UCF BIOLOGY EXIT exam Most Updated Question
and Answer (2026/2027) | Verified Practice
Material | A+ Verified
• DNA sequences in many human genes are very similar to the sequences of
corresponding genes in chimpanzees. The most likely explanation for this result is
that . CORRECT ANSWER: Humans and chimpanzees share a relatively recent
common ancestor
• It has been observed that organisms on islands are different from, but closely
related to, similar forms found on the nearest continent. This is taken as evidence
that . CORRECT ANSWER: Island forms and mainland forms descended from
common ancestors
• Of the following anatomical structures, which is homologous to the wing of a
bird? . CORRECT ANSWER: Flipper of a cetacean
• In Darwin's thinking, the more closely related two different organisms are, the .
CORRECT ANSWER: More recently they share a common ancestor
• Charles Darwin was the first person to propose . CORRECT ANSWER: A
mechanism for evolution that was supported by evidence
• Which naturalist synthesized a concept of natural selection independently of
Darwin? . CORRECT ANSWER: Alfred Wallace
• Darwin's mechanism of natural selection required long time spans in order to
modify species. From whom did Darwin get the concept of Earth's ancient age? .
CORRECT ANSWER: Charles Lyell
, • Tropical grasslands with scattered trees are known as . CORRECT ANSWER:
Savannas
• Which biome is able to support many large animals despite receiving moderate
amounts of rainfall? . CORRECT ANSWER: Savanna
• Which of the following organisms is the most likely candidate for geographic
isolation? . CORRECT ANSWER: Land snail
• The main reason polar regions are cooler than the equator is because .
CORRECT ANSWER: Sunlight strikes the poles at a lower angle
• Which of the following is responsible for the summer and winter stratification of
deep temeprate lakes? . CORRECT ANSWER: Water is densest at 4 celsius
• In temperate lakes, the surface water is replenished with nutrients during
turnovers that occur in the . CORRECT ANSWER: Autumn and spring
• Which of the following abiotic factors has the greatest influence on the
metabolic rates of plants and animals? . CORRECT ANSWER: Temperature
• Which of the following are important abiotic factors that can affect the
structure and organization of biological communities? . CORRECT ANSWER:
Predation, competition
and Answer (2026/2027) | Verified Practice
Material | A+ Verified
• DNA sequences in many human genes are very similar to the sequences of
corresponding genes in chimpanzees. The most likely explanation for this result is
that . CORRECT ANSWER: Humans and chimpanzees share a relatively recent
common ancestor
• It has been observed that organisms on islands are different from, but closely
related to, similar forms found on the nearest continent. This is taken as evidence
that . CORRECT ANSWER: Island forms and mainland forms descended from
common ancestors
• Of the following anatomical structures, which is homologous to the wing of a
bird? . CORRECT ANSWER: Flipper of a cetacean
• In Darwin's thinking, the more closely related two different organisms are, the .
CORRECT ANSWER: More recently they share a common ancestor
• Charles Darwin was the first person to propose . CORRECT ANSWER: A
mechanism for evolution that was supported by evidence
• Which naturalist synthesized a concept of natural selection independently of
Darwin? . CORRECT ANSWER: Alfred Wallace
• Darwin's mechanism of natural selection required long time spans in order to
modify species. From whom did Darwin get the concept of Earth's ancient age? .
CORRECT ANSWER: Charles Lyell
, • Tropical grasslands with scattered trees are known as . CORRECT ANSWER:
Savannas
• Which biome is able to support many large animals despite receiving moderate
amounts of rainfall? . CORRECT ANSWER: Savanna
• Which of the following organisms is the most likely candidate for geographic
isolation? . CORRECT ANSWER: Land snail
• The main reason polar regions are cooler than the equator is because .
CORRECT ANSWER: Sunlight strikes the poles at a lower angle
• Which of the following is responsible for the summer and winter stratification of
deep temeprate lakes? . CORRECT ANSWER: Water is densest at 4 celsius
• In temperate lakes, the surface water is replenished with nutrients during
turnovers that occur in the . CORRECT ANSWER: Autumn and spring
• Which of the following abiotic factors has the greatest influence on the
metabolic rates of plants and animals? . CORRECT ANSWER: Temperature
• Which of the following are important abiotic factors that can affect the
structure and organization of biological communities? . CORRECT ANSWER:
Predation, competition
