chapter 1 vocab

Question 1

archaea

Answer 1

one of two prokaryotic domains, the other being Bacteria

Question 2

bacteria

Answer 2

one of two prokaryotic domains, the other being Archaea

Question 3

biology

Answer 3

the scientific study of life

Question 4

biosphere

Answer 4

the entire portion of Earth inhabited by life; the sum of all the planet’s ecosystem

Question 5

cell

Answer 5

lifes fundamental unit of structure and function

Question 6

climate change

Answer 6

a directional change in temperature, precipitation, or other aspect of the global climate that lasts for three decades or more

Question 7

community

Answer 7

the array of organisms inhabiting a particular ecosystem

Question 8

controlled experiment

Answer 8

an experiment designed to compare an experimental group with a control group; ideally, the two groups differ only in the factor of being tested

Question 9

DNA

Answer 9

a nucleic acid molecule, usually a double-stranded helix, in which each polynucleotide strand consists of nucleotide monomers with a deoxyribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G) , and thymine (T); capable of being replicated and determining the inherited sutucture of a cell’s proteins