biology is the study of
all organisms possess dna, dna
contains information for growth and development
instructions for traits that are passses from parents to offspring are known as
keeping things the same
what is the study of communities or organisms in relation to their environment?
What are charcteristics of living things?
the smallest units that can ccarry on all functions of life are called?
living things need?
need energy for life processes
are composed of cells
have the ability to reproduce?
all organisms are composed of
all living things maintain a balance within their cells and the environment through the process of
which of the follwing is a charcteristic of all living things/
a scientist noticed that in acidic pond water some salamanders developed with curved spines this was an?
scienitific hypotheses are most often tested by the process of?
a hypothesis is?
a teestable posssible explanation of an observation
a unifying explaintion for a broad range of observations is a
scientists usually design experiments
with a good idea of the expeted experimental results
a scientific theory
may be revised as new evidence is presentned
the word theoryused in a scientific sense means
a highly tested, generally accepted principle.
which of the following components of a scientific investigation would benefit form communication between scientests?
measuring observing analyzing data
typically, the order in which the ste ps of the scientific method are apllied is?
observatins, hypothesis, predictions, controlled testing, verifaction, theory.
a light microscope that has an objective lens of 10* and an ocular lens of 250* has a magnifcation of
scientisit share their research results by
publishing in scientific journals and presenting at scientific meetings
___)is teh study of the i nteraction of organisms wiht their environment and with each other
to function properly, all living things must maintain a constant internal environment through the process of___________?
starting in advance the result that may be obtained from testing a hypothesis is called________?
a unifying explanatin for a broad range of observations is a _________?
a ______ experiment is one in which the conditin suspected to cause the effect is compared to the same situation w ithout the suspected condition?
the base unit for length in the System International d'Unites is the______---
A ____ electron microscompe passes a beam of electrons over a specimen's surface, whereas a _____ electron microscope passes a beam of electrons throught a thin slice of a specimen.