Question | Answer |
What is a pioneer species? | Species that break down rocks to create soil in primary ecological succession
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What are the three types of dispersion? | Random, clumped, and uniform
| What is carrying capacity? | The maximum amount of organisms an ecosystem can sustain
| True or False: As one moves away from the equator, species diversity increases. | False
| What is habitat fragmentation? | When an ecosystem is cut into smaller pieces.
| How many chromosomes does each parent contribute to their offspring? | 23
| True or False: Crossing over occurs more frequently between genes that are close together. | False
| Give an example of homozygous dominant gene. | AA
| Give an example of a heterozygous dominant gene. | Aa
| What is a Barr body? | Condensed, inactivated X chromosome
| What is a half-life? | How long it takes for half of a sample to decay
| True or False: Earth's early atmosphere contained oxygen. | False
| What is mass extinction? | When a large population dies
| What is a carrier? | An individual who carries a gene, but does not express the gene.
| Name two types of fossils. | Trace, mold, cast, petrified, or amber
| What is radioactive dating? | The use of radioactive isotopes to determine how old a sample is
| Which theory explains the origins of mitochondria and chloroplasts? | Endosymbiont theory |