Biology Classification and Population Dynamics

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Questions and Answers

Which of the following organisms are classified into the kingdom Animalia?

  • Bacteria
  • Fungi
  • Animals (correct)
  • Plants

Fungi are prokaryotic organisms.

False (B)

Match the following kingdoms with their cell type:

Monera = Prokaryotic Protista = Eukaryotic Plantae = Eukaryotic Fungi = Eukaryotic Animalia = Eukaryotic

Which of the following is NOT a characteristic of animal cells?

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

What is the mode of nutrition for most animals?

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

What is the mode of nutrition for Fungi?

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

All organisms in the kingdom Animalia are multicellular.

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

Prokaryotic cells have a true nucleus.

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

The cell wall is present in all eukaryotic cells.

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

What is the term for a group of organisms of the same species living in the same area?

<p>Population</p> Signup and view all the answers

What is the term for multiple populations interacting together in a specific area?

<p>Community</p> Signup and view all the answers

What is the term for a group of interacting communities and their physical environment?

<p>Ecosystem</p> Signup and view all the answers

Flashcards

Population

A group of organisms of the same species that live in a specific area.

Immigration

The process of organisms moving into a population.

Emigration

The process of organisms leaving a population.

Births

The process of organisms being born into a population.

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Deaths

The process of organisms dying in a population.

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Capture-recapture method

The process of estimating the size of a population by capturing, marking, and recapturing individuals.

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Prokaryotic cell

A type of cell that lacks a nucleus and other membrane-bound organelles.

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Eukaryotic cell

A type of cell that has a nucleus and other membrane-bound organelles.

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Cell wall

A rigid structure outside the cell membrane that provides support and protection.

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Phototrophic

Organisms that obtain energy from sunlight for food production.

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Heterotrophic

Organisms that obtain energy from consuming other organisms.

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Chemoautotrophic

Organisms that obtain energy from chemical reactions involving inorganic substances.

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Mode of nutrition

The process by which organisms obtain nutrients.

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Monera

A kingdom of life that includes prokaryotic organisms, like bacteria.

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Protista

A kingdom of life that includes diverse eukaryotic organisms, like algae and protozoa.

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Fungi

A kingdom of life that includes multicellular, eukaryotic organisms that obtain nutrients by absorbing organic molecules.

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Plantae

A kingdom of life that includes multicellular, eukaryotic organisms that obtain nutrients through photosynthesis.

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Animalia

A kingdom of life that includes multicellular, eukaryotic organisms that obtain nutrients by ingesting other organisms.

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Digestion

The process by which organisms break down food for energy.

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Absorption

The process by which organisms absorb nutrients from the environment.

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Study Notes

Classification of Organisms

  • Organisms are classified into kingdoms based on their cellular structures
  • Kingdoms include Monera, Protista, Fungi, Plantae, and Animalia
  • These kingdoms are further categorized by cell type, cell wall presence, and nutritional mode
  • Cell type can be prokaryotic (no nucleus) or eukaryotic (nucleus)
  • Cell wall presence varies among kingdoms (e.g., present in plants, absent in animals)
  • Nutritional modes include phototrophic (using sunlight), heterotrophic (consuming other organisms), or chemoautotrophic (using chemicals)

Population Biology

  • A population is a group of the same species in a specific area
  • Population size is influenced by births, immigration, deaths, and emigration
  • Population size can be estimated using the capture-recapture method (formula in image 5)
  • Different levels of biological organization exist, from atoms to ecosystems; image 4 shows this hierarchy

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