Bio - Test #1

Question 1

What does Biology mean?

Answer 1

Bio - Life science
Ology - The study of

Question 2

What are examples of living things and non living things?

Answer 2

Living - people, plants, animals
Non living - Rocks, metal, glass, plastic

Question 3

What r organisms?

Answer 3

What we call all living things that surround us

Question 4

What are the 6 characteristics of living things?

Answer 4

Cells, reproduction, heredity, metabolism, homeostasis, growth + development

Question 5

What does Unicellular and Multicellular mean?

Answer 5

Uni = 1 cell
Multi = more then 1 cell (many)

Question 6

What r cells?

Answer 6

Smallest unit capable of life functioning.
*All organisms r made up of 1 or more cells.
*It’s the basic structure of all living things.

Question 7

What is Ameoba?

Answer 7

made up of 1 cell

Question 8

What is reproduction?

Answer 8

The process by which organisms make more of their own kind.
* Reproduction is necessary 2 continue life b/c no organism can live 4ever.

Question 9

What is heredity?

Answer 9

The passing of traits from parent 2 offspring.
A) Persons traits, ex: DNA
B) Mutation - change in the DNA of a gene, ex: cancer

Question 10

What is metabolism?

Answer 10

The sum of all chemicals reactions in order 2 obtain & use energy 2 run processes of life.
*Most energy used by living things is Sunlight
*Humans obtain energy - eat meat (animals) + animals
*Plants obtain energy. - photosynthesis

Question 11

What is photosynthesis?

Answer 11

Solar energy + water = sugar molecules

Question 12

What is homeostasis?

Answer 12

The prices in which all living things maintain a stable environment in spite of changes in the external environment.
*Living organisms will die if they cannot maintain internal stability, ex: shivering, sweating, putting on a coat.

Question 13

What is growth and development?

Answer 13

Growth = the process of increasing in size
Development = The process that creates growth + progress (positive changes)

Question 14

What is a biologist?

Answer 14

The scientist that studies biology

Question 15

What r scientific methods?

Answer 15

Set of procedures that biologists follow in order to gain knowledge in the world.

Question 16

What r the 6 stages of the scientific method?

Answer 16

Observation, Q, Hypothesis, Experiment, Analysis, Conclusions

Question 17

What does observation mean?

Answer 17

Statement of knowledge gained through the senses or w/ scientific equipment. Ex of scientific equipment includes microscope, computer
*Keep careful records of all kinds of facts.

Question 18

What does Q mean?

Answer 18

What do scientists want 2 know?
Want 2 learn/know further unknown into after facts

Question 19

What is hypothesis?

Answer 19

An educated guess or prediction
*Not a random guess.

Question 20

What is an experiment?

Answer 20

Planned procedure to test a hypothesis
A) control group - group that receives NO experimental treatment
B) Experimental group - Group that receives the experimental treatment.

Question 21

What is analysis?

Answer 21

Comparing results of the experiment to the hypothesis

Question 22

What is conclusion?

Answer 22

At this point the hypothesis is either supported or rejected thru the analysis.
*Theory - set of related hypothesis that have been tested and confirmed many times by many scientists. Ex: The world is round.

Question 23

What is the goal in science?

Answer 23

To develop theories

Question 24

What is a compound microscope?

Answer 24

Light passes thru 1 or more lenses to produce an enlarged image of a specimen.
*Magnifying power, can view living things.

Question 25

What is en electron microscope?

Answer 25

Forms an image of a specimen using a beam of electrons, rather than light. *Magnifying power, cannot view living things b/c living things cannot survive inside a vacuum and a vacuum is needed to form the beam of electrons.

Question 26

What r the differences between a compound microscope and an electron microscope?

Answer 26

*Compound uses light, electron uses a beam of electrons *Compound CAN magnify living things, electron CAN’T magnify living things *Compound is less strong, electron is more strong.