Intro to Biology Exam 1 Questions
with Verified Answers
Biosphere - ANSWERSearth's includes all life and the places where it exists
Ecosystems - ANSWERSconsists of all living organisms in a particular area and all the
nonliving components of the environment with which life interacts, such as soil, water,
and light
Communities - ANSWERSall organisms in a tide pool (iguanas, crabs, seaweed,
bacteria, etc)
Populations - ANSWERSwithint the community are various groups of interacting
individuals of one species, such as a group of iguanas
Organisms - ANSWERSan individual living thing, like an iguana
Tissues - ANSWERSeach organ is made up of several different ______, such as the
heart ______, such as the heart muscle _______. A ______ consists of a group of
similiar cells performing a specific function.
Cells - ANSWERSthe ____ is the smallest unit that can display all the characteristic of
life
Organelles - ANSWERSfunctional components of calls such as the nucleus, that
houses the DNA
Molecules and Atoms - ANSWERSthe chemical level in the hierarchy. _____ are
clusters of even smaller chemical units called _____.
Bacteria and Archaea - ANSWERSsingle-celled organism that tend to be in groups
Evolution - ANSWERSbiology's unifying theme
Natural selection - ANSWERSworks at population level. Darwin. environment selects
only certain heritable traits from those already existing
Scientific method - ANSWERSobservation, question, hypothesis, prediction,
experiment, and predicted result
Science - ANSWERSway of knowing, an approach to understanding the natural world
that is based on inquiry
, Discovery science - ANSWERSenables us to describe life at its many levels
Hypothesis - ANSWERSa tentative answer to a question -- an explanation on trial
Controlled experiment - ANSWERSan experiment designed to compare an
experimental group (the patients who had a heart attack) with a control group (patients
who did not have a heart attack)
Theory - ANSWERSmuch broader than hypothesis
Matter - ANSWERSanything that occupies space and has mass. found in 3 states: solid,
liquid, and gas
Element - ANSWERSa substance that cannot be broken down into other substance by
chemical reactions
Trace elements - ANSWERSrequired only in small amounts, but cannot live without
them
Proton - ANSWERSa subatomic particle with a single unit of positive electrical charge
Electron - ANSWERSa subatomic particle with a single negative charge
Neutron - ANSWERSelectrically neutral (has no charge)
Nucleus - ANSWERSthe atom's central core
Atomic # - ANSWERSthe # of protons in an atom, determines which element it is.
Protons + neutrons
Mass - ANSWERSa measure of the amount of material in an object
Mass # - ANSWERSthe sum of the # of protons and neutrons in the nucleus
Isotopes - ANSWERSforms of an element that differ in mass
Chemical bonds - ANSWERSinteractions of atoms staying close together, held by these
attractions
Ions - ANSWERSatoms or molecules that are electrically charged as a result of gaining
or losing electrons
Ionic bond - ANSWERSthe attractions between oppositely charged ions. remove extra
ion for negative charge
with Verified Answers
Biosphere - ANSWERSearth's includes all life and the places where it exists
Ecosystems - ANSWERSconsists of all living organisms in a particular area and all the
nonliving components of the environment with which life interacts, such as soil, water,
and light
Communities - ANSWERSall organisms in a tide pool (iguanas, crabs, seaweed,
bacteria, etc)
Populations - ANSWERSwithint the community are various groups of interacting
individuals of one species, such as a group of iguanas
Organisms - ANSWERSan individual living thing, like an iguana
Tissues - ANSWERSeach organ is made up of several different ______, such as the
heart ______, such as the heart muscle _______. A ______ consists of a group of
similiar cells performing a specific function.
Cells - ANSWERSthe ____ is the smallest unit that can display all the characteristic of
life
Organelles - ANSWERSfunctional components of calls such as the nucleus, that
houses the DNA
Molecules and Atoms - ANSWERSthe chemical level in the hierarchy. _____ are
clusters of even smaller chemical units called _____.
Bacteria and Archaea - ANSWERSsingle-celled organism that tend to be in groups
Evolution - ANSWERSbiology's unifying theme
Natural selection - ANSWERSworks at population level. Darwin. environment selects
only certain heritable traits from those already existing
Scientific method - ANSWERSobservation, question, hypothesis, prediction,
experiment, and predicted result
Science - ANSWERSway of knowing, an approach to understanding the natural world
that is based on inquiry
, Discovery science - ANSWERSenables us to describe life at its many levels
Hypothesis - ANSWERSa tentative answer to a question -- an explanation on trial
Controlled experiment - ANSWERSan experiment designed to compare an
experimental group (the patients who had a heart attack) with a control group (patients
who did not have a heart attack)
Theory - ANSWERSmuch broader than hypothesis
Matter - ANSWERSanything that occupies space and has mass. found in 3 states: solid,
liquid, and gas
Element - ANSWERSa substance that cannot be broken down into other substance by
chemical reactions
Trace elements - ANSWERSrequired only in small amounts, but cannot live without
them
Proton - ANSWERSa subatomic particle with a single unit of positive electrical charge
Electron - ANSWERSa subatomic particle with a single negative charge
Neutron - ANSWERSelectrically neutral (has no charge)
Nucleus - ANSWERSthe atom's central core
Atomic # - ANSWERSthe # of protons in an atom, determines which element it is.
Protons + neutrons
Mass - ANSWERSa measure of the amount of material in an object
Mass # - ANSWERSthe sum of the # of protons and neutrons in the nucleus
Isotopes - ANSWERSforms of an element that differ in mass
Chemical bonds - ANSWERSinteractions of atoms staying close together, held by these
attractions
Ions - ANSWERSatoms or molecules that are electrically charged as a result of gaining
or losing electrons
Ionic bond - ANSWERSthe attractions between oppositely charged ions. remove extra
ion for negative charge
