A set of rules that scientistd follow for formulating, testing , and eliminating hpotheses
Homeostasis
Maintaining a stable internal environment in a changing external enviroment
Members of the Kingdom Monera are ____ and generally ____
prokaryotic, unicellular
Evidence for evolution was provided by
Charles Darwin
Which of the following is an unusual property of water?
B. It expands when it freezes and has highest density at 4 degrees C
Which of the following is an example of a prokaryotic organism?
D. Helicobater pylori
Reductionism
We can better understand the whole by understanding it parts
Which of the following is not typical of a prokaryotic organism?
B. Has membrane-bound organelles
What does water's high heat capacity mean to organisms?
1. Internal temperatures resisting change
2. Large bodies of water resist freezing solid in winter, keeping homes and food sources available for aquatic organisms.
3. Sweat can carry excess heat out of our bodies.
Cohesion causes _____in water
High amount of surface tension
Which of the following indicates the correct progression of increasing organization?
1. amino acid, polypeptide, protein
2. amino acid, protein, polypeptide
3. Polypeptide, amino acid, protein
4. Protein, Polypeptide, amino acid
1. Amino acid, polypeptide, protien
The nitorgenous base ______ is found in RNA but not in DNA.
Adenine
Guanine
Cytosine
Thymine
Uracil
Uracil
DNA
Genetic information that is stored in long thin molecules
Steatopygea
A trait in the women of Kalahari desert which promotes survival of developing fetus and nursing infants
The correct order of the five kingdoms of living things
1.Monera
2. Protista
3.Fungi
4.Animalia/Metazoa
5.Pantae/Metaphyta
Increasing levels of organization within an organism
Cell, tissue, organ, organ system
In a solution that is basic, the number of
OH is greater than the number of H
All carbs are....
1. amino acids
2. contain N, P, S
3. organic acids
4. composed of atoms of C, H, O
5. composed of atoms of C, H, O, N
4. Are composed of C, H, O
A polysaccharide
1. is composed of many monosaccharides that have been linked together
2. may be straight and unbranhed or highly branched
3. is most likely made of glucose molecules if it is one of the natural poly...
4. may be insoluble because of its large size and structure
The nitrogenous base _____ is found in DNA but not in RNA.
Adenine
Guanine
Cytosine
Thymine
Uracil
Uracil
DNA and RNA are built from
Nucleotides
Life can be defined as
having abililty to metabolize and reproduce
Three domains into which organisms are grouped
1. Archaea
2. Eukarya
3. Eubacteria
All of the members of which are multicelluar?
1. Protista
2. Archaea
3. Eukarya
4. Eubacteria
A. Animalia
Homeostasis
Maintenance of a relatively constant internal environment
The five Kingdoms
1. Monera
2. Protista
3. Fungi
4. Metaphyta
5. Metazoa
Helicobacter pylori
Bacteria that infects the stomach and causes 80% of stomach ulcers
Barry Marshall
Scientist who discovered truth about stomach ulcers
Scientific Method
A set of formal rules for expressing, testing, and eliminating ideas or hypotheses
Hypothesis
A possible explanation for the way a process works that alloes us to make predictions
Testable
1. Someone can devise the hypothesis if it were incorrect
2. We can make a prediction that we can test by experiment
Experiment
A way of testing a hypothesis ot of searching for some unknown effect carried out under controlled conditions
