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Flashcards in Chapter 1 Deck (21):
1

What are 2 ways of studying living things?

Discovering biology
Experimental biology

2

What's involved in the scientific method?

Observations
Ask questions
Propose explanation and hypothesis
Experiment
Use a control: varies in 1 aspect
Report

3

If a hypothesis is tested many times and is irrefutable it is a ____?

theory

4

What are laws?

something consistently observed, mathematically defined, but incompletely explained

5

What two theories define biological sciences?

Cell Theory
Theory of Evolution

6

What is the Cell Theory

All living things are composed of cells
All cells must come from pre-exsisting like cells

7

When were cells discovered?

17th century

8

What did Robert Hooke do?

cellulae
more modern microscopes

9

Who discovered animalcules?

Antwon Leewenhoek

10

Where do cells come from?

pre-exsisting cells (Pasteur proved this)
spontaneous generation

11

What is the Theory of Evolution?

Descent from common ancestor with modifications
Darwin - observations (occurs by nature)

12

What is Natural Selection?

Environment chooses individuals within a population
Adaptions - heritable traits that increase fitness
Artificial selection - through producing things w/ specific traits

13

Why is evolutions a core theme?

It ties together unity(DNA, amino acid) and diversity(1.7 million living species)

14

How is live different?

Biodiversity

15

What is taxonomy?

a classification grouping system developed by Linnaeu

16

List all the taxons.

Domain
Kingdom
Phylon
Class
Order
Family
Genus
Species

17

What are Eukaryotes?

cells with a nucleus
single or multicelled (humans)

18

What are Prokaryotes?

no nucleus/ membranous organelles
single cells

19

How are living things alike?

Live exhibits order
Tendency to evolve
Organisms require energy and nutrients
Organisms sense and respond to change
Organisms use DNA

20

What is the Reductionist approach?

organize life's components into levels
understand small and continue to big

21

What is chemical ecology?

all sciences come together; big picture