Can I do
LS3A I can explain biological evolution.
2. LS3A I can describe the reasons why some offspring are better able to survive and
produce offspring.
3. LS3A I can give examples of traits that will improve a population’s survival rates
and subsequent reproduction in a specific environment.
4. LS3A I can describe examples when environmental pressure on a population caused
natural selection.
5. LS3A I can predict the effect on a population if a change occurs in…
inherited genes of offspring, resources, competition, and/or environmental
6. LS3B I can describe mutations as random changes/mistakes in the copying of
genetic material. When mutations occur in egg or sperm cells in sexually
reproducing organisms or in asexual organisms (bacteria) these genes can be
inherited by future generations.
7. LS3B I can describe the molecular processes and/or environmental factors by
which gene mutations can occur (insertion, deletion, substitution, UV radiation in
sunlight, mutagenic chemicals).
8. LS3B I understand that genetic mutations will often have no effect, may be
harmful, or beneficial by causing changes that allow the offspring to survive longer
and reproduce more. The mutation and the result are due to random chance.
9. LS3B I can predict when a trait will allow a species to survive and reproduce in a
given environment.
10. LS3C I can explain that species alive today have diverged from a common
ancestor by interpreting a diagram representing an evolutionary tree.
11. LS3E I can describe the evolutionary relationship between two organisms and/ or
identify the organisms that are most closely related given a diagram representing
an evolutionary tree.
12. LS3C I can explain how filling an available niche can allow a species to survive.
Discussion Question Due January 3rd, 2012:
Discuss with your parents/guardians and write a one paragraph summary (5 sentences) of the conversation in
your biology notebook, and then have them write their initials next to the summary?
Have you or anyone in your family been treated by antibiotics? Could you say that antibiotics saved yours or or
one of your family member’s life? Explain.
1. adaptation
2. antibiotic
3. bacteria
4. biological
5. common
6. diverge
7. environment
8. evidence
genetically present within a population and passed on to future generations
within a species
a medicine that destroys microorganisms
most evolved organisms on earth, microscopic, single celled
the consequence of the interaction of population growth, inherited variability of
offspring, a finite supply of resources, and/or natural selection by the
environment of offspring better able to survive and reproduce.
all living organisms on Earth are descended from this
9. evolutionary
10. extinction
11. gene
developed in a different direction
natural surroundings including living and non-living components
observations, measurements, or data collected through established and
recognized scientific processes.
a diagram with different branches representing relatedness amongst species
(current and extinct).
the death of all members of a species
a segment of DNA (information) that codes for a specific trait.
12. gene
13. genetic
a change in the genetic material (DNA) of an organism which occurs by random
the regrouping of genes in offspring
14. genetic
15. heredity
16. inference
difference in the gene makeup of offspring due to mutation and the
recombination of genes.
the passing of traits to offspring.
a logical conclusion based upon evidence
17. molecule
18. natural
a stable unit of two or more atoms held together by chemical bonds.
The process by which heritable traits that are favored by environmental
conditions become more common in successive generations and heritable traits
that are less favored by environmental conditions become less common. Over
time, this process may result in the emergence of new species.
how and where an organism makes a living (it’s position in the ecosystem)
an animal’s young
a group of organisms of the same species living in the same habitat
production of offspring
continue to live
a group of organisms capable of interbreeding and producing fertile offspring
a genetically determined characteristic
19. niche
20. offspring
21. population
22. reproduce
23. survive
24. species
25. trait
26. variation
a measure of the tendency of individuals in a population to differ from one