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Exam 4 Bio

Exam four Biology

QuestionAnswer
Mammal Characteristics have fur Have distinctive teeth Produce milk Highly developed brains monotrene- lay eggs Marsupials pouches Placental Mammals
A _____ is a fibrous rod that runs down the back of a chordate Notochord
What are similarities between bird, reptile & mammals All have an amnion, covering made of keratin, and they are craniates
What are the evolutionary link between birds and reptiles Four-chambered hearts, egg laying and scales
Is a four chambed heart more effecient than a two chambered hear? Why? It can generate a stronger contraction
What kind of fish is a shark? Cartilaginous fish
Why do Amphibians live in a moist habitat? to promote gas exchange across their skin and to maintain their eggs
What are the four distinguishable characteristics of a vertebrate? Notochord, dorsal hollow nerve cord, postanal tail and pharyngeal pouches and gill slits
What does Ectotherms use the environment for? to regulate body temperature
What do Endotherms use metabolic heat for? to regulate body temperature
Caecilian large earthworm like amphibia
Amniotic egg evolution allows for adaptation in warmer arid climates
What adaptations enable flight? Hollow bones, streamline bodies and feathers
What does the water cycle not rely on? Decomposers
What two properties all ecosystems share are ? organisms & abiotic enviroment
What would primary succession be found on? New formed volcanic (bare rock) islands
Secondary succession would be found on? soil that's been disturbed
Mutualism both organisms
Community group of multiple species coexisting within a defined location
What does the Phosphorus cycle not have? A gas phase
Carbon is linked closely to what? Earth's climate
What does the Nitrogen cycle rely on? bacteria fixation
Every level of the energy pyramid loses energy by how much? 10 percent
Keystone Species pivotal component of a community
harmfl chemical travel throughout trophic lvls and are.. bioaccumulate
What are the living parts of the ecosystems? Communities
Created by: 648403736
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