Unit Test — Unit test Answers

Consider the following food chain:Garden plants are eaten by snails, which are eaten by birds, which are eaten by the household cat.

Variation of ecological habitats within a species is characteristic of which type of diversity?

Organisms that have a physical trait that makes it easier for them to access food supplies are unlikely to pass on that trait to their offspring.

The Great Burdock plant’s seeds have spines on them that attach to the fur of animals that brush against it. The seed then travels with the animal until it eventually falls off, which spreads the plant’s seeds farther than the plant could have done. What type of symbiotic relationship is this?

What discovery led Darwin to develop his theories on adaptation?

How can an increase in biodiversity lead to an increase in ecosystem stability?

Which of the following is not a part of Darwin’s theory of evolution?

Deer run in zigzag patterns when being chased by predators. What type of adaptation is this?

What are the five categories of adaptations?

Which of the following could result in secondary succession?

What is the purpose of hibernation?

A conservation biologist has determined the status of the ecosystems in a protected area, as shown in the table below. Based on the table, which part of the pie chart represents secondary succession?Status of ecosystemsPercentage of protected areaPrimary succession10Secondary succession30Barren land5Established community55

Sponges produce structures called gemmules, which are hard outer coatings protecting a reproductive bud during times of drought. What type of adaptation is this?

The loss of an organism at the bottom of a food chain negatively impacts all organisms in the chain.

Which of the following is an example of symbiosis?