BIOL 485 Course Quiz

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Questions and Answers

The Burgess Shale Formation is estimated to be approximately 510 million years old.

True (A)

The Cambrian Explosion refers to a period of rapid diversification of animal life, occurring approximately ______ million years ago.

510

What significant ecological event occurred around 550 million years ago that may have triggered the Cambrian Explosion?

The end of the snowball Earth event.

Which of the following is NOT a phylum mentioned in the text as being among the most abundant on Earth?

Echinodermata (C) Signup and view all the answers

Match the following terms with their correct definitions:

Morphological Diversity = The variety of forms and structures found in organisms. Physiology = The study of the functions of organisms and their parts. Ecology = The study of the interactions between organisms and their environment. Evolution = The process of change in the genetic makeup of a population over time. Signup and view all the answers

Carolus Linnaeus developed a hierarchical system of classification based on shared characteristics called ______.

synapomorphies Signup and view all the answers

Match the following Linnaean levels of classification with their correct order from broadest to most specific.

Kingdom = 1 Phylum = 2 Class = 3 Order = 4 Family = 5 Genus = 6 Species = 7 Signup and view all the answers

Which of the following is NOT a Linnaean level of classification?

Domain (B) Signup and view all the answers

Linnaean classification is still considered the most accurate and up-to-date system for classifying organisms.

False (B) Signup and view all the answers

Linnaean classification is now outdated, and we now use ______ trees to classify organisms.

phylogenetic Signup and view all the answers

What is a synapomorphy?

A shared derived characteristic that is used to group organisms together. Signup and view all the answers

Which of the following domains of life are considered to be prokaryotes?

Bacteria (A), Archaea (B) Signup and view all the answers

What are the eight basic things that all organisms need to do in order to survive?

All organisms need to be able to acquire and process energy, maintain homeostasis, grow and develop, reproduce, respond to stimuli, adapt to their environment, and be composed of cells (with the exception of viruses). Signup and view all the answers

Which of the following is NOT a characteristic of life?

Maintain a constant temperature (E) Signup and view all the answers

Cellular respiration is the process by which organisms break down food to release energy.

True (A) Signup and view all the answers

What is the primary function of epithelial tissue?

To regulate and separate two different environments Signup and view all the answers

Organisms with a ______ grade of organization are composed of cells that are grouped into tissues.

tissue Signup and view all the answers

Match the following terms with their corresponding definitions:

Homeostasis = A state of balance within a living organism Metazoa = Multicellular animals Tissue = A group of similar cells performing a specific function Organ = A structure composed of different tissues working together Size = A fundamental factor that influences an organism's interaction with its environment Signup and view all the answers

Which of the following is NOT an example of homeostasis?

Growing taller over time (C) Signup and view all the answers

Larger organisms always have simpler internal structures than smaller organisms.

False (B) Signup and view all the answers

How does size affect an organism's interaction with its environment?

Larger organisms generally have a more complex body structure to support their size and metabolic requirements. They also interact with the environment in different ways due to their increased mass and surface area. Signup and view all the answers

Diffusion is a rapid process, particularly in air, and works efficiently for large organisms with long diffusion radii.

False (B) Signup and view all the answers

What is the primary challenge faced by larger organisms in obtaining and distributing materials from the environment like oxygen?

The increasing distance that materials must travel to reach all cells and tissues. Signup and view all the answers

Match the following respiratory pigments with their corresponding organisms:

Hemoglobin = Vertebrates, molluscs, arthropods, plants Hemerythrin = Some worms, brachiopods Chlorocruorin = Some annelid worms Hemocyanin = Molluscs, arthropods Signup and view all the answers

Which of the following strategies do organisms employ to increase their surface area to volume ratio?

A & B (D) Signup and view all the answers

The evolution of a ___________ system in multicellular organisms enabled the transport of oxygen to internal tissues.

circulatory Signup and view all the answers

The presence of respiratory pigments like hemoglobin and hemocyanin helps increase the efficiency of gaseous exchange by boosting the oxygen-carrying capacity of blood.

True (A) Signup and view all the answers

What is the primary difference between diffusion and a circulatory system?

Diffusion relies on concentration gradients, while a circulatory system requires a pump. (A) Signup and view all the answers

Explain how the development of a circulatory system helped overcome the challenges of supplying oxygen to internal tissues in large multicellular organisms.

A circulatory system provides a specialized transport mechanism to move oxygen-rich blood rapidly throughout the body, reaching even the farthest tissues. This effectively overcomes the constraints of diffusion, which becomes less efficient over longer distances. Signup and view all the answers

The protein __________ is a key component of animal tissues and plays a significant role in their development.

collagen Signup and view all the answers

Which of the following is NOT a characteristic of a blastula stage in animal development?

