BIS2B

Lecture

What is the process of Science?

obs→que→hyp→exp→explain(repeat)→theory

who developed theory of evolution?

Aristotle: hierarchal unchanging structure of organisms

Humboldt: ecosystems far apart are similar based on similar global processes

Lyell: slow processes accumulat change over time (eg. grand canyon)

Anning: geological discoveries to explain evolution

Edmonstone: taxidermist that Darwin worked for

Darwin: breeding experiments that prompts idea of phylogenic trees, natural selection

The Eclipse of Darwinism

A period in the early 20th century when Mendelian genetics challenged Darwin's natural selection as the primary explanation for evolutionary change, leading to a decline in the acceptance of Darwin's ideas.

The modern Synthesis

combo of darwinism(evolution) & mendelian genetics(inheritance); what our current theory of evolution is called

What ‘defines’ life? What do all living things share?

properties of life; organized structure, homeostasis, growth, reproduction, adaptation, response to stimuli, energy processing

eg. how does a tree have properties of life?

energy processing: photosynthesis

reproduction: seed

response to stimuli: growing towards the sun

order and organization: traits are organized for optimal survival (leaves on top, roots at bottom)

eg. bacteria?

reproduction: cloning

order and organization: structured with nucleus?? inside and membrane surrounding

response to stimuli: population growth based on surrounding environment

energy processing: respiring

evolutionary change: mutation based on stimulus?

why is fire not alive? what properties does it not meet?

fire do not contain cells (ie. they don’t respire)

what is the smallest unit of life? Why?

Cells; anything smaller than that can’t carry out life processes independently

What is Ecology?

how organisms interact and form relationships with each other

• Biotic

• Abiotic

What is Evolution?

how population genetically change over generations based on internal and external factors

what are the processes of life?

movement, respiration, excretion, reproduction, growth, nutrition, stimulus