Factors Affecting Biological Diversity Answers

Two insect groups vary genetically by two genes. When put together, they were able to reproduce and produce offspring that could also breed. Which best describes this insect population?

A population contains short plants and tall plants. The short plants are not able to compete with tall plants for sunlight. The tall plants, however, are more susceptible to wind damage. Which type of selection will this population of plants most likely experience?

Which graph represents selection that may lead to reduced variation in a population?

Which type of selection occurs when a population experiences a shift in diversity toward the larger organisms?

In a bird population, 50 % of the individuals had white feathers, and 50% had colored feathers. Over time, it was observed that 98% of the population had colorful feathers. The rest had white feathers. How did the type of selection in this example affect the population’s biodiversity?

Which organisms are most likely to survive in a population in which disruptive selection is occurring?

Stick insects, also called walking sticks, are typically found in tropical and subtropical forests and grasslands. The insects are able to camouflage themselves by living among twigs in their environment.What is this an example of?

Which process drives Darwin’s theory of evolution?

Your teacher describes a population of fish that live in a coral reef. Some fish are dark orange (the same color as the coral). Some fish are nearly white. Most of the fish exhibit a color between dark orange and nearly white. Human activity has led to the bleaching of the coral reefs, making them very pale in color. Over time, the population of fish will be affected. Which graph represents the type of selection that you expect to occur?

A population of squirrels lived together in a forest. An event occurred that caused the population to diverge into two different species over a long period of time. Which of the following is most likely the event that occurred?