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Flashcards in Chapter 1 Deck (40):
1

Seven properties and precesses are associated with life

1) Order, 2) Reproduction, 3) Growth and Development, 4) Energy Processing, 5) Regulation, 6) Response to the environment, 7) Evolutionary Adaptation.

2

Biosphere

All of the environments on Earth that support life. (Florida)

3

Ecosystem

Consists of all the organisms living in a particular area as well as the physical components. (Florida Everglades)

4

Community

The entire array of organisms in an ecosystem. (All organisms in this wetland ecosystem)

5

Population

Includes all the individuals of a particular species living in an area. (All Alligators living in the wetlands)

6

Organism

An individual living thing. (Alligator)

7

Organ

Made up of several different tissues.(Brain)

8

Tissue

Each in turn made up of a group of similar cells that perform a specific function. (Nervous tissue)

9

Cell

is the fundamental unit of life.

10

Molecule

Is a cluster of small chemical units called atoms held by chemical bonds.

11

The dynamics of ecosystems include two major processes

1) The recycling of chemicals and 2) The flow of energy

12

Most basic chemicals necessary for life

Carbon Dioxide, Oxygen, Water, and various minerals.

13

DNA

is the chemical substance of genes.

14

Genes

the units of inheritance that transmit information from parents to offspring.

15

Chromosomes

Genes that are grouped into very long DNA molecules, which control all the activities of a cell.

16

DNA molecules

made up of two long chains called stands, coiled together into a double helix.

17

nucleotides

The strands are made up of four kinds of chemical building blocks

18

Cell Division

DNA is first replicated or coped, the double helix unzips and new complementary strands assemble along the separated strands.

19

blueprints for making proteins

The DNA of genes

20

Proteins

serve as the tools that actually build and maintain the cell and carry out its activities.

21

Genome

is the entire “library” of genetic instructions that an organism inherits.

22

Bacteria

are the most diverse and widespread prokaryotes.

23

Archaea

prokaryotes live in Earth;s extreme environments.

24

Eukarya

all the organisms with eukaryotic cells.

25

Protists

are a diverse collection of mostly single celled organisms. (has multiple kingdoms)

26

Evolution

can be defined as the process of change that has transformed life on Earth from its earliest beginnings to the diversity of organisms today.

27

Charles Darwin

“On the Organ of Species by Means of Natural Selection” made him synonymous with the concept of evolution.

28

Natural Selection

a mechanism for evolution. Darwin started with two observations, from which he drew two inferences.

29

Individual variation
(Observation 1)

Individuals in a population vary in their traits, many of which are inherited from parents to offspring.

30

Overproduction of offspring.
(Observation 2)

All species can produce far more offspring than the environment can support.

31

Unequal reproductive success
(Inference 1)

Individuals with heritable traits best suited to the local environment are more likely to survive and reproduce than are less well-suited individuals.

32

Accumulation of favorable traits over time
(Inference 2)

As a result of this unequal reproductive success over many generations, a higher and higher proportion of individuals in the population will have the advantageous traits.

33

Hypothesis

a proposed explanation for a set of observations.

34

Theory

is much broader in scope than a hypothesis

35

Discovery Science

Is the process of describing nature without any preconceived expectations.

36

Hypothesis driven science

Involves constructing a specific, testable explanation for a phenomenon based on a set of observations.

37

Scientific Observation

Observation, question, hypothesis, prediction, experimentation.

38

Deductive reasoning

general to specific, is generally used in establishing a test of a hypothesis.

39

Controlled experiment

one that is designed to compare an experimental group with a control group

40

Energy Processing

living things obtain energy from the environment, and use it to power there own activities and chemical reactions.