BIOBEYOND UNIT 7 CLIMATE SYSTEM EARTH ENERGY BALANCE ASSESSMENT QUESTIONS SOLUTIONS 2026 GRADED A+

BIOBEYOND UNIT 7 CLIMATE SYSTEM
EARTH ENERGY BALANCE ASSESSMENT
QUESTIONS SOLUTIONS 2026 GRADED A+



◉ population.
Answer: a group of individuals of the same species that live in the
same area and can potentially interbreed


◉ evolution.
Answer: a change in the prevalence of certain heritable traits in a
population over generations


a change in the genetic makeup of a population


◉ gene pool.
Answer: all copies of every type of allele at every locus in all
members of the population


◉ microevolution.

,Answer: a change in the relative frequencies of alleles in a
population


a change in the population's gene pool after generations


◉ Hardy-Weinberg equilibirum.
Answer: the state of a population in which frequencies of alleles &
genotypes in a population remain constant from generation to
generation


gene pool stays constant over generations


◉ Hardy-Weinberg equilibrium equations.
Answer: p + q = 1


p^2+2pq+q^2=1


◉ Requirements of Hardy-Weinberg equilibrium.
Answer: 1. very large population
2. no gene flow between populations
3. no mutations
4. random mating

, 5. no natural selection


◉ What causes microevolution?.
Answer: 1. natural selection
2. genetic drift
3. genetic flow


◉ genetic drift.
Answer: a change in the gene pool of a population due to random
chance


happen in smaller population


◉ bottleneck effect.
Answer: change in allele frequency following a dramatic reduction in
the size of a population


ex. hurricanes, floods, fires


◉ founder effect.
Answer: change in allele frequencies as a result of the migration of a
small subgroup of a population