored fur to better blend into their surroundings
a human gaining 20 pounds of muscle through diet and exercise
chicks dyed spring colors by humans

Answer 4

Analogous structures look different but function the same. For example, the wings of a bird and butterfly have very different structures but have the same function. THIS DOES NOT INDICATE A COMMON ANCESTOR.

Homologous structures look the same but function differently. For example, the wings of a bat and the arms of a human. They have a similar internal bone structure but serve very different purposes. THIS DOES INDICATE A COMMON ANCESTOR.

What types of structures are shown below, analogous or homologous?
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