Biology Chapter 1 Flashcards Preview

Biology > Biology Chapter 1 > Flashcards

Flashcards in Biology Chapter 1 Deck (45):
1

Name two things the scientific method does.

1. Gradually increases our understanding of the world.
2. Weed out any faulty assumptions or conclusions.

2

Name the 4 steps of the scientific method.

Hypothesis, prediction, experiments, conclusion

3

What is a hypothesis?

And idea that can be tested.

4

What is a prediction?

The logical consequence of a hypothesis.

5

What are experiments designed to do?

Disprove the hypothesis.

6

Why are you experiments designed to disprove, rather than to prove, the hypothesis?

It is easy to disprove an idea, but virtually impossible to prove it.
(example of the scientific method: coral snakes)

7

What group differs from the experimental group?

The control group.

8

To test the new medication you divide patients into two groups. Which group is given the new drug?

The experimental group.

9

To test a new medication you divide patients into two groups. which group is given either the old medication or a placebo?

The control group.

10

What is a placebo?

A pill or injection that contains no medication (used in testing pharmaceutical drugs).

11

Which would give more accurate results – a larger sample or a smaller sample size?

A larger sample size.

12

What is a theory?

A hypothesis which has been supported by many experiments. It has a lot of evidence to back it up.

13

Who said "The mere formulation of the problem is often far more east central bandit solution, which may be a matter of mathematical or experimental skill. To raise new questions, new possibilities, to be guard old problems from a new angle requires creative imagination and marks real advance in science."

Albert Einstein

14

What are the six characteristics of organisms?

They are composed of cells, growth and development, metabolism, they move, they respond to the environment, reproduction

15

A one celled organism is unicellular. Name a unicellular organism.

Bacteria, amoeba

16

And organism with many sales is multicellular. Name a multicellular organism

Plants, animals, people.

17

What is growth?

An increase in size.

18

What is development

A change in proportions or functions.

19

What is metabolism?

All the chemical reactions in the body.

20

What is homeostasis?

Keeping the internal environment constant.

21

What would a unicellular organism use to move?

Cilia, flagella.

22

What is sexual reproduction?

Reproduction where the offspring vary from each other.

23

What is asexual reproduction?

Reproduction where the offspring are identical clones of the original.

24

What is evolution?

The process by which species change over time.

25

Name the two scientists who explain the theory of evolution in 1859.

Charles Darwin and Alfred Wallace.

26

What is another name for the process of evolution?

Natural selection

27

What does "natural selection" mean?

Nature selects the best in each generation.

28

What is another way of saying "natural selection"?

Survival of the fittest.

29

What are the four main points of the theory of evolution?

1. all organisms produce many offspring, that are all different
2. most of the offspring die young before they can reproduce. 3. The few that survive have genes that adapt them to the local environment, so nature select the best genes.
4. over time the population slowly becomes better adapted.

30

Who invented biological classification?

Linnaeus

31

In what year was biological classification invented?

1753

32

Name the order of biological classification from the broadest to the most specific.

Domain, kingdom, phylum, class, order, family, Genus, species.
(Does King Philip climb over family genes specifically?)

33

What is the singular of phylum?

Phyla

34

What is the singular of Genus

Genera

35

How do you write the scientific name of something?

The Genus name followed by the species name.

36

What is the scientific name for a leopard?

Panthera pardus

37

In what domain with the leopard be classified?

Eukarya

38

In what kingdom is the leopard?

Animal

39

In what phylum is the leopard?

Chordates

40

In what class is the leopard?

Mammals

41

In what order is the leopard?

Carnivores

42

In what family is the leopard?

Cats

43

In what Genus is the leopard?

Panthera

44

In what species is the leopard?

Pardus

45

The scientific method is a series of___________?

Steps