Unit 4B Pt1 Biodiversity

Unit 4 Pt1 - Biodiversity (4.1-.4)

Taxonomy, Dichotomous Keys and The 3 Domains of Life

HS-LS2-1: Use mathematical and/or computational representations to support explanations of factors that affect carrying capacity of ecosystems at different scales.

HS-LS2-2: Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.

HS-LS2-6: Evaluate claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.

HS-LS2-7: Design, evaluate, and refine a solution for reducing the impacts of human activities on the environment and biodiversity.

Multiple Choice

What are the three domains of life?

• Plants, animals, fungi

• Bacteria, Archaea, Eukarya

• Mammals, reptiles, birds

• Prokaryotes, Eukaryotes, Protists

Multiple Choice

Which domain do bacteria belong to?

• Archaea

• Eukarya

• Protista

• Bacteria

Multiple Choice

Which kingdom includes autotrophs?

• Plantae

• Animalia

• Fungi

• Protista

Multiple Choice

What is the main purpose of taxonomy?

• To determine genetic relationships

• To organize organisms by size

• To study DNA and cell structure

• To name and classify species

Multiple Choice

If two organisms belong to the same order, then they must also belong to the same...

• Species

• Class

• Family

• Genus

Multiple Choice

Within families, organisms are placed into groups called...

• Genus

• Kingdom

• Class

• Phylum

Multiple Choice

Which scientist came up with the kingdom classification system?

• Robert Hooke

• Carol Linnaeus

• Anton Van Leeuwenhoek

• Carl Woese

Multiple Choice

Which of the following is the correct way to show the scientific name for tiger?

• Panthera Tigris

• Panthera tigris

• panthera Tigris

• panthera tigris

Multiple Choice

An organism's scientific name is based on how it is classified. Which of the following levels of classification determine the name?

• kingdom & phylum

• class & species

• domain & order

• genus & species

Multiple Choice

Scientists around the world use a standardized taxonomic system. Why would scientists want to use a taxonomic system that is standardized?

• In order to avoid confusion with the identification of organisms

• Because Linnaeus established the system

• So that Latin names can be applied for a practical purpose

• In order to place organisms in different groups

Multiple Choice

What is the purpose of a dichotomous key?

• to find a common ancestor
• to show the evolution of organisms
• to show relationships between organisms
• to identify organisms

Multiple Choice

When using a dichotomous key to identify organisms, what do we look at?

• physical features
• weather patterns
• environment
• diet

Multiple Choice

Butterflies usually are identified by the colors and patterns on their wings. Butterflies have four wings: The two wings near the butterfly’s head are “forewings” while the wings near the butterfly’s tail are “hindwings.” You can use the following dichotomous key to identify four common butterfly species in North America.

Based on the key, what species of butterfly is shown below?

• Papilio glaucus

• Papilio polyxenes

• Danaus plexippus

• Colias philodice

Multiple Choice

Simple leaves have a single leaf on a petiole, or stem, while compound leaves have more than one leaflet on a petiole. This unknown leaf can be identified using the dichotomous key. Which tree does the unknown leaf come from?

• Ungnadia speciosa

• Sophora secondiflora

• Salix nigra

• Quercus laceyi

​Let's see who our winners are!