Which type of reproduction:
1. Results in offspring with low genetic variation
2. Does not form gametes
3. Produces at least one offspring.
All cells use a process called _____ _____ to make new cells.
*Note: each blank is a separate word.
cell division
What step during meiosis explains why each offspring is genetically different from each other and each parent?
recombination
Using the existing variation of traits within a species to favor those better suited to the environment refers to what process?
Natural selection
You overhear your friend talking about the geologic time scale. She says that we are currently living in the phanerozoic era. You recognize that this is an incorrect statement. You politely correct her by stating that we in fact are living in the _____ era.
Cenozoic
The male reproductive organ of a flower is called the _____. It can be divided into _____ parts.
2. 2
Meiosis is a _____ stage process.
2
Squirrels on different sides of the Grand Canyon evolving differently refers to what type of speciation?
allopatric
Name the principle that states that the oldest rock layer is found at the bottom in an undisturbed stack of rocks.
Law of superposition
The female reproductive organ of the flower is called the _____. It can be divided into _____ parts.
1. Pistil
2. 3
Meiosis begins with _____ diploid parent cell and ends with _____ haploid daughter cells.
1. 1
2. 4
The main function of a gene is to control the production of a specific _____ that influences an organisms traits.
protein
speciation
List 4 types of fossils.
1. Cast
2. Mold
3. Trace
4. Petrified
5. Preserved
6. Carbon Film
Organize the following terms from smallest (top) to largest (bottom).
1. DNA
2. Nitrogen Base
3. Cell
4. Gene
5. Nucleus
6. Chromosome
1. Nitrogen Base
2. DNA
3. Gene
4. Chromosome
5. Nucleus
6. Cell
Every gamete in the human body contains _____ chromosomes. Every somatic cell in the human body contains _____ chromosomes.
1. 23
2. 46
1. Transcription
2. Translation
What term best describes the process of humans selecting for desirable traits in organisms.
Artificial selection (selective breeding)
1. Era
2. Period
3. Eon
1. Eon
2. Era
3. Period
List 4 types of animal courtship behavior.
1. Cannibalistic mating
2. Vocalization
3. Dancing
4. Highlighting anatomy
5. Fighting
6. Gift giving
Within human somatic cells, each parent cell contains _____ chromosomes and each daughter cell contains _____ chromosomes.
1. 46
2. 46
CTA GCT ATC GAA CGC
GAT CGA TAG CTT GCG
List 5 types of speciation
1. Allopatric
2. Peripatric
3. Parapatric
4. sympatric
5. Artificial
List two characteristics of index fossils.
1. Abundant
2. Easily recognizable
3. Wide geographic distribution
4. Lived a short time