Lecture Two - Unifying Theme In Biology

Question 1

The hierarchy of biological organization

Answer 1

Atom
Molecule
Cells, tissues, organs
Ecological organization

Question 2

Atoms and elements

Answer 2

Basic unit of matter

Nucleus and electrons

Question 3

Homonuclear

Answer 3

Same atoms

Question 4

Heteronuclear

Answer 4

Different atoms

Question 5

Cells

Answer 5

Smallest unit of life3

Structural and fucntonal unit of all livng organisms

Question 6

Tissues

Answer 6

Assembly of cells, carry out specific functions

Question 7

Epitheial tissues

Answer 7

Line organs

Question 8

Musculoar tissues

Answer 8

Cntract muscles

Question 9

Nervous tissues

Answer 9

Relay info from muscles

Question 10

Connective tissues

Answer 10

Hold muscles in place

Question 11

Organs

Answer 11

Composed of two or more tissues working together

Alost every organ is composed of all4 types of tissues

Question 12

Organisms

Answer 12

Independent living unit

Question 13

Unicellular organisms

Answer 13

Single cell that carries out all the functions

Question 14

Multicellular

Answer 14

Made up of man. Cells that are all specialized for different functions

Question 15

Species

Answer 15

Group of organisms that share the same atributes

Question 16

Populations

Answer 16

Organism of the same species

Question 17

Communities

Answer 17

Assembly of population of different species

Species depend on the envrionment

Question 18

Ecosystems

Answer 18

Community of organisms present in an envrinment and their interactiosw itht he surroundings

Question 19

Biosphere

Answer 19

Part of the earth including air, land, surface where life occurs
All parts that ahve living things

Question 20

2 process of any ecosystem

Answer 20

Cycling of nutrients

Flow of energy from sunlight —> prodcuers —> cosumers

Question 21

World wie producers

Answer 21

Plants

Question 22

3 types of organisms involved in he flow of energy

Answer 22

Producer
Consumers
Decomposers

Question 23

Producers

Answer 23

Producer their own food (energy) from raw material

Question 24

Consummers

Answer 24

Rely on producers

Question 25

Decomposers

Answer 25

Obtain energy by breaking down dead organic matter

Question 26

DNA

Answer 26

Heritable material that guides cell activity

Question 27

Biodiversty

Answer 27

Variety of living things

Question 28

Two main forms of cells

Answer 28

Eukaryotic and prokaryotic

Question 29

Prokaryotic

Answer 29

Lack organelles, DNA is not sperated bya nucleus

Question 30

Eukaryotic

Answer 30

Divided into organells, contains DNA in the nucleus

Question 31

3 domains of life

Answer 31

Bacteria
Archea
Eukarya

Question 32

Binomial system

Answer 32

Each orgaism gets two latin names
Genus name capitalized
Both italisized

Question 33

Why does the process of evolution occur

Answer 33

There are visual differences for organism because of adaptations to the envrionment

Question 34

Evolutionary change

Answer 34

Modifications of charcteristics

Question 35

What is natural selection

Answer 35

Organisms in population mustr compete for survival

Organisms that are more resourceful and adapted are more likely to reprodce

Question 36

Whats a disadvatnage to envronments always changing

Answer 36

Once an advantage, can now be a liability