Which process of evolution does not change the total number of species?
A) Branching evolution
B) Nonbranching evolution
C) Extinction
D) All change the number of species
B
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At low population density, __________ is favored,
quickly producing as many offspring as possible. Fill in the blank(s) with the appropriate word(s).
What is different between two alleles of the same gene?
A) Their location. For example, one allele might be at the end of one chromosome, while the other allele is in the middle of another chromosome. B) The chromosome number they are on. For example, one allele might be on chromosome 12, while the other one is on chromosome 3. C) The information they carry. For example, one allele might carry the information for blue eye pigment, while the other carries the information for brown eye pigment. D) The cell they are in. For example, one might be in a liver cell, while the other is in a blood cell.
The chloroplasts of modern plants are thought to have been derived according to which sequence?
A) cyanobacteria ? green algae ? green plants B) cyanobacteria ? green algae ? fungi ? green plants C) red algae ? brown algae ? green algae ? green plants D) red algae ? cyanobacteria ? green plants E) cyanobacteria ? red algae ? green algae ? green plants
Olfactory receptors are located in the ________ cavity
Fill in the blank(s) with correct word