Scientific Method
You collect data comparing the number of bees found in five different gardens. This is the correct graph type to use
bar graph
During childbirth, contractions intensify as oxytocin release increases, creating this kind of feedback loop
positive feedback loop
Territorial birds nesting on a rocky shoreline demonstrate this pattern of population distribution
uniform distribution
A group of tissues working together for a specific function fits this level of biological organization
organ
Species that have few reproductive events, few offspring, high rates of parental care, and long lifespans
K-selected species
In an experiment testing whether a tutoring program improves grades, this group would receive no tutoring at all
control group
Two brown bears are competing for salmon in the same river. this is an example of:
intraspecific competition
A removal of hawks from a grassland leads to an explosion of mice, which then overeat seeds. The amount of producers decreases, followed by a significant loss of species diversity. This is an example of what ecological phenomenon?
trophic cascade
These organelles would be found in large quantities in cells that contract repeatedly, such as heart muscle cells
mitochondria
A red blood cell shrivels after being placed in seawater. What type of solution is the seawater relative to the cell?
hypertonic
A scientist tests whether music volume affects how quickly bread molds. She plays loud music for one loaf and quiet music for another. What is the independent variable?
The volume of the music
A population graph that starts fast but eventually flattens near a maximum limit is showing this growth pattern
logistic growth
If 8,000 kcal are available at the producer level, how much energy will be available to tertiary consumers?
8 kcal
A cell with many folds and projections uses this structural feature to improve the efficiency of nutrient exchange
Increased surface area-to-volume ratio
When body temperature drops, muscles begin shivering to generate heat and bring temperature back to normal. This response is an example of which feedback type?
negative feedback
A researcher wants to know if soil temperature affects root growth. What is the dependent variable?
The amount of root growth
An enzyme exposed to boiling temperatures changes shape and stops working. Name this phenomenon
denaturation (enzyme is denatured)
A deer population experiences a harsh winter with frequent storms. This type of limiting factor has affected them
A density-independent factor
Cells increase in number during this specific phase of the cell cycle
cytokinesis
Glucose moves across a membrane from high to low concentration using a protein channel. What type of transport is this?
facilitated diffusion
A study testing how well two types of exercise reduce stress should use this type of graph if stress levels are measured weekly for three months
A line graph
A survivorship curve that has high infant mortality rates
type 3
This step of the nitrogen cycle converts ammonium into nitrite and then nitrate
nitrification
A white blood cell engulfs and digests a harmful bacterium. Which organelle is primarily responsible for breaking down the bacterium once it’s inside the cell?
Lysosome
A cell that produces large amounts of protein for export—like a pancreatic cell—would have an extensive network of this organelle
Rough endoplasmic reticulum