Biology Taxonomy and Plankton Overview
25 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the scientific name of the Blue Shark?

  • Carcharhinus *glauca*
  • Prionance glauca (correct)
  • Prionance *glauca*
  • Carcharhinus glaucus
  • Which of the following is NOT a characteristic of zooplankton?

  • They are generally microscopic.
  • They are typically found in water currents.
  • They produce their own food through photosynthesis. (correct)
  • They are consumers.
  • Which of the following is an example of a meroplankton?

  • Diatoms
  • Jellyfish
  • Dinoflagellates
  • Copepods (correct)
  • What is the main role of the Crown of Thorns Starfish in coral reefs?

    <p>They feed on fast-growing coral species, promoting biodiversity. (D)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of echinoderms?

    <p>They are found in both freshwater and saltwater environments. (B)</p> Signup and view all the answers

    What is the main function of the tube feet in echinoderms?

    <p>Locomotion, feeding and respiration (D)</p> Signup and view all the answers

    How do sea otters contribute to the health of kelp forests?

    <p>They prey on urchins, keeping their population in check. (D)</p> Signup and view all the answers

    Which of the following is an ecological impact of echinoderms?

    <p>They can contribute to increased biodiversity in coral reefs. (D)</p> Signup and view all the answers

    Which of the following is NOT a way that cartilaginous fish are economically important?

    <p>Aquaculture (B)</p> Signup and view all the answers

    What is the primary function of the swim bladder in bony fish?

    <p>Maintaining buoyancy (A)</p> Signup and view all the answers

    Which of the following is NOT a feature shared by all chordates, including bony and cartilaginous fish?

    <p>Gills (B)</p> Signup and view all the answers

    What is the main benefit of ram ventilation in cartilaginous fish?

    <p>Provides a constant supply of oxygen (B)</p> Signup and view all the answers

    How does the overfishing of haddock impact the population of cartilaginous fish?

    <p>Reduces competition for food, leading to an increase in cartilaginous fish population (C)</p> Signup and view all the answers

    Which of the following is NOT an economic use of kelp?

    <p>Construction material for housing (D)</p> Signup and view all the answers

    What are the main features of the exoskeleton in adult crustaceans?

    <p>A carapace that protects the internal organs and is located on the dorsal side of the exoskeleton, in the cephalothorax (A)</p> Signup and view all the answers

    What is the function of the holdfast in kelp?

    <p>Anchors the kelp to the seafloor (D)</p> Signup and view all the answers

    Which of the following is NOT a feature of the adult bony fish?

    <p>Gills that are covered by a carapace (B)</p> Signup and view all the answers

    Which of these is NOT a type of fin found in cartilaginous fish?

    <p>Swim bladder (A)</p> Signup and view all the answers

    What is the ecological importance of krill?

    <p>They are a food source for many marine animals and their feces provide nutrients for phytoplankton in deep water (B)</p> Signup and view all the answers

    Which of the following is NOT a benefit of scavenging crustaceans in their ecosystem?

    <p>They consume phytoplankton and keep seagrasses clean of algae (B)</p> Signup and view all the answers

    How does the depletion of sea ice impact krill populations?

    <p>Sea ice provides a habitat for algae. With less sea ice, there is less food for krill, leading to a decrease in their population. (D)</p> Signup and view all the answers

    Which type of fin is associated with fast swimming speeds?

    <p>Lunate and fork (C)</p> Signup and view all the answers

    Which of the following is a direct impact of the decline of sea cucumbers on the Galapagos ecosystem?

    <p>Reduced income for local fishermen (C)</p> Signup and view all the answers

    Which of the following is NOT an ecological importance of bony fish?

    <p>They have a symbiotic relationship with sea cucumbers, increasing their population (C)</p> Signup and view all the answers

    Signup and view all the answers

    Flashcards

    Taxonomic Hierarchy

    System for classifying organisms into groups from broadest to most specific.

    Binomial Nomenclature

    Two-part naming system for species: Genus and species name.

    Phytoplankton

    Microscopic producers in aquatic environments that use photosynthesis.

    Diatoms

    Unicellular phytoplankton with silica cell walls, reproduce rapidly.

    Signup and view all the flashcards

    Zooplankton

    Microscopic consumers in aquatic environments that feed on phytoplankton.

    Signup and view all the flashcards

    Pentaradial Symmetry

    Body plan with five equal parts around a central axis found in echinoderms.

    Signup and view all the flashcards

    Crown of Thorns Starfish

    Echinoderm that feeds on coral, can impact biodiversity during outbreaks.

    Signup and view all the flashcards

    Ecological Importance of Echinoderms

    Echinoderms like sea cucumbers oxygenate sediments, aiding marine ecosystems.

    Signup and view all the flashcards

    Sea Cucumbers Importance

    Sea cucumbers are vital for pharmaceuticals and local fishing economies.

    Signup and view all the flashcards

    Main Features of Crustaceans

    Crustaceans have a carapace, jointed legs, and two antennae.

    Signup and view all the flashcards

    Carapace

    A hard protective shell covering the dorsal side of crustaceans.

