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BradFarquharson472
06.08.2021 •
Biology
What is the source of traits that can become more common in a population?
Question 1 .
Experimenting with new behaviors as the organism grows.
Experiences organisms gain during their lifetime.
Mutations in their genes.
Actively developing them with practice, like getting more muscular.
A species of fish has red and white colors. Over time, white fish become more common in the population.
Which statement is a reason this change can happen?
Question 2 .
A predator migrated into the area, and it could see light-colored fish.
A predator migrated into the area, and it had trouble locating red-colored fish.
A predator migrated into the area, and it had trouble locating fish of any color.
A predator migrated into the area, and it had trouble locating white-colored fish.
What is speciation?
Question 3.
A species going extinct in an area.
The formation of a new species from an existing population.
Traits that are advantageous for survival becoming more common in a population.
A major mutation in a few individuals of a population.
Question. 3
Before the Industrial Revolution, the peppered moth in England was a small moth that would live on white-barked trees. Most of the moths were light-colored because these moths could blend in and hide from predators. Darker-colored peppered moths would be easily eaten. However, factory pollution caused many of the trees to become darker colored from soot.
Based on this information, what is the most likely way that the population would change over time?
All the moths would begin producing dark coloring to avoid being eaten. Over time, all moths in the population would carry the dark-colored genes.
Darker-colored moths would be better able to hide on the polluted trees than the light-colored moths and would produce more offspring. Over time, more moths in the population would carry the dark-colored genes.
The moth population would migrate to a less polluted area. Over time, all the moths would be light colored.
The moth population would evolve behavioral adaptations to clean the trees of soot. Over time, all moths in the population would have the behavioral adaptation.
Question 5.
The population of a plant-eating mammal is changing to have longer and longer necks with each generation.
What is the most likely reason for this?
The parents care for longer-necked offspring and leave the other ones to die.
Having longer necks is a survival advantage.
Individual mammals get a slightly longer neck due to physical practice. They transfer this to their offspring.
Having longer necks is a common mutation that happens often.
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