CAL POLY BIO 123 MIDTERM 1
LECTURES 1-4 EXAM QUESTIONS AND
ANSWERS
what is sex - Correct Answers -In humans: male, female, or intersex; Based
chromosomes, anatomy, eggs/sperm
What is Biology? - Correct Answers -The Study of Life
what is sexual reproduction - Correct Answers -Offspring has genetic material from two
parents
difference between science and pseudoscience - Correct Answers -Both science and
pseudoscience claim that evidence is key; however, only science provides valid,
credible, testable evidence. They both formulate hypotheses, but pseudo-scientists look
exclusively for "data" that support their hypothesis and ignore all the rest.
what is the scientific method? - Correct Answers -1. Ask Question
2. Propose Hypothesis
3. Design Study a. Observational b. Experimental
4. Make Predictions
5. Perform Study, Analyze Data
Were predictions met?
In scientific method, ask were predictions met? - Correct Answers -YES = Hypothesis
supported, null hypothesis rejected
NO = Hypothesis rejected, null hypothesis supported
what axis on the graph are the dependent and independent variables on? - Correct
Answers -Dependent variable: vertical
Independent variable: horizontal
example of sequential hermaphrodites - Correct Answers -the biggest female fish of the
group will turn into a male
, Oviparity/Oviparous: - Correct Answers -species that lay eggs, oviparous species, some
reptiles, some amphibians, and majority of invertebrates/spiders
Viviparity/viviparous: - Correct Answers -have live young, most mammals, rattlesnakes
what is spawning - Correct Answers -eggs and sperm are released into the environment
(broadcast spawning), eggs and sperm are on their own
laying eggs into the water
what is brooding - Correct Answers -Carrying the offspring with you (usually eggs) to
protect them. They have already been fertilized.
what is the dependent variable? - Correct Answers -dependent variable is the variable
being tested in a scientific experiment. i.e reported change in penis size
what is the independent variable? - Correct Answers -*The independent variable is the
one that is changed by the scientist. i.e. comparing treatment group vs control group
why do we never use the word prove in biology - Correct Answers -Evidence only goes
as far as that study.
what is a Single blind study: - Correct Answers -participants don't know whether they
got test drug or placebo
what is a double blind study? - Correct Answers -participants and scientists don't know
whether they got test drug or placebo
what are predictions? - Correct Answers -your predictions are the results of your study if
you hypothesis is true
what is a placebo - Correct Answers -a substance that has no therapeutic effect, used
as a control in testing new drugs.
How do we find out whether something works or not? - Correct Answers -Ask your
doctor
• Look on Wikipedia, etc. (beware) • Look up reputable sources
Does size "matter?" - Correct Answers -USA ~ 5.6 inches long when erect, 4.8 inches
girth, women find larger flaccid penises more attractive
one night stand women wanted 6.4 inches as for a long partner they want 6.3 in length--
> these are all higher than the average american penis size therefore women prefer a
larger penis size
According to Chapter 1 of "Bonk", which of the following did a sex researcher actually
measure? - Correct Answers -How far ejaculate travels when a man orgasms.
LECTURES 1-4 EXAM QUESTIONS AND
ANSWERS
what is sex - Correct Answers -In humans: male, female, or intersex; Based
chromosomes, anatomy, eggs/sperm
What is Biology? - Correct Answers -The Study of Life
what is sexual reproduction - Correct Answers -Offspring has genetic material from two
parents
difference between science and pseudoscience - Correct Answers -Both science and
pseudoscience claim that evidence is key; however, only science provides valid,
credible, testable evidence. They both formulate hypotheses, but pseudo-scientists look
exclusively for "data" that support their hypothesis and ignore all the rest.
what is the scientific method? - Correct Answers -1. Ask Question
2. Propose Hypothesis
3. Design Study a. Observational b. Experimental
4. Make Predictions
5. Perform Study, Analyze Data
Were predictions met?
In scientific method, ask were predictions met? - Correct Answers -YES = Hypothesis
supported, null hypothesis rejected
NO = Hypothesis rejected, null hypothesis supported
what axis on the graph are the dependent and independent variables on? - Correct
Answers -Dependent variable: vertical
Independent variable: horizontal
example of sequential hermaphrodites - Correct Answers -the biggest female fish of the
group will turn into a male
, Oviparity/Oviparous: - Correct Answers -species that lay eggs, oviparous species, some
reptiles, some amphibians, and majority of invertebrates/spiders
Viviparity/viviparous: - Correct Answers -have live young, most mammals, rattlesnakes
what is spawning - Correct Answers -eggs and sperm are released into the environment
(broadcast spawning), eggs and sperm are on their own
laying eggs into the water
what is brooding - Correct Answers -Carrying the offspring with you (usually eggs) to
protect them. They have already been fertilized.
what is the dependent variable? - Correct Answers -dependent variable is the variable
being tested in a scientific experiment. i.e reported change in penis size
what is the independent variable? - Correct Answers -*The independent variable is the
one that is changed by the scientist. i.e. comparing treatment group vs control group
why do we never use the word prove in biology - Correct Answers -Evidence only goes
as far as that study.
what is a Single blind study: - Correct Answers -participants don't know whether they
got test drug or placebo
what is a double blind study? - Correct Answers -participants and scientists don't know
whether they got test drug or placebo
what are predictions? - Correct Answers -your predictions are the results of your study if
you hypothesis is true
what is a placebo - Correct Answers -a substance that has no therapeutic effect, used
as a control in testing new drugs.
How do we find out whether something works or not? - Correct Answers -Ask your
doctor
• Look on Wikipedia, etc. (beware) • Look up reputable sources
Does size "matter?" - Correct Answers -USA ~ 5.6 inches long when erect, 4.8 inches
girth, women find larger flaccid penises more attractive
one night stand women wanted 6.4 inches as for a long partner they want 6.3 in length--
> these are all higher than the average american penis size therefore women prefer a
larger penis size
According to Chapter 1 of "Bonk", which of the following did a sex researcher actually
measure? - Correct Answers -How far ejaculate travels when a man orgasms.
