Biology

Question 0

controlled experiment

Answer 0

when all other variables are unchanged

Question 1

hypothesis

Answer 1

a proposed scientific explanation for a set of observations

Question 2

manipulated variable

Answer 2

the variable that is deliberately changed

Question 3

responding variable

Answer 3

the variable that is observed and that changes in response to the manipulated variable

Question 4

control group

Answer 4

the thing that wasn’t changed

Question 5

exper. group

Answer 5

the thing that is changed

Question 6

constant

Answer 6

the things that don’t change

Question 7

list char. living things

Answer 7

living things are based on a universal genetic code
living things are made up of cells
living things maintain a stable internal environment
taken as a group, living things evolve
living things grow and develop
living things respond to their environment
living things reproduce
living things obtain and use material and energy

Question 8

Levels of Org. living things large to small

Answer 8

biosphere
ecosystem
community
population
organism
groups of cells
cells
molecules

Question 9

covalent bond

Answer 9

forms when electrons are shared between atoms

Question 10

ionic bond

Answer 10

is formed when one or more electrons are transferred from one atom to another

Question 11

hydrogen bond

Answer 11

when hydrogen molecules join together

Question 12

solute vs solvent

Answer 12

solute is the substance that is dissolved and the solvent is the substance in which the solute dissolves

Question 13

carbohydrate

Answer 13

compounds made up of carbon hydrogen and oxygen

Question 14

monosaccharides

Answer 14

single sugar molecules

Question 15

lipids

Answer 15

made mostly from carbon and hydrogen atoms

Question 16

nucleic acids

Answer 16

macromolecules containing hydrogen

Question 17

nucleotides

Answer 17

consist of three parts: a 5 carbon sugar a phosphate group, and a nitrogenous base

Question 18

protein

Answer 18

macromolecules that contain nitrogen as well as carbon, hydrogen, and oxygen

Question 19

product vs reactants

Answer 19

the elements or compounds that enter into a chemical reaction are known as reactants the elements or compounds produced by a chemical reaction are known as products

Question 20

catalyst

Answer 20

a substance that speeds up the rate of a chemical reaction

Question 21

enzyme

Answer 21

proteins that act as biological catalysts

Question 22

substrates

Answer 22

the reactants or enzyme catalyzed reactions

Question 23

exponential growth

Answer 23

occurs when the individuals in a population reproduce at a consistent rate

Question 24

logistic growth

Answer 24

occurs when a populations growth slows or stops following a period of exponential growth