Formation of true tissues (D) Signup and view all the answers

Study Notes

Course Information

Course name: BIOL 485, Biology of the Invertebrates
Course semester: Spring 2025
Instructor: Dr. Amy Moran
Lab location: Edmondson 103
Lab start dates: Thursday/Friday (1/16 and 1/17)
No lab on Tuesdays/Wednesdays

Course Logistics

Lectures: Based on notes and materials on Laulima. No required textbook.
Exams: 4 exams, 20% each. Not cumulative except for concepts that carry over.
In-class activities: 20%, 5 out of 6 activities with 4% each.
Study time: Expected study time up to 6 hours per week.
- Lab supplies: Required for each lab: a notebook/drawing tablet, a dissecting kit (assigned by lab), gloves and field footwear assigned by the first field trip (boots preferred).
Questions:
- In-class: raise hand
- Out of class: Email or office hours (for grades).
- Sharing materials: Only with permission.
Course Participation: Complete the "Weekly Engagement" on Laulima by 11:55 PM on Tuesday, January 21st to avoid being dropped from the class. Important to maintain participation.

Instructor Information

Dr. Amy Moran is an invertebrate ecological physiologist, larval biologist and ecologist, Antarctic marine biologist.
Website: www.moranlab.org
At UH since 2013.
Other University of Hawai'i jobs: Associate Director for Curriculum, School of Life Sciences and Chair, Scientific Diving Control Board.

Additional Topics

Course Questions: Focus on invertebrates, their diversity origins, distinctions between major groups, and how life's major challenges are addressed.
Course Themes:
- Morphological diversity
- Physiology
- Ecology
- Evolution
Diversity of Animal Phyla: Invertebrates make up about 99% of animal phyla (32-35 phyla). The estimated true number of species is over 30 million.
Timeline of Cambrian Explosion: About 540 million years ago in the Canadian Rocky Mountains, paleontologist Charles Walcott found a rich bed of ancient invertebrates.
Key Invertebrate Groups: Included in the study examples: sponges, cnidarians, ctenophores, and many more.
Three Domains of Life: Bacteria, Archaea, Eukarya.
Protozoa: Unicellular eukaryotes. Extremely diverse genetically and morphologically.
Types of Cells: Epithelial, connective
Grades of Organization: Single-celled, tissue grade, organs, and systems
Size and Metabolism Considerations: Larger organisms require more highly complex systems to meet their metabolic needs.

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Description

Test your knowledge on the key concepts covered in BIOL 485. This quiz will assess your understanding of the lecture topics, important events in biological history, and course requirements. Determine what you know about the biology related to the Cambrian Explosion and the frameworks of the course.

BIOL 485 Course Quiz

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Podcast

Questions and Answers

The Burgess Shale Formation is estimated to be approximately 510 million years old.

The Cambrian Explosion refers to a period of rapid diversification of animal life, occurring approximately ______ million years ago.

What significant ecological event occurred around 550 million years ago that may have triggered the Cambrian Explosion?

Which of the following is NOT a phylum mentioned in the text as being among the most abundant on Earth?

Match the following terms with their correct definitions:

Carolus Linnaeus developed a hierarchical system of classification based on shared characteristics called ______.

Match the following Linnaean levels of classification with their correct order from broadest to most specific.

Which of the following is NOT a Linnaean level of classification?

Linnaean classification is still considered the most accurate and up-to-date system for classifying organisms.

Linnaean classification is now outdated, and we now use ______ trees to classify organisms.

What is a synapomorphy?

Which of the following domains of life are considered to be prokaryotes?

What are the eight basic things that all organisms need to do in order to survive?

Which of the following is NOT a characteristic of life?

Cellular respiration is the process by which organisms break down food to release energy.

What is the primary function of epithelial tissue?

Organisms with a ______ grade of organization are composed of cells that are grouped into tissues.

Match the following terms with their corresponding definitions:

Which of the following is NOT an example of homeostasis?

Larger organisms always have simpler internal structures than smaller organisms.

How does size affect an organism's interaction with its environment?

Diffusion is a rapid process, particularly in air, and works efficiently for large organisms with long diffusion radii.

What is the primary challenge faced by larger organisms in obtaining and distributing materials from the environment like oxygen?

Match the following respiratory pigments with their corresponding organisms:

Which of the following strategies do organisms employ to increase their surface area to volume ratio?

The evolution of a ___________ system in multicellular organisms enabled the transport of oxygen to internal tissues.

The presence of respiratory pigments like hemoglobin and hemocyanin helps increase the efficiency of gaseous exchange by boosting the oxygen-carrying capacity of blood.

What is the primary difference between diffusion and a circulatory system?

Explain how the development of a circulatory system helped overcome the challenges of supplying oxygen to internal tissues in large multicellular organisms.

The protein __________ is a key component of animal tissues and plays a significant role in their development.

Which of the following is NOT a characteristic of a blastula stage in animal development?

Study Notes

Course Information

Course Logistics

Instructor Information

Additional Topics

Studying That Suits You

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