Uw madison zoology 101 Study guides, Class notes & Summaries

Basics of diffusion, gradients, and how they relate - Answer-Diffusion: spontaneous movement of very small things. It requires no energy investment by the organism (other than keeping the temperature above freezing) --direction is random Gradients: top of gradient = high concentration, bottom of gradient = low concentration --diffuses high to low Basics of diffusion across a semipermeable barrier - AnswerFactors that speed up or slow down diffusion - Answer-size: smaller things diffuse fas...

Basics of diffusion, gradients, and how they relate - Diffusion: spontaneous movement of very small things. It requires no energy investment by the organism (other than keeping the temperature above freezing) --direction is random Gradients: top of gradient = high concentration, bottom of gradient = low concentration --diffuses high to low Basics of diffusion across a semipermeable barrier - Factors that speed up or slow down diffusion - size: smaller things diffuse faster the visco...

Why don't amoeba need circulatory systems? - Because they are immersed in particles unlike humans. They use phagocytosis to diffuse O2 and food into their bodies. They release CO2 back in the environment with ease. What is a sink for O2 and a producer of CO2 during cellular respiration? - Mitochondria (as well as eukaryotes) What is required for multi-cellular organisms to help with diffusion? - Circulatory, Digestive, and respiratory systems Animal cells can be surrounded by either......

Why are there so many different kinds of organisms? - -Many different species -Variation within species and between species Geological Evidence - -Fossil record suggests that organisms change -Earth is very old (4.6 billion years) -Biological life is also very old (3.5 billion years) Linnaeus' Classification - -He developed the two-part (binomial) format for naming species -Nesting strategy- placing similar species into increasingly general categories Cuvier's Theory - -Developed ...

4 things which effect density - B: birth I: Immigration D: death E: emigration 4 types of ecology - - population - organism - community - ecosystem ecosystem ecology - energy flow between organisms community ecology - interactions among species organism ecology - how organsims structure and behavior meet environmental challenges population ecology - factors of how many individuals of a species live in an area reasons why a species may be absent from an area (4) - 1. dis...

4 things which effect density - B: birth I: Immigration D: death E: emigration 4 types of ecology - - population - organism - community - ecosystem ecosystem ecology - energy flow between organisms community ecology - interactions among species organism ecology - how organsims structure and behavior meet environmental challenges population ecology - factors of how many individuals of a species live in an area reasons why a species may be absent from an area (4) - 1. dis...