*Question*
Answer the following question given this paragraph: After a mass extinction, many habitats are no longer inhabited by organisms because they have gone extinct. With new habitats available, some species will adapt to the new environments. Evolutionary processes act rapidly during these times. Many new species evolve to fill those available habitats. The process in which many new species evolve in a short period of time to fill available niches is called adaptive radiation . At the end of this period of rapid evolution, the life forms do not look much like the ones that were around before the mass extinction. One example came after the extinction of the dinosaurs. Mammals underwent adaptive radiation and became the dominant life form. Although they lived in the habitats the dinosaurs had lived in, they didn't look much like the dinosaurs. Q: What is the process in which many new species evolve in a short period of time to fill available niches called? Choices: - adaptation - learned behavior - spontaneous mutation - adaptive radiation A:
**Answer**
adaptive radiation

*Question*
Answer the following question given this paragraph: Ecology is the study of how living things interact with each other and with their environment. It is a major branch of biology, but has areas of overlap with geography, geology, climatology, and other sciences. This lesson introduces fundamental concepts in ecology, beginning with organisms and the environment. Q: What is the term for the study of how living things interact with each other and with their environment? Choices: - biology - radiology - anthropology - ecology A:
**Answer**
ecology

*Question*
Answer the following question given this paragraph: Q: What evolutionary process does not favor altruistic behavior that causes the death of the altruist? Choices: - flow selection - characteristic selection - random selection - natural selection A:
**Answer**
natural selection

*Question*
Answer the following question given this paragraph: Mendel summarized his findings in two laws: the Law of Segregation and the Law of Independent Assortment. The Law of Segregation is based on his findings from his first set of experiments. Mendel stated that heritable factors are segregated during gamete formation. More precisely, this law states that a pair of alleles is separated, or segregated, during the formation of gametes. During meiosis, homologous chromosomes are randomly separated. Each resulting gamete has an equal probability or chance of receiving either of the two alleles. In other words, each gamete has only one allele for each gene. Q: Which law states that a pair of alleles is separated, or segregated, during the formation of gametes? Choices: - de facto segregation - law of equals - separation anxiety - law of segregation A:
**Answer**
law of segregation