Octubre 7 Bi

Question 1

The variety of life

Answer 1

Biodiversity

Question 2

Is a particular type of living things that can reproduce by interbreeding among themselves

Answer 2

Species

Question 3

Is the scientific study of all forms of life , or all types of organisms

Answer 3

Biology

Question 4

Is any individual living thing

Answer 4

Organism

Question 5

Is the basic unit of life

Answer 5

Cell

Question 6

All of the chemical processes that build up or break down materials

Answer 6

Metabolism

Question 7

The genetic material is a molecule called deoxyribonucleic

Answer 7

DNA

Question 8

Is an organized group of related parts that interact to form a whole

Answer 8

System

Question 9

Is a physical environment with different species that interact with one another and nonliving things

Answer 9

Ecosystem

Question 10

Is the maintenance of constant internal conditions in an organism

Answer 10

Homeostasis

Question 11

All living things and all the places they are found on Earth

Answer 11

Biosphere

Question 12

Is the change of living things over time

Answer 12

Evolution

Question 13

An inherited trait that gives an advantage to individual organisms and is passed on to future generations

Answer 13

Adaptation

Question 14

Includes using our senses to study the world , but it may also involve other tools

Answer 14

Observation

Question 15

Are descriptions of a phenomenon that can include sights , sounds and smells

Answer 15

Qualitative data

Question 16

Are characteristics that can be measured or counted , such as mass , volume and temperature

Answer 16

Quantitative data

Question 17

Is a proposed answer for a scientific question

Answer 17

Hypothesis

Question 18

Is a condition that is manipulated , or changed by a scientist

Answer 18

Independent variable

Question 19

Are observed and measured during an experiment

Answer 19

Dependent variable

Question 20

The conditions that do not change during an experiment

Answer 20

Constants

Question 21

Is a proposed explanation for a wide range of observations and experimental results that is suppory by a wide range of evidence

Answer 21

Theory

Question 22

Is the smallest basic unit of matter

Answer 22

Atom

Question 23

Is one particular type of atom and it cannot be broken down into a simpler substance by ordinary chemical means

Answer 23

Element

Question 24

Is a substance made of atoms of different elements bonded together in a certain radio

Answer 24

Compound

Question 25

Is an atom that has gained or lost one or more electrons

Answer 25

Ion

Question 26

Forms through the electrical force between oppositely charged ions

Answer 26

Ionic bond

Question 27

Forms when an atom share a pair of electrons

Answer 27

Covalent bond

Question 28

Is two or more atoms held together by covalent bonds

Answer 28

Molecule

Question 29

Is an attraction between a slightly negative atom often oxygen and nitrogen

Answer 29

Hydrogen bond

Question 30

The attraction among molecules of a substance

Answer 30

Cohesion

Question 31

The attraction of molecules of different substances

Answer 31

Adhesion

Question 32

Is a mixture of substances that is the same throughout

Answer 32

Solution

Question 33

Is the substance that is present in the greater amount and that dissolves another substance

Answer 33

Solvent

Question 34

Is a substance that dissolves in a solvent

Answer 34

Solute

Question 35

is a compound that releases a proton—a hydrogen ion (H + )—when it dissolves in water.

Answer 35

Acid

Question 36

are compounds that remove H + ions from a solution.

Answer 36

Bases

Question 37

A solution’s acidity, or H + ion concentration, is measured by the

Answer 37

Ph

Question 38

Was the first to identify cells , and he named them; year

Answer 38

Hooke , 1665

Question 39

Because he made better lenses, observed cells in greater detail.;year

Answer 39

Leeuwenhoek , 1674

Question 40

Was the first to note that plants are made of cells;year

Answer 40

Schleiden , 1838

Question 41

concluded that all living things are made of cells; year

Answer 41

Schwann , 1839

Question 42

proposed that all cells come from other cells , year

Answer 42

Virchow , 1855