Evolution 1
The presence of tall trees in the savannah has selected for longer necks of giraffes because they are able to reach their food. Which type of selection is this?
A) Stabilizing
B) Directional
C) Disruptive
B) Directional
True or false? The reason we have seasons is because of differences in atmospheric circulation between the poles and the equator.
A) True
B) False
B) False
A marine biologist records the number of sea turtles spotted on beaches during the months of June, July, and August. Which variable is categorical and which is continuous?
A) Number of sea turtles is continuous, month is categorical
B) Number of sea turtles is categorical, month is continuous
A) Number of sea turtles is continuous, month is categorical
What were the independent and dependent variables in the shrimp on treadmills experiment?
A) Independent variable: injection type, dependent variable: oxygen uptake
B) Independent variable: oxygen uptake, dependent variable: injection type
A) Independent variable: injection type, dependent variable: oxygen uptake
300: Which shape would a graph depicting a tradeoff between two traits look like?
A) No slope
B) Positive linear slope (Direct relationship)
C) Negative linear slope (Inverse relationship)
D) Logarithmic
C) Negative linear slope (Inverse)
A tsunami hits an island with a small population of crabs. Crabs with rougher shells happen to be in a safe lagoon and survive the storm. After the storm, there is a higher frequency of the rough shell allele within the population. Which mechanism of evolution is this?
A) Mutation
B) Genetic drift
C) Gene flow
B) Genetic drift
True or false? Warm air holds more water than cool air.
A) True
B) False
A) True
A professor conducts a study attempting to answer whether the egg viability of butterflies is impacted by the plant the butterfly consumed as a caterpillar. Is this a proximate or ultimate question?
A) Proximate
B) Ultimate
B) Ultimate
At the end of the summer, many caterpillars pupate and are in an immobile stage for the duration of the harsh winter. Which strategy is the organism using to deal with temperature extremes?
A) Migration
B) Storage
C) Dormancy
D) Thermoregulaton
C) Dormancy
Which pattern usually occurs after genetic drift happens to multiple small populations?
A) Diversity within and between populations goes down
B) Diversity within a population goes down, diversity between populations goes up
C) Diversity within and between populations goes up
D) Diversity within a population goes up, diversity between population goes down
B) Diversity within a population goes down, diversity between populations goes up
Fish in a river with light colored sand have higher survivorship and reproduction after their color is lightened by exposure to the sun. Which criteria of natural selection does this situation meet?
A) All of them, this is natural selection
B) Phenotypic variation and differential reproduction
C) None of them
D) Phenotypic variation and heritability
B) Phenotypic variation and differential reproduction
Latitude is the MOST accurate predictor of which biome a given area will be.
A) True because atmospheric circulation cells are constant across a given latitude
B) False because there are many factors that predict biomes
C) False because longitude is the most accurate predictor of biomes
D) False because of climate change
B) False because there are many factors that predict biomes
A team of researchers are tasked with determining which pesticide works best to eliminate aphid infestations in tomato plants. Which type of research is this?
A) Applied
B) Basic
A) Applied
Which of the following is NOT an example of thermoregulation?
A) The high metabolic rate of skunk cabbage melting snow around the plant
B) A snake sitting in the sun when it is colder out and and in the shade when it is warmer out
C) A bear hibernating during the harsh and freezing winter
D) Shivering of a mouse during an ice storm
C) A bear hibernating during the harsh and freezing winter
A gardener plants flowers of two different heights in a garden with basic soil. She later moves the plants to a garden with neutral soil. She notices that one of the plants got taller and one of the plants got shorter. Which type of phenotypic plasticity is this?
A) No plasticity
B) Plasticity
C) Continuously variable plasticity
C) Continuously variable plasticity
The path length and strength of the sun's rays at the equator is
A) Longer path length and stronger rays
B) Longer path length and weaker rays
C) Shorter path length and stronger rays
D) Shorter path length and weaker rays
C) Shorter path length and stronger rays
If I wanted to predict how many bees will survive in the next 10 years based on current climate change trends, which study type matches what I am trying to do?
A) Analysis of patterns
B) Experimental
C) Quantitative modeling
D) Natural history observations
C) Quantitative modeling
Which animal out of the following had the LOWEST reservoir competence in the acorn/tick case study?
A) Mice
B) Chipmunks
C) Deer
C) Deer
There is one population of green frogs and one population of red frogs. Gene flow occurs when frogs migrate between these populations. What happens to the diversity WITHIN populations and the diversity BETWEEN populations?
A) Diversity within and between populations goes up
B) Diversity within a population goes up, but diversity between populations go down
C) Diversity within a population goes down, but diversity between populations goes up
B) Diversity within a population goes up, but diversity between populations go down
Which of the following is true about adiabatic processes?
A) As air pressure increases, temperature decreases
B) As air pressure decreases, temperature increases
C) As air pressure decreases, temperature decreases
C)As air pressure decreases, temperature decreases
A forest ecologist is trying to test germination success of pine trees based on differing shade conditions.
-There are three different sites with differing shade conditions (natural shade conditions, added shade, reduced shade)
-He uses a number generator to select which site is assigned which shade condition
He notices that the site with the least shade had the highest germination success. Why might his results not be accurate?
A) His experiment lacks a control
B) His experiment lacks replication
C) His experiment lacks randomization
D) His experiment is fine - try to publish it!
B) His experiment lacks replication
You are an expert in analyzing animal waste (imagine it pays well). One of your students brings in mystery urine and scat for you to analyze. You notice that the urine is very concentrated and the scat is very dry. Which biome could you assume the animal lives in based on this information?
A) Temperate forest
B) Desert
C) Tropical rainforest
D) It is impossible to tell based on this information
B) Desert