BIOBEYOND UNIT 7 GLOBAL WARMING
GREENHOUSE EFFECT DYNAMICS REVIEW
GUIDE 2026 CERTIFICATION A+
◉ Principles of natural selection.
Answer: 1. variation within a population
2. heredity
3. limited resources
4. overproduction
5. competition
- differential survival & reporduciton
6. adaptation
- advantages traits increase in frequency
◉ mutation.
Answer: = ultimate source of variation
affect structure of protein or regulate protein expression
◉ Why does the Hardy-Weinberg equilibirum exist if it is almost
never possible?.
,Answer: null hypothesis
- population always change to some degree
use as a starting point for comparison
◉ What produces genetic varation?.
Answer: mutations
sexual reproduction
-crossing over
- independent orientation of homologous chromosomes
- random fertilization
◉ directional selection.
Answer: natural selection in which individuals at one of the
extremes of the phenotypic range survive & reproduce more
successfully than others
shift overall makeup of population against the other phenotypic
extreme
after change in selective pressure in envi
, ◉ stabilizing selection.
Answer: natural selection that favors intermediate variants by acting
extreme phenotypes
envi is stable
most common
◉ disruptive selection.
Answer: natural selection in which individuals on both extremes of a
phenotypic range are favored over intermediate phenotypes
after major change in the environment
◉ sexual selection.
Answer: a form of natural selection in which individuals with certain
inherited traits are more likely than other individuals to obtain
mates
◉ sexual dimorphism.
Answer: marked differences between males & females of the same
species
GREENHOUSE EFFECT DYNAMICS REVIEW
GUIDE 2026 CERTIFICATION A+
◉ Principles of natural selection.
Answer: 1. variation within a population
2. heredity
3. limited resources
4. overproduction
5. competition
- differential survival & reporduciton
6. adaptation
- advantages traits increase in frequency
◉ mutation.
Answer: = ultimate source of variation
affect structure of protein or regulate protein expression
◉ Why does the Hardy-Weinberg equilibirum exist if it is almost
never possible?.
,Answer: null hypothesis
- population always change to some degree
use as a starting point for comparison
◉ What produces genetic varation?.
Answer: mutations
sexual reproduction
-crossing over
- independent orientation of homologous chromosomes
- random fertilization
◉ directional selection.
Answer: natural selection in which individuals at one of the
extremes of the phenotypic range survive & reproduce more
successfully than others
shift overall makeup of population against the other phenotypic
extreme
after change in selective pressure in envi
, ◉ stabilizing selection.
Answer: natural selection that favors intermediate variants by acting
extreme phenotypes
envi is stable
most common
◉ disruptive selection.
Answer: natural selection in which individuals on both extremes of a
phenotypic range are favored over intermediate phenotypes
after major change in the environment
◉ sexual selection.
Answer: a form of natural selection in which individuals with certain
inherited traits are more likely than other individuals to obtain
mates
◉ sexual dimorphism.
Answer: marked differences between males & females of the same
species