    Signup and view all the flashcards

    Ecological Role of Crustaceans

    Crustaceans recycle nutrients and serve as food in marine ecosystems.

    Signup and view all the flashcards

    Krill

    Small crustaceans crucial for marine food chains, supporting many species.

    Signup and view all the flashcards

    Bony Skeleton Features

    Bony fish have operculum, gills, swim bladder, and various fins.

    Signup and view all the flashcards

    Lateral Line

    A sensory organ in fish for detecting vibrations and electric stimuli.

    Signup and view all the flashcards

    Ecological Importance of Bony Fish

    Bony fish store nutrients and influence nutrient cycles in ecosystems.

    Signup and view all the flashcards

    Economic uses of fish

    Fish provide meat, caviar, oil, and skins for various products and processes.

    Signup and view all the flashcards

    Cartilaginous fish features

    These fish have a cartilaginous skeleton, gill slits, a lateral line, denticles, and oily liver for buoyancy.

    Signup and view all the flashcards

    Ram ventilation

    A method where cartilaginous fish must swim constantly to ensure water flows over their gills for breathing.

    Signup and view all the flashcards

    Ecological role of top predators

    Top predators, including some cartilaginous fish, maintain balance in ecosystems by controlling prey populations.

    Signup and view all the flashcards

    Kelp structure

    Kelp has a blade for photosynthesis, a gas bladder for buoyancy, a stipe for support, and a holdfast to anchor.

    Signup and view all the flashcards

    Importance of kelp

    Kelp is crucial for ecosystems, providing habitats, oxygen, and carbon dioxide absorption.

    Signup and view all the flashcards

    Peruvian Anchoveta

    The Peruvian Anchoveta is a filter feeder and the largest fishery globally, significantly impacting the economy.

    Signup and view all the flashcards

    Commercial fishing

    Fishing conducted for profit, crucial for the economy and involves various fish species.

    Signup and view all the flashcards

    Study Notes

    Taxonomic Hierarchy

    • The taxonomic hierarchy is a system of classifying organisms into increasingly specific groups.
    • It begins with the broadest category (domain) and progresses to the most specific (species).
    • Examples of categories include domain, kingdom, phylum, class, order, family, genus, and species.

    Binomial System

    • The binomial system names species using two parts:
      • The first part is capitalized.
      • The second part is not.
    • This system ensures that every living thing has a unique name.

    Dichotomous Keys

    • Dichotomous keys are used to identify species.
    • They use a series of paired descriptions that lead the user to a specific organism.
    • One pair of options is presented at each step, leading to further choices.

    Plankton

    • Plankton are microscopic organisms.
    • They have limited motility and drift in water currents.
    • Main groups are phytoplankton and zooplankton.
    • Phytoplankton absorb nutrients from their environment and obtain their nutrition via photosynthesis. Examples include diatoms and dinoflagellates.
    • Zooplankton are consumers, such as copepods, which are herbivores feeding throughout their life cycle. Other are meroplankton, abundant during larval stage only (e.g. jellyfish).

    Echinoderms

    • Echinoderms include starfish, sea urchins, and sea cucumbers.
    • They possess an important role in the marine ecosystem acting as keystone species (e.g., sea otters).
    • Sea cucumbers burrow in sediments helping oxygenate waste.

    Crustaceans

    • Crustaceans include crabs, krill, shrimp, and lobsters.
    • They possess a carapace (exoskeleton).
    • They have jointed legs and two antennae.
    • Many crustaceans play important roles in marine ecosystems, including serving as food sources or scavengers.

    Bony Fish

    • Bony fish have a bony skeleton, operculum (gill cover), gills, and lateral line.
    • Gills have a large surface area for gas exchange.
    • Lateral lines act as sensors to detect vibrations in the water.
    • Swim bladders help with buoyancy.

    Cartilaginous Fish

    • Cartilaginous fish have a cartilaginous skeleton, gill slits, and no operculum.
    • Some examples are sharks and rays.
    • They are important consumers and top predators in ocean ecosystems.

    Macroalgae

    • Macroalgae, such as kelp, are large seaweed-like organisms that grow upright and attach to rocks in marine environments.
    • They play an essential role in marine ecosystems as a source of food and habitat.
    • They absorb and store large amounts of carbon dioxide from the atmosphere.

    Seagrasses

    • Seagrasses are marine plants that grow in shallow coastal waters.
    • They have roots, rhizomes, and leaves.
    • Seagrasses support various marine organisms, including fish, invertebrates, and other plants.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    Explore the fundamental concepts of biological classification in this quiz, covering taxonomic hierarchy, the binomial naming system, and the use of dichotomous keys. Additionally, gain insights into the role of plankton in aquatic ecosystems. Test your knowledge on these essential topics in biology!

    More Like This

    Classification of Living Things
    30 questions
    Taxonomic Hierarchy Quiz: Lecture 2
    40 questions
    Biological Classification and Nomenclature
    10 questions
    Use Quizgecko on...
    Browser
    Browser