2026 VERIFIED QUESTIONS WITH
COMPLETE SOLUTIONS GRADED A+
⩥ scientific method.
Answer: 1. observation
2. formulate a hypothesis
3. devise a testable prediction
4. conduct a critical experiment
5. conclusions and revisions
⩥ components of a well designed experiments.
Answer: treatment
1. experimental group
2. control group
3. IV (experimental variable) and DV
4. blind strategies
5. random
6. repeatable
⩥ hypothesis.
,Answer: tentative explanation for observation
⩥ standard error lines.
Answer: variation in data within the group; represents the uncertianty or
error of the corresponding coordinate of the point
⩥ positive correlation.
Answer: when one variable increases the other increases
⩥ negative correlation.
Answer: when one variable increases and the other decreases
⩥ population.
Answer: group of same species that live in a specific habitat
⩥ community.
Answer: all the differnet species living in a specific area
⩥ ecosystem.
Answer: all living organisms and non-living elements in an area
⩥ population ecology.
,Answer: study of the dynamics of a population and how it interact with
their environments; looks at the population sizes of species change over
time
⩥ exponential growth.
Answer: when a pop. grows at a rate that is proportional to its current
size; bigger pop. = faster growth
⩥ logistic growth.
Answer: when a population grows exponentially at first, growth slows
are pop. reaches carrying capacity; better approximation of how
populations grow in the real world
⩥ population explosions.
Answer:
⩥ population oscillations.
Answer: when populations of species have regular cycles between very
large numbers and crashes to small numbers
⩥ limits population size.
Answer: abiotic and biotic factors
⩥ biotic factors.
, Answer: living things
1. crowding
2. competition
3. infectious disease
4. predation
⩥ abiotic factors.
Answer: enviromental factors
1. severe weather
2. natural disaster
3. temperature (?)
⩥ population density.
Answer: # if individuals of a species per unit are of habitat
⩥ population dispersion.
Answer: how the people are scattered in a unit area; clumped, uniform,
random
⩥ clumped dispersion.
Answer: congregate near resources; most common in nature