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Scientific Method & Life Functions - LE Flashcards | StudBud
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Scientific Method & Life Functions - LE
Scientific Method & Life Functions - LE
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Test Review Living Environment #scientificmethod #lifefunctions #biology #livingenvironment
Flashcards
38 cards
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Questions
38
Answers
1
In order to be accepted, a scientific theory must be...
Based on the results of a single experiment
In line with all previous historical ideas
Controversial and cause debate
Widely tested and supported by extensive data
2
The variable that the scientist is observing and measuring is called the
Dependent Variable
Unidentifiable Variable
Controlled Variable
Independent Variable
3
What term is often used to explain a hypothesis?
Absolute Truth
Wild Guess
Educated Guess
Dynamic Equilibrium
4
Small molecules are combined to form large molecules by the life function of...
Transport
Excretion
Regulation
Synthesis
5
A characteristics of all known living organisms is that they...
Originate from pre-existing life
Carry on heterotrophic nutrition
Require oxygen for respiration
Have complex nervous systems
6
Which statement best describes cellular respiration?
It converts food energy to a usable form
It uses carbon dioxide to produce oxygen
It occurs in animal cells but not plant cells
It stores energy as food molecules
7
Nutrition involves those activities by which organisms
Obtain and process materials needed for other activities
Absorb and circulate materials
Remove cellular waste products
Exchange gases with their environment
8
Which of the following steps of the scientific process would occur last?
Analyze the data from the experiment
Organize the data into charts, tables, and graphs
Form a conclusion based on the data
Repeat the experiment to see if the results are reliable
9
A characteristic of all known living things is that they...
Use Carbon Dioxide
Are Capable of Locomotion
Carry on Metabolic Activities
Use Atmospheric Oxygen
10
True or False: if an organism fails to maintain homeostasis, it will become ill and may die.
True
False
11
The variable that is deliberately changed in an experiment is called the...
Dependent Variable
Hypothetical Variable
Independent Variable
Controlled Variable
12
All scientific investigations begin with:
Conducting an experiment
Forming a hypothesis
Asking a question or Observing a problem
Forming a conclusion
13
If a person goes without eating for a day, his blood sugar level remains about the same, due to
Growth of Cells
Homeostatic Control
Reproduction
Egestion
14
Lab rats do not ingest vitamin C. It is still found in their tissues due to the process of...
Synthesis
Osmosis
Excretion
Locomotion
15
Materials are taken from the environment and then moved through the cytoplasm. This is called..
Coordination and Regulation
Energy Release and Synthesis
Food Processing and Energy Release
Absorption and Circulation
16
For survival, a hummingbird uses a considerable amount of energy. This energy comes from...
Excretion
Regulation
Transport
Respiration
17
Which of the following are metabolic wastes?
Urine, Feces, Sweat, Carbon Dioxide
Carbon Dioxide, Oxygen, Water
Water, Tears, Sweat, Oxygen
Water, Sweat, Urine, Carbon Dioxide
18
Which life process allows plants to make a variety of chemicals, such as poisons and drugs?
Synthesis
Respiration
Digestion
Excretion
19
When scientists investigate the natural world, they follow a series of steps called...
The Scientific Method
The Scientific Recipe
The Recipe for Success
The Standard Procedure
20
Organisms undergo constant chemical changes as they maintain an internal balance known as...
Interdependence
Recombination
Synthesis
Homeostasis
21
Which sequence shows a decreasing level of complexity?
Cells, Tissues, Organs, Organism
Organism, Cells, Organs, Tissues
Organs, Organism, Cells, Tissues
Organism, Organs, Tissues, Cells
22
Which term includes all the activities required to keep an organism alive?
Excretion
Metabolism
Growth
Nutrition
23
Which life activity is not required for the survival of an individual organism?
Respiration
Nutrition
Reproduction
Synthesis
24
Which two word term explains an organism's deviations from and eventual return to homeostasis?
Perfect Harmony
Internal Stability
Dynamic Equilibrium
Life Functions
25
Homeostatic regulation of the body is made possible through coordination by which body systems?
Respiratory and Reproductive
Skeletal and Excretory
Nervous and Endocrine
Circulatory and Digestive
26
Which of the following is not true about a control group in an experiment?
It is used as a standard of comparison
It can be referred to as the placebo group
It is not necessary for a reliable experiment
It receives no experimental treatment
27
The life process of Transport directly involves those activities used to...
Release energy from food
Absorb and distribute materials
Obtain and hydrolyze materials
Produce cellular waste products
28
Which of the following is not a quality of a good experiment?
Data always matches the Hypothesis
Repeatable
Control Group
Large Sample Size
29
When negative feedback occurs, how long does the organism respond to the change?
Organisms do not respond to changes
For the rest of its life
For thirty seconds
Until homeostasis is reached
30
The removal of carbon dioxide and nitrogen wastes from an organism illustrates...
Regulation
Nutrition
Respiration
Excretion
31
Which process includes the other three?
Nutrition
Excretion
Metabolism
Synthesis
32
Why is reproduction a unique life function?
It is not represented in GRRRNETS
It does not require ATP
It is not required for individual survival
The species as a whole does not require it
33
Excretion is best defined as the removal of...
Water molecules from dipeptide hydrolysis
Metabolic wastes from a cell
Undigested material from the digestive tract
Toxic wastes by the process of cyclosis
34
What is the mechanism for an organism's response to change?
Total Meltdown
Positive Feedback
Homeostatic Deviation
Negative Feedback
35
Which term is defined as all the chemical reactions that are required to sustain life?
Metabolism
Nutrition
Synthesis
Regulation
36
Which statement best illustrates the life process of growth?
A dog consumes a bowl of food
Two monosaccharides are formed from a disaccharide
An ameba moves away from a bright light
A bean seed germinates
37
Which statement describes an activity that will maintain homeostasis in an organism?
A shark swims toward a highly polluted region of the ocean
A desert snake enters an underground burrow on a hot day
A polar bear sheds its fur during the coldest winter months
Tree roots grow away from a moisture-rich region of soil
38
The coordination of activities that maintain homeostasis in a constantly changing environment =
Synthesis
Regulation
Digestion
Respiration
