bio

Question 1

Every living thing has

Answer 1

-cells
-able to reproduce
-able to evolve
-able to process information
-able to growth
-uses energy
-responding to stimulus
-homeostasis

Question 2

main theories

Answer 2

-cell theory
-theory of evolution
-chromosome theory.

Question 3

Difference between hypothesis and theory

Answer 3

A theory is supported by evidence.

Question 4

1660, Robert Hook and Anton Van Lecuwenloock.

Answer 4

first cell
observers

Question 5

cell

Answer 5

highly organized compartment

Question 6

cell theory

Answer 6

-all cells come from preexisting cells.
-all organisms are made of cells.

Question 7

Louis Pasteur’s hypothesis

Answer 7

proved that cells come from preexisting cells.

Question 8

who researched evolution first?

Answer 8

Alfred Russel Walace

Question 9

Evolution meaning

Answer 9

Idea of change over time

Question 10

Population

Answer 10

Group of the same individuals

Question 11

Fitness

Answer 11

ability to reproduce.

Question 12

Adaptation

Answer 12

A trait that increases fitness.

Question 13

Tree of life

Answer 13

every species comes from preexisting species.

Question 14

chromosomes

Answer 14

super condenced DNA

Question 15

1902, Walter Sutton and Theodor Bover

Answer 15

first ones that thought of DNA

Question 16

1950

Answer 16

We discovered that chromosomes are molecules of deoxyribose nucleic acid

Question 17

James watson and Francis Crick

Answer 17

proposed the double helix

Question 18

DNA cicle

Answer 18

Replication, Transcription, translation

Question 19

The more energy you produce

Answer 19

The bigger you are

Question 20

Replication

Answer 20

New cell

Question 21

Transcription

Answer 21

RNA

Question 22

Translation

Answer 22

Protein

Question 23

Phylogeny

Answer 23

genealogical relationship between all organisms

Question 24

3 main groups

Answer 24

Bacteria, Archaea, Eukaryota

Question 25

eukaryote kingdoms

Answer 25

Animal kingdom, Plant, Fungus, Protista

Question 26

Taxonomy

Answer 26

effort to name and classify all organisms

Question 27

In 1735 Carl Linnaeus

Answer 27

estabilished taxonomy

Question 28

4 main atoms

Answer 28

Hydrogen, Oxygen, Nitrogen, Carbon

Question 29

Protons can't...

Answer 29

Never change

Question 30

Protons,Neutrons are...

Answer 30

+,-

Question 31

Orbitals bond...

Answer 31

when there's only one

Question 32

K^-

Answer 32

gained

Question 33

K^+

Answer 33

lossed

Question 34

Atomic number

Answer 34

number of protons and neutrons

Question 35

Atomic weight

Answer 35

Number of protons + electrons: dalton

Question 36

an unpaired valence electrons is called

Answer 36

the valance of an atom

Question 37

Isotopes

Answer 37

elements with different numbers of neutrons

Question 38

Covalent

Answer 38

sharing electrons

Question 39

Molecule

Answer 39

substance held together by covalent electrons

Question 40

Compounds

Answer 40

Molecules in which atoms of different elements are held together

Question 41

What does the electro thing tells about atoms

Answer 41

how strong the element is

Question 42

Partial negative charge(S^-), Partial positive charge(S^+)

Answer 42

polar bonds

Question 43

Non polar

Answer 43

sharing equally

Question 44

Polar

Answer 44

sharing unevenly (.6-1.4)

Question 45

Ionic

Answer 45

stealing( 1.5 or more)

Question 46

Cation

Answer 46

losses an electron, positive charge

Question 47

Anion

Answer 47

gains an electron, negative charge

Question 48

Solvent

Answer 48

dissolver

Question 49

solute

Answer 49

anything dissolved in a solvent

Question 50

weak electrical attractions are called...

Answer 50

hydrogen bonds

Question 51

Hydrophilic

Answer 51

love water(atoms and molecules)

Question 52

hydrophobic

Answer 52

water hater(non polar compounds)

Question 53

Water structure

Answer 53

small, polar

Question 54

cohesion

Answer 54

surface tension

Question 55

adhesion

Answer 55

water binds to plastic or glass

Question 56

ice

Answer 56

less dense than water

Question 57

Acids

Answer 57

substance that gives up protons

Question 58

Bases

Answer 58

substances that acquire protons during chemical reactions

Question 59

What does Ph measures?

Answer 59

measures how much H3O+ there is in a liquid

Question 60

Hydronium

Answer 60

HgO+

Question 61

Hydroxide

Answer 61

-OH

Question 62

H+

Answer 62

concentration of hydronium

Question 63

More H+

Answer 63

acid

Question 64

Less H+

Answer 64

bases

Question 65

7

Answer 65

neutral

Question 66

Ph=

Answer 66

-log(7x10^(-9))=PH