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First Science Quiz
Terms in this set (105)
Life arose more than _____ __________________ years ago.
First organisms were ____________ ____________.
New organisms arose from _______________ kinds.
organisms change over time
Today, there are ____________ of species.
They inhabit ___________ __________ ____________ of earth today.
Almost every region
What are the 6 major themes of biology?
Cell structure and function, stability and homeostasis, reproduction and inheritance, evolution, interdependence of organisms, and matter, energy, and organization
The _______ is the basic unit of life
All organisms are __________ _____ _______ _____________ _________ __________.
made of and developed from cells.
Some are composed of only a single cell (_______________) which is usually _____________ _____ ______________.
Identical to parent
Most organism are composed of many cells (___________________)
Cells are ______________ and undergo differentiation.
Cells are _________ (microscopic)
Cells are ______________ _________________.
Cells contain specialized structures (_____________) that carry out the life processes.
Many ____________ _________ _____ ___________ exist.
different kinds of cells
All cells are surrounded by a _____________ _______________.
All contain a set of instructions called DNA, (_____________ ______________).
Organisms must maintain very stable internal conditions- ______________
________________, __________ ____________, and _____________ ___________ must be maintained.
Temperature, water content, and chemical content.
All organisms produce new organisms like themselves. They _____________.
Organisms transmit heredity information to their offspring. This is ______________.
DNA= the genetic information in _______ _________.
DNA contains instructions for traits (__________)
What makes the structures and complex chemicals necessary for life?
The DNA in every body cell (also called ____________ __________) is exactly alike.
There are 2 types of reproduction: ____________ and ___________.
Sexual and Asexual
In sexual reproduction, heredity information from _____ ______________ _______________ of the same species are combined.
Two different organisms
Egg and sperm= __________ (______________ ______)
Zygote (Fertilized Egg)
The zygote contains heredity information from both ____________.
In asexual reproduction, heredity information from ______, usually unicellular , ____________ that divides.
____________ ________ contain __________ ___________ information.
Genetic information is from a ___________ _____________.
Populations of organisms _________ (or ____________) over generations (time).
It explains how many different kinds of organisms came into existence. Different kinds of organisms are called
It explains how __________ organisms are ___________ to _________ organisms.
Related to past
It explains why ____________ ________ ______ ____________ the way they do.
Organisms look and behave
It provides a basis for exploring the _______________ ___________ different groups of organisms.
Natural selection is the ____________ __________ ___ ________________.
Driving force in evolution.
Organisms that have certain _____________ __________ are better able to ________________ ________________ than organisms that lack these traits.
Survival of organisms with favorable traits cause a ______________ ______________ ____ _______________ __________ _________ _______________ (AKA "_____________ ___ ______ ______________).
Gradual change in populations over many generations
Survival of the Fittest
The interaction of organisms with one another and with their environment is called ____________.
___________ and _____________ depend on each other for food and pollination (______________)
Insects and Flowers
All organisms need substances such as _____________, __________, and _________ from their environment.
Nutrients, Water, and Gases
The ____________ ____ _______ _______________ depends on the healthy functioning of organisms in that environment.
Stability of the Environment
Living things are _____________ ________________
Living things require a _____________ _____________ ____ _____________ to maintain their orderly state.
Constant supply of energy
All energy comes from the _______ (either directly or indirectly)
____________________ is the process by which some organisms capture the energy from the _______ (solar) and transform it into energy (chemical).
These organisms, those that make their own food are called ______________.
________________- use solar energy (photosynthesis) to get energy.
They do this by converting _____ and ____ into sugar and ____
H2O and CO2
___________- Use different chemical processes to get energy.
_____________ are organisms that must take in food to meet their energy needs. Consumers are called heterotrophs.
Who consumes autotrophs?
Herbivores, carnivores, and omnivores for their energy needs.
In photosynthesis, complex chemicals are broken down and ______________ ______ _____________ and structures needed by organisms.
Reassembled into chemicals
What are the seven characteristics of living things?
Growth and Development, Organization, Responsiveness, Adapt and Evolve, Cells, Energy, and Reproduction
Growth occurs as a result of ______ ___________ and ________ ____________.
Cell division and cell enlargement
________ _____________is the formation of 2 cells from a ______________ ________.
New cells enlarge as they ____________.
When a cell grows to a size where it's __________ _______ _______ ______ ____________ ______ ______ _____________, the cell divides.
Surface area isn't big enough for it's volume.
There is organization at both the _____________ and _______________ ___________.
Molecular and Cellular levels.
Cells take in substances from their environment and organize them in _______________ ________.
Specific cell structures, ______________, carry out particular functions.
In _______________ ______________, cells and groups of cells, (tissues), are organized by their function.
What are the groups organized by their function?
The process by which an adult organism arises is called ________________.
This is repeated cell divisions and _______ _________________.
Organisms ____________ ____ __________ in the external environment.
respond to stimuli
Organisms detect and respond to changes in _________, ________, __________ ____ __________, ______ ____________ ____________.
Light, heat, sound and chemical, and mechanical contact.
An organism ________________ it's response
When an organism adapts, it makes adjustments to it's lifestyle which are better suited for the ____________________.
Adaptions may lead to ______________.
The ability to adapt to their environment happens through the process of ______________.
_____________ _________________ are selected for and passed on to offspring. These are called __________________ (AKA "______________ ____ ______ _____________."
"Survival of the Fittest".
All living things are composed of __________.
In multicellular organisms, many are ______________ to perform specific functions.
Cells are always very _________.
The size of multi-celled organisms depends on the ____________ ____ _________ ______ __________ _________.
Number of cells not their size.
Organisms use energy in a process called ________________.
Metabolism is the ______ ____ ____ ____________ ______________.
Sum of all chemical processes.
Organisms require _________ to maintain their ____________ and ____________ organization, to _______, and ____________.
Molecular and cellular
What is the original source of all energy on Earth?
All species have the ability to ________________.
But, reproduction is not _____________ ____ ______________ ___ ______________, but is essential for continuation of a species.
Essential to survival of individual
Employing your _______ ___________ to perceive objects or events.
Based on observations, _____ ___ _______ _____________ _____ _____________.
One or more questions are generated
A statement is _____________ if evidence can be collected that either does or doesn't support it.
Often must be ___________ ______ ____________ ___ _____________.
refined and revised or discarded
A statement made in advance that states the results will be obtained from testing the hypothesis. Often written in the form of "if, then" statement.
_______________ __ _________________or predicting by gathering data under _______________ ________________- conducting a controlled experiment.
Testing a hypothesis
Based on a comparison of a _____________ __________ with an ________________ ____________.
Both groups are identical ______________ _____ _____ ____________ __________________ ______________.
Except for one factor independent variable
Observations and measurements are taken for a particular factor ______________ _____________ in both groups. Driven by or results from ________________ variable.
Measuring involves ________________ _______ that can be measured on ___________ and/or __________________ _________ information that isn't numbers.
Technique of using a _________- a small part to ____________ ______ __________ _______________
Represent the entire popuation
Involves placing observations and measurement (data) in order. ____________ ____________ ____________ ___ _________.
Graph charts tables or maps.
Collected and organized data must be analyzed. Process of ______________ _____________ ________ _____ ______________ ____ ____________ ________ _______________ ___ ____ _______ _______________ __ ______________ or prediction.
Determining whether data are reliable or whether they support or do not support a hypothesis.
Conclusions are made on the basis of facts, not observations. Often ___________ ________ _______ gathered from a study or experiment. Should support the __________________. Should be __________________
Drawn from data
Scientists must share the _________ ___ ________ ___________ with other scientists . __________ findings in ______________. Present their findings at _________________ ____________. Scientists must be ____________.
Results of their studies
Only publish and report tested and proven ideas sharing of ______________ is essential to scientific process. Subject to examination and _____________ by other scientists.
A __________ may be formed after many related hypotheses have been tested and supported with experimental evidence.
A broad and comprehensive statement of what is thought to be true
A _______________ ____ _________ that concisely explains an action or groups of actions. Accepted to be _______. Math equation- E= mc squared
Statement of Fact
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