Insect Classification Quiz

Based on the dichotomous key, in which order does the insect belong?

• Diptera

• Isoptera

• Ephemeroptera

• Zoraptera

A group of 7th grade science students have been asked to create a dichotomous key that can be used to identify the plants shown in the diagram below. Which two of the following specifications should NOT be used when making this dichotomous key? Select two answer choices.

• Leaves symmetrical on stem

• Leaves found in deciduous forest

• Leaves brown and dry

• Circular shaped leaves

The diagram shows a wildflower and a dichotomous key that can be used to identify the wildflower. Based on the key, what is the name of this wildflower?

• Starflower

• Chickweed

• Bowmans Root

• Common Strawberry

A population of birds has many small variations among the individuals in the population. Variation in beak size among these birds would affect their survival most if the —

• type of food available in the area changes.

• amount of water available in the area decreases.

• size of nesting areas decreases.

• weather changes.

Some animals migrate, or seasonally move to a different place. In some bird populations, such as Canada geese, some birds migrate and some stay in the same area year-round. Migration can enhance the survival of individuals because it —

• exerts a lot of energy.

• causes adaptations to occur more frequently.

• helps them avoid predators.

• makes finding necessary resources more likely.

Organisms within the same species have variations that can be external, physiological, or behavioral. What are examples of variations of external features of individuals in a population? Pick THREE correct choices.

• An otter with thicker fur than other members of its population

• A bear that hibernates earlier than other members of its population

• A plant with a longer root system than other members of its population

• A rose bush has slightly longer thorns than other members of its population

• A tree that sprouts leaves earlier in the spring than other members of its population

These species are very similar, but the Hood mockingbird has a longer beak than the other three species. Which of the following best explains this difference?

• The Hood mockingbird needs a longer beak for defense against predators.

• The Hood mockingbird originated from a different type of bird than the other species.

• The Hood mockingbird's longer beak is an adaptation to the food available in the bird's habitat.

• The Hood mockingbird's beak stretched to reach its food, and the longer beak was passed down to its offspring.

Which explanation most likely accounts for the increase in the number of male butterflies in the five years after the initial parasite problem?

• Male butterflies in the population that survived were able to prey on the parasites living in the females’ egg cells.

• Female butterflies in the population that survived had a genetic adaptation that allowed them to transform into male butterflies.

• Male butterflies in the population that survived had a gene that made them resistant to the parasite, and they passed the gene on to their offspring.

• Female butterflies in the population that survived were able to protect the male eggs from the parasite and provide extra care for the male offspring.

Identify one trait of a plant that could be changed by selective breeding.

Explain how the change you describe would make the plant more useful.Some dairy farmers want to increase the amount of milk produced by their cows. How can the farmers use selective breeding to increase milk production?

• By increasing the age of cows that are bred.

• By choosing cows that are high milk producers.

• By limiting the number of offspring per cow.

• By choosing ows that can produce milk after eating the most food.