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Flashcards in Biology: learning about biology Deck (29):
1

Basic characteristics of living things 5

1. Consist of one or more cells
2. Take in and use energy and materials
3. Sense and respond to changes in the environment
4. Maintain homeostasis
5. Reproduce and grow

2

Evolution means

Change

3

Biological organisms evolve by changes in DNA

T

4

Organisms classified into groups with similar characteristics 2

1. Humans are primates
2. Humans are mammals and vertebrates

5

Humans are related to every other life form

T

6

Humans share characteristics with some of these life forms 4

1. Body hair
2. Manual dexterity
3. Complex brain
4. Apes

7

Apes are our closest

Primate relatives

8

Nature is organized into eleven general levels 5

1. Atom
2. Molecule
3. Cells
4. Organs
5. Organ systems make up entire organisms

9

Molecule is

Combination of atoms

10

Cells are

Built from atoms and molecule and organized into tissues

11

Organs are

Made up of different kinds of tissues

12

Levels of organization 4

1. Individuals are grouped into populations
2. Populations of different organisms interact in communities
3. Communities interact in ecosystems
4. Biosphere

13

Biosphere 2

1. Most inclusive level of organization
2. Earths waters, crust, and atmosphere

14

Flow of energy and materials 3

1.Organisms must take in energy and materials
2. Energy flows into the biosphere from the sun
3. Producers

15

Energy flows into the biosphere from the sun 3

1. Solar energy used by plants
2. Fuel used for building tissues
3. Other raw materials come from air, soil, and water

16

Producers are

Self feeding organisms

17

Cycling of materials 3

1. Consumers
2. Bacteria and fungi
3. One-way flow of energy through organisms and cycling of materials among them connects each to the others

18

Consumers 2

1. Animals, including humans
2. Feed on plant materials or other animals

19

Bacteria and fungi 2

1. Obtain energy by breaking down tissues
2. Recycle materials back to producers

20

Ecosystems 2

1. Webs of life
2. Examples of large-scale effects of human activities

21

Webs of life 2

1. Actions in one part of the web affect the whole
2. May eventually impact the entire biosphere

22

Examples of large scale effects of human activities 3

1. Loss of biodiversity
2. Climate change
3. Acid rain

23

Scientific studies do what 3

1. Systematic
2. Gather information by doing experiments
3. Or record detailed observations

24

Steps in the scientific method 5

1. Observe some natural phenomenon
2. Identify a question or problem to explore
3. Develop a testable hypothesis
4. Make a specific prediction
5. Test a prediction

25

Critical thinking includes

Evaluating information objectively

26

Steps in critical thinking 2

1. Evaluate the source of information
2. Evaluate the content of information

27

Evaluate the source of information 2

1. Credible scientific evidence is better than opinions and hearsay
2. Question credentials and motives

28

Evaluate the content of information 2

1. Differentiate between cause of an event and correlation with an event
2. Differentiate between fact and opinion

29

Limits of science 3

1.Science cannot explain the meaning of life, and why each of us dies at a certain moment
2. Subjective answers shaped by experiences and beliefs
3. Science does not involve value judgments, and may lead to situations where research is at odds with moral or ethical standards