Dichotomous Keys and Cladograms

Cladograms and Levels of Organization

Multiple Choice

Which two orgainsms have hair? 

• Sharks & Ray Finned Fish
• Primates & Rodents
• Birds & Crocodiles
• Rabbits & Birds

Multiple Choice

According to this cladogram, sharks are MOST closely related to which organism? 

• Amphibians
• Ray finned fish
• Crocodiles
• Birds

Multiple Choice

8B The cladogram shows the evolution of land plants as indicated by fossil records.

Which discovery would challenge the validity of this cladogram?

• A large aquatic vascular plant about 200 million years old

• A species of algae that has existed for less than one million years

• A moss species that has existed for less than 380 million years

• A fossil of a fern more than 425 million years old

Multiple Choice

8B A cladogram is shown.

All the animals to the right of the hagfish would have the common characteristic of —

• fur

• claws or nails

• lungs

• jaws

Multiple Choice

7A This cladogram shows the evolutionary relationships among some mammals based on homologous structures.

Which statement is supported by this cladogram?

• Hippopotamuses are more closely related to cows than to javelinas.

• Toothed whales are more closely related to mouse deer than to hippopotamuses.

• Javelinas and pigs are more closely related than baleen whales and toothed whales.

• Cows and mouse deer are more closely related than javelinas and pigs

Multiple Choice

What is the name of bird W?

• Certhidea
• Geospiza
• Camarhynchus
• Platyspiza

Multiple Choice

An illustration and a dichotomous key are given. What is the correct classification for this organism?

• Class Insecta
• Order Amblygygi
• Order Araneae
• Order Scorpiones

Multiple Choice

The smallest unit

of a compound consisting of two or more atoms

bonded together.

• Organelle

• Cell

• Molecule

• Atom

Multiple Choice

The basic building block of living things, made up of organelles.

• Tissue

• Organelle

• Cell

• Atom

Multiple Choice

10C Recent studies in bone research indicate that using ultrasound on a broken bone can decrease the healing time by 25%. Which of these are the most basic levels of organization involved when a bone heals?

• Cells and tissue

• Cells and organ system

• Organ system and organism

• Tissue and organ system

Multiple Choice

Group of tissues with similar functions.

• Organelles

• Cells

• Tissues

• Organs

Multiple Choice

10C The human body is composed of organ systems. Which list represents a system organized from least to most complex?

• Heart, cardiac muscle, muscle tissue, muscle cell

• Lung tissue, trachea, nostrils, circulatory system

• Muscle cell, muscle tissue, biceps muscle, muscular system

• Integumentary system, skin cell, hair, sweat glands

Multiple Choice

Any single living individual, and can refer to a single human, animal, plant,

Protista, bacteria, or fungi.

• Community

• Cell

• Population

• Organism

Multiple Choice

10C The diagrams show some of the levels of biological organization. In what order are the levels in the diagrams?

• Population, community, ecosystem

• Organism, community, population

• Organism, population, community

• Ecosystem, population, community

Multiple Choice

10C Which answer choice best describes a community

• Praying mantises caring for their young

• Three-spined sticklebacks living in estuaries

• Different species of lizards occupying the same niche in a desert

• Roosting mother bats recognizing their offspring

Multiple Choice

10C A science class is planning a field trip to a local farm that has a large pond. Which of the following lists the order of biological organization from smallest to largest that the students can expect to find at the pond?

• Organism, community, population, ecosystem

• Organism, population, community, ecosystem

• Population, organism, community, ecosystem

• Population, organism, ecosystem, community

Multiple Choice

A biological community that includes various species and their physical environment (Biotic and Abiotic Factors).

• Organism

• Community

• Biosphere

• Ecosystem