Unit 11: Classification of Living Things Flashcards

The science of naming and classifying organisms based on their natural relationships

The evolutionary history of organisms

2 part naming system of organisms designed by Linnaus.

Uses Genus and species (specific epithet)

Puma concolor

Do Kids Prefer Cheese or Fried Green Spinach

Broadest, most inclusive group in classification. All life fits in these 3 domains.

Bacteria and Archaens are prokaryotic and single celled cells

Eukaryota include all organisms the have eukaryotic cells, can be single celled or multicellular organisms

Shows how groups of organisms are related through common ancestor. Organisms more closely related are closer on tree.

Tool used to help scientists classify and identify organisms using paired statements.

A nonliving particle that reproduces by invading and using the mechanisms of a host cell. Made of protein coat surrounding DNA or RNA.

Life cycle of virus where virus attaches to cell, penetrates cell by injecting its DNA (or RNA) into the cell. The cell replicates the viral genes and produces viral proteins to assemble new viruses. The cell bursts open and releases the new viruses.

Life cycle of virus where virus attaches to cell, penetrates cell by injecting its DNA (or RNA) into the cell. DNA becomes part of the cell's genome and when the host cell replicates, it also replicates the viral DNA. After virus genes are activated, it will then enter into lytic cycle to form viruses and release them.

Organisms that make their own food either through photosynthesis or chemosynthesis.

Organisms that need to eat other organisms for food.

Prokaryotic single celled organisms.

DNA is one circular chromosome, can be autotrophic or heterotrophic, have cell walls made of peptidoglycan, and reproduce by binary fission.

Prokaryotic single celled organisms that mostly live in harsh environments.

More closely related to eukaryotes chemically than bacteria. Have cell walls made of lipids and contain similar proteins in ribosomes as eukaryotes.

Wide range of organisms in domain Eukarya. Can be multicellular or unicellular and can be autotrophic or heterotrophic.

Organisms in the domain Eukarya that have

• cell walls made of chitin
• heterotrophic
• cells arranged in filaments

Diverse organisms in domain eukarya that

• multicellular
• heterotropic
• digest food inside of body
• can reproduce sexually
• do not have cell walls

Body plan which has symmetry around a single line.

Body plan with symmetry around a point.

Body plan without symmetry

Organisms in the domain eukarya that:

• multicellular
• photosynthetic
• have cuticle and most have stomata

Protective structure around plant embryo. Presence or absence of a seed is used to classify plants.

Plants that lack specialized tissues that transport water and nutrients and do not produce seeds.

Lack true roots, stem and leaves.

Have vascular tissue that carry water and nutrients throughout the plant, but lack seeds.

Have stems, roots and leaves.

Specialized tissue in plants that carry water and nutrients throughout plants.

Water travels through Xylem

Nutrients travel through Phloem

"Naked Seed'

Vascular plants that produce seeds but does not produce flowers or fruit. Seeds are contained in cones.

Vascular plants that produce seeds, flowers, and fruits.