Unit 7.2 Evolution & Classification Test

1

The theory of biological evolution includes the concept that

individuals may acquire physical characteristics after birth and pass these acquired characteristics on to their offspring

fossils are the remains of present-day species and were all formed at the same time

species of organisms found on Earth today have adaptations not always found in earlier species

the smallest organisms are always eliminated by the larger organisms within the ecosystem

BIO 7.1a

1

Some species of millipedes will roll into a ball when threatened, while other species of millipedes can secrete poisonous chemicals from their bodies. These adaptations allow the millipedes to ____.

survive in different temperatures

avoid different types of mutations

survive in different types of environments

conserve different amounts of energy

BIO 7.1a

1

The extremes of dry and wet weather of the Galapagos Islands cause the food supply to constantly change. During dry years, the food is mainly large, hard seeds, and finches with large beaks are found in greater numbers.
Which statement best explains this observation?

Small finches become smaller in size during dry seasons.

Dry environments cause mutations in finches.

Finches grow larger in size when they have more water.

Large beak size is an adaptation in dry conditions.

BIO 7.1a

1

Which statement describes an effect of natural selection on a species?

It favors the survival of certain members of the species and results in a change in the proportion of individuals with highly adaptive traits.

It increases competition between populations that occupy different niches, increasing the chance of extinction of the less-adapted species

It provides feedback mechanisms for members of a species and results in a change in the proportion of individuals with homeostatic controls.

It leads to reproduction with other species, increasing the number of different adaptations

BIO 7.1a

1

A farmer has been using a specific pesticide to control a population of insects that damage his crops. Initially, the pesticide is very effective, and the insect population decreases significantly. However, after several years of continuous use, the farmer notices that the pesticide is no longer as effective, and the insect population begins to increase again. Upon investigation, it is found that a significant portion of the insect population has developed resistance to the pesticide.
Which principle best explains how the insect population developed resistance to the pesticide?

All of the above

Adaptation

Overproduction of offspring

Survival and reproduction

BIO 7.1a

1

Which situation would most likely result in the highest rate of natural selection? select two

reproduction of organisms in an unchanging environment with little competition and few predators

reproduction of organisms exhibiting genetic differences due to mutations and genetic recombinations in a changing environment

reproduction of a species having a very low mutation rate in a unchanging environment

reproduction of organisms by sexual method in a changing environment

BIO 7.2a

1

Using the diagram below, what does it show about the wings of birds and butterflies?

They are homologous structures, indicating a common ancestry.

They are analogous structures, indicating different evolutionary origins.

They are vestigial structures, indicating they are no longer used.

They are identical in structure and function.

BIO 7.2a

1

Five species of frogs that live in separate habitats within 5 non-overlapping ranges along the Mississippi River share a common ancestor. Which process is most likely responsible for the formation of these five distinct species?

Reproductive isolation

Behavioral Isolation

Geographical isolation

Physiological isolation

BIO 7.2a

1

For each of the following statements, determine whether it describes convergent evolution or divergent evolution:

Most likely occur in different environments
The different beak shapes of Darwin's finches is an example.
Involves related species developing different traits.
Most likely occur in similar environments
Involves unrelated species developing similar traits

convergent evolution
divergent evolution

BIO 7.2a

1

Which of the following scenarios is an example of punctuated equilibrium?

A species of insect evolves new wing patterns at a constant rate.

A species of fish gradually changes its fin shape over millions of years.

A species of bird remains unchanged for millions of years, then rapidly evolves new beak shapes in a few thousand years.

A species of tree slowly increases its leaf size over thousands of years.

BIO 7.2a

Unit 7.2 Evolution & Classification Test

The theory of biological evolution includes the concept that

Some species of millipedes will roll into a ball when threatened, while other species of millipedes can secrete poisonous chemicals from their bodies. These adaptations allow the millipedes to ____.

The extremes of dry and wet weather of the Galapagos Islands cause the food supply to constantly change. During dry years, the food is mainly large, hard seeds, and finches with large beaks are found in greater numbers.Which statement best explains this observation?

Which statement describes an effect of natural selection on a species?

Which situation would most likely result in the highest rate of natural selection? select two

Using the diagram below, what does it show about the wings of birds and butterflies?

Five species of frogs that live in separate habitats within 5 non-overlapping ranges along the Mississippi River share a common ancestor. Which process is most likely responsible for the formation of these five distinct species?

For each of the following statements, determine whether it describes convergent evolution or divergent evolution:

Which of the following scenarios is an example of punctuated equilibrium?

The theory of biological evolution includes the concept that

Some species of millipedes will roll into a ball when threatened, while other species of millipedes can secrete poisonous chemicals from their bodies. These adaptations allow the millipedes to ____.

The extremes of dry and wet weather of the Galapagos Islands cause the food supply to constantly change. During dry years, the food is mainly large, hard seeds, and finches with large beaks are found in greater numbers.Which statement best explains this observation?

Which statement describes an effect of natural selection on a species?

Which situation would most likely result in the highest rate of natural selection? select two

Using the diagram below, what does it show about the wings of birds and butterflies?

Five species of frogs that live in separate habitats within 5 non-overlapping ranges along the Mississippi River share a common ancestor. Which process is most likely responsible for the formation of these five distinct species?

For each of the following statements, determine whether it describes convergent evolution or divergent evolution:

Which of the following scenarios is an example of punctuated equilibrium?

The extremes of dry and wet weather of the Galapagos Islands cause the food supply to constantly change. During dry years, the food is mainly large, hard seeds, and finches with large beaks are found in greater numbers.
Which statement best explains this observation?

The extremes of dry and wet weather of the Galapagos Islands cause the food supply to constantly change. During dry years, the food is mainly large, hard seeds, and finches with large beaks are found in greater numbers.
Which statement best explains this observation